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- Table of Contents
-
- 19-Security Command Reference
- 00-Preface
- 01-Object group commands
- 02-Keychain commands
- 03-Public key management commands
- 04-PKI commands
- 05-Crypto engine commands
- 06-SSH commands
- 07-SSL commands
- 08-Security zone commands
- 09-Packet filter commands
- 10-ASPF commands
- 11-Security policy commands
- 12-Session management commands
- 13-ARP attack protection commands
- 14-ND attack defense commands
- 15-Attack detection and prevention commands
- 16-mGRE commands
- 17-Connection limit commands
- 18-IP-based attack prevention commands
- 19-IP source guard commands
- 20-uRPF commands
- 21-APR commands
- 22-FIPS commands
- Related Documents
-
| Title | Size | Download |
|---|---|---|
| 21-APR commands | 289.64 KB |
description (application group view)
description (user-defined NBAR application rule view)
description (user-defined NBAR application view)
display application statistics
display application statistics top
display port-mapping pre-defined
APR commands
app-group
Use app-group to create an application group and enter its view, or enter the view of an existing application group.
Use undo app-group to delete the specified application group.
Syntax
app-group group-name
undo app-group group-name
Default
No application groups exist.
Views
System view
Predefined user roles
network-admin
Parameters
group-name: Specifies the application group name, a case-insensitive string of 1 to 63 characters. The names invalid and other are not allowed.
Usage guidelines
You can create a maximum of 1000 application groups on the device.
Examples
# Create an application group named aaa and enter its view.
<Sysname> system-view
[Sysname] app-group aaa
[Sysname-app-group-aaa]
Related commands
copy app-group
description
include application
application statistics enable
Use application statistics enable to enable the application statistics feature on the specified direction of an interface.
Use undo application statistics enable to disable the application statistics feature on the specified direction of an interface.
Syntax
application statistics enable [ inbound | outbound ]
undo application statistics enable [ inbound | outbound ]
Default
The application statistics feature is disabled on both directions of an interface.
Views
Layer 3 interface view
Predefined user roles
network-admin
Parameters
inbound: Specifies the inbound direction of the interface.
outbound: Specifies the outbound direction of the interface.
Usage guidelines
|
|
IMPORTANT: The application statistics feature consumes a large amount of system memory. When the system generates a low-memory alarm, disable the application statistics feature on interfaces. |
If no direction is specified, application statistics is enabled in both the inbound and outbound directions.
When this feature is enabled, the device separately counts the number of packets or bytes that the interface has received or sent for each application protocol. It also calculates the transmission rates of the interface for these protocols.
To display application statistics, use the display application statistics command.
Examples
# Enable application statistics in the inbound direction of GigabitEthernet 1/0/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] application statistics enable inbound
# Enable application statistics in the outbound direction of GigabitEthernet 1/0/2.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/2
[Sysname-GigabitEthernet1/0/2] application statistics enable outbound
# Enable application statistics in the inbound and outbound directions of GigabitEthernet 1/0/3.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/3
[Sysname-GigabitEthernet1/0/3] application statistics enable
# Enable application statistics in the inbound direction of Vlan-interface 2.
<Sysname> system-view
[Sysname] interface Vlan-interface 2
[Sysname-Vlan-interface2] application statistics enable inbound
Related commands
display application statistics
apr signature auto-update
Use apr signature auto-update to enable automatic update for the APR signature library and enter auto-update configuration view.
Use undo apr signature auto-update to disable automatic update for the APR signature library.
Syntax
apr signature auto-update
undo apr signature auto-update
Default
Automatic update is disabled for the APR signature library.
Views
System view
Predefined user roles
network-admin
Usage guidelines
Use this command to update the APR signature library if the device can access the signature library services at the H3C website.
Examples
# Enable automatic update for the APR signature library and enter auto-update configuration view.
<Sysname> system-view
[Sysname] apr signature auto-update
[Sysname-apr-autoupdate]
Related commands
override-current
update schedule
apr signature auto-update-now
Use apr signature auto-update-now to manually trigger an automatic update for the APR signature library.
Syntax
apr signature auto-update-now
Views
System view
Predefined user roles
network-admin
Usage guidelines
This command starts the automatic APR signature library update process and backs up the current APR signature file. This command is independent of the apr signature auto-update command.
Use this command to update the APR signature library if you find a new version of APR signature library at the H3C website.
Examples
# Manually trigger an automatic update for the APR signature library.
<Sysname> system-view
[Sysname] apr signature auto-update-now
apr signature update
Use apr signature update to manually update the APR signature library.
Syntax
apr signature update [ override-current ] file-path
Views
System view
Predefined user roles
network-admin
Parameters
override-current: Overwrites the old APR signature file. If you do not specify this keyword, the old APR signature file will be saved as a backup signature file on the device after the update.
file-path: Specifies the path of the new APR signature file, a case-insensitive string of 1 to 255 characters.
Usage guidelines
Use this command to update APR signature library if the device cannot access the signature library services at the H3C website.
You can use either of the following methods to manually update the APR signature library:
· Local update—By using the locally stored APR signature file.
To ensure a successful update, the APR signature file must be stored on the active MPU.
The following table describes the formats of the file-path argument for different update scenarios:
|
Update scenario |
Format of file-path |
Remarks |
|
The update file is stored in the current working directory. |
filename |
To display the current working directory, use the pwd command (see file system management in Fundamentals Command Reference). |
|
The update file is stored in a different directory on the same storage medium. |
filename |
Before updating the signature library, you must use the cd command to open the directory where the update file is stored. For information about the cd command, see file system management in Fundamentals Command Reference. |
|
The update file is stored on a different storage medium. |
path/filename |
Before updating the signature library, you must first use the cd command to open the root directory of the storage medium where the file is stored. For information about the cd command, see file system management in Fundamentals Command Reference. |
· FTP/TFTP update—By using the APR signature file stored on an FTP or TFTP server.
The following table describes the formats of the file-path argument for different update scenarios:
|
Update scenario |
Format of file-path |
Remarks |
|
The update file is stored on an FTP server. |
ftp://username:password@server address/filename |
The username argument represents the FTP login username. The password argument represents the FTP login password. The server address argument represents the IP address or host name of the FTP server. If an FTP login username or password includes colons (:), at signs (@), or slashes (/), you must replace these special characters with the corresponding escape characters. · The escape character for the colon (:) character is %3A or %3a. · The escape character for the at sign (@) character is %40. · The escape character for the slash (/) character is %2F or %2f. |
|
The update file is stored on a TFTP server. |
tftp://server address/filename |
The server address argument represents the IP address or host name of the TFTP server. |
If you specify the host name, make sure the following requirements are met:
¡ The device can resolve the IP address of the FTP or TFTP server through static or dynamic domain name resolution.
¡ The device and server can reach each other.
- For information about DNS, see Layer 3—IP Services Configuration Guide.
Examples
# Manually update the APR signature library by using an APR signature file stored on a TFTP server.
<Sysname> system-view
[Sysname] apr signature update tftp://192.168.0.1/apr-1.0.2-en.dat
# Manually update the APR signature library by using an APR signature file stored on an FTP server.
<Sysname> system-view
[Sysname] apr signature update ftp://user%3A123:user%40abc%[email protected]/apr-1.0.2-en.dat
# Manually update the APR signature library by using an APR signature file stored on the device, The file is stored in directory cfa0:/apr-1.0.23-en.dat. In this example, the working directory is cfa0:.
<Sysname> system-view
[Sysname] apr signature update apr-1.0.23-en.dat
# Manually update the APR signature library by using an APR signature file stored on the device, The file is stored in directory cfa0:/dpi/apr-1.0.23-en.dat. In this example, the working directory is cfa0:.
<Sysname> cd dpi
<Sysname> system-view
[Sysname] apr signature update apr-1.0.23-en.dat
# Manually update the APR signature library by using an APR signature file stored on the device, The file is stored in directory cfb0:/dpi/apr-1.0.23-en.dat. In this example, the working directory is cfa0:.
<Sysname> cd cfb0:/
<Sysname> system-view
[Sysname] apr signature update dpi/apr-1.0.23-en.dat
copy app-group
Use copy app-group to copy all application protocols in an application group to another group.
Syntax
copy app-group group-name
Views
Application group view
Predefined user roles
network-admin
Parameters
group-name: Specifies the name of the source application group, a case-insensitive string of 1 to 63 characters. The names invalid and other are not allowed.
Usage guidelines
Execute this command multiple times to copy application protocols in different groups to the current group.
Examples
# Copy application protocols in group bcd to group abc.
<Sysname> system-view
[Sysname] app-group abc
[Sysname-app-group-abc] copy app-group bcd
Related commands
app-group
include application
description (application group view)
Use description to configure the description of an application group.
Use undo description to restore the default.
Syntax
description text
undo description
Default
An application group is described as "User-defined application group".
Views
Application group view
Predefined user roles
network-admin
Parameters
text: Specifies a description, a case-sensitive string of 1 to 127 characters. If the string includes spaces, use a pair of quotation marks ("") to enclose all characters.
Usage guidelines
Configure descriptions for different application groups for identification and management purposes.
Examples
# Configure a description for application group aaa.
<Sysname> system-view
[Sysname] app-group aaa
[Sysname-app-group-aaa] description "User defined aaa group"
Related commands
app-group
description (user-defined NBAR application rule view)
Use description to configure the description of a user-defined NBAR application rule.
Use undo description to restore the default.
Syntax
description text
undo description
Default
A user-defined NBAR application rule is described as "User defined rule".
Views
User-defined NBAR application rule view
Predefined user roles
network-admin
Parameters
text: Specifies a description, a case-sensitive string of 1 to 127 characters.
Usage guidelines
Configure descriptions for different user-defined NBAR application rules for identification and management purposes.
Examples
# Configure a description for user-defined NBAR application rule 1.
<Sysname> system-view
[Sysname] nbar user-defined-application abcd
[Sysname-user-defined-app-abcd] rule 1 l4-protocol tcp l5-protocol http pattern-type keyword
[Sysname-user-defined-app-abcd-rule-1] description "A user-defined rule"
Related commands
nbar user-defined-application
rule
description (user-defined NBAR application view)
Use description to configure the description of a user-defined NBAR application.
Use undo description to restore the default.
Syntax
description text
undo description
Default
A user-defined NBAR application is described as "User defined application".
Views
User-defined NBAR application view
Predefined user roles
network-admin
Parameters
text: Specifies a description, a case-sensitive string of 1 to 127 characters.
Usage guidelines
Configure descriptions for different user-defined NBAR applications for identification and management purposes.
Examples
# Configure a description for user-defined NBAR application abcd.
<Sysname> system-view
[Sysname] nbar user-defined-application abcd
[Sysname-user-defined-app-abcd] description "A user-defined application based on HTTP"
destination address
Use destination address to specify a destination IP address or subnet as a match criterion in a user-defined NBAR application rule.
Use undo destination address to restore the default.
Syntax
destination address ip ipv4-address [ mask-length ]
undo destination address
Default
A user-defined NBAR application rule matches packets destined for all IP addresses.
Views
User-defined NBAR application rule view
Predefined user roles
network-admin
Parameters
ip ipv4-address: Specifies a destination IPv4 address or IPv4 subnet, in dotted decimal notation.
mask-length: Specifies the mask length for IPv4 addresses, in the range of 0 to 32. If you do not specify this argument, the default mask length is 32.
Usage guidelines
If you execute this command multiple times for the same user-defined NBAR application rule, the most recent configuration takes effect.
Examples
# Configure user-defined NBAR application rule 1 to match packets destined for IPv4 subnet 192.168.1.0/24.
<Sysname> system-view
[Sysname] nbar user-defined-application abcd
[Sysname-user-defined-app-abcd] rule 1 l4-protocol tcp l5-protocol http pattern-type keyword
[Sysname-user-defined-app-abcd-rule-1] destination address ip 192.168.1.0 24
destination port
Use destination port to specify a destination port number or port range as a match criterion in a user-defined NBAR application rule.
Use undo destination port to restore the default.
Syntax
destination port { port-num | range start-port to end-port }
undo destination port
Default
A user-defined NBAR application rule matches packets destined for all port numbers.
Views
User-defined NBAR application rule view
Predefined user roles
network-admin
Parameters
port-num: Specifies a destination port number, in the range of 0 to 65535.
range: Specifies a destination port range.
start-port: Specifies a start port number, in the range of 0 to 65534.
to end-port: Specifies an end port number, in the range of 1 to 65535. The end port number must be greater than the start port number.
Usage guidelines
If you execute this command multiple times for the same user-defined NBAR application rule, the most recent configuration takes effect.
Examples
# Configure user-defined NBAR application rule 1 to match packets destined for a port number in the range of 2001 to 2004.
<Sysname> system-view
[Sysname] nbar user-defined-application abcd
[Sysname-user-defined-app-abcd] rule 1 l4-protocol tcp l5-protocol http pattern-type keyword
[Sysname-user-defined-app-abcd-rule-1] destination port range 2001 to 2004
detection
Use detection to configure a detection item for a keyword-type signature.
Use undo detection to delete detection items for a keyword-type signature.
Syntax
detection detection-id field field-name match-type { exclude | include } { hex hex-vector | regex regex-pattern | text text-string } [ offset offset-value [ depth depth-value ] | relative-offset relative-offset-value [ relative-depth relative-depth-value ] ]
undo detection { all | detection-id }
Default
No detection items are configured for a keyword-type signature.
Views
Keyword-type NBAR rule signature view
Predefined user roles
network-admin
Parameters
detection-id: Specifies a detection item ID in the range of 1 to 32.
field field-name: Specifies a protocol field by its name. The detection item is matched in the scope of the specified protocol field. You can enter a question mark to obtain a list of supported protocol fields.
match-type { exclude | include }: Specifies the match type as exclude or include.
hex hex-vector: Specifies a hexadecimal vector as the match pattern. The hex-vector argument is a string of 8 to 126 characters. The number of characters must be even. The argument must start and end with a vertical bar (|), for example, |1234567890|.
regex regex-pattern: Specifies a regular expression as the match pattern. The regex-pattern argument is a case-sensitive string of 3 to 253 characters.
text text-string: Specifies a string as the match pattern. The string argument is a case-sensitive string of 3 to 256 characters.
offset offset-value: Specifies the offset from the beginning of the specified protocol field, in the range of 0 to 65535 bytes. A packet matches the signature after the offset. If you do not specify this option, a packet matches the signature from the beginning of the specified protocol field.
depth depth-value: Specifies the depth of the detection item, in the range of 3 to 65535 bytes.
relative-offset relative-offset-value: Specifies the offset from the end of the previous detection item, in the range of –32767 to –1 and 1 to 32767 bytes. A packet matches the signature after the offset. If the offset value is minus, the detection item is before the previous detection item.
relative-depth relative-depth-value: Specifies the relative depth of the detection item, in the range of 3 to 65535 bytes.
all: Specifies all detection items.
Usage guidelines
You can configure multiple detection items for a signature. The relationship among detection items is logic AND, and the match order is the configuration order. A packet matches a signature only if all detection items are matched.
As a best practice to ensure correct detection results, configure the protocol fields in the order they appear in HTTP packets.
Examples
# Configure a detection item in user-defined NBAR rule signature 1.
<Sysname> system-view
[Sysname] nbar user-defined-application app_http
[Sysname-user-defined-app-app_http] rule 1 l4-protocol tcp l5-protocol http pattern-type keyword
[Sysname-user-defined-app-app_http-rule-1] keyword-signature 1 field http.uri include text abcdefg
[Sysname-user-defined-app-app_http-rule-1-signature-1] detection 1 field http.uri match-type include text abc offset 10 depth 50
detect-length
Use detect-length to set the maximum detected length for a user-defined NBAR application.
Use undo detect-length to restore the default.
Syntax
detect-length value
undo detect-length
Default
The maximum detected length is not set for a user-defined NBAR application.
Views
User-defined NBAR application view
Predefined user roles
network-admin
Parameters
value: Specifies the maximum detected length in the range of 0 to 4294967295 bytes.
Usage guidelines
The maximum detected length determines whether to inspect subsequent packets after the device recognizes an application:
· If the inspected byte count already reaches the maximum number, the device will not inspect subsequent packets.
· If the inspected byte count does not reach the maximum number, the device will inspect subsequent packets until the maximum number is reached.
If no maximum detected length is configured, the device continues to inspect subsequent packets for application recognition after recognizing an application. Inspection of subsequent packets affects device performance.
When you set the maximum detected length, make sure you fully understand its impact on system performance.
If you execute this command multiple times, the most recent configuration takes effect.
Examples
# Set the maximum detected length to 100000 bytes for user-defined NBAR application abcd.
<Sysname> system-view
[Sysname] nbar user-defined-application abcd
[Sysname-user-defined-app-abcd] detect-length 100000
Related commands
nbar user-defined-application
direction
Use direction to specify a direction as a match criterion in a user-defined NBAR application rule.
Use undo direction to restore the default.
Syntax
direction { to-client | to-server }
undo direction
Default
A user-defined NBAR application rule matches packets in both directions.
Views
User-defined NBAR application rule view
Predefined user roles
network-admin
Parameters
to-client: Specifies the direction from server to client.
to-server: Specifies the direction from client to server.
Usage guidelines
To modify the direction, execute the undo direction command before configuring the new direction.
Examples
# Configure user-defined NBAR application rule 1 to match packets from client to server.
<Sysname> system-view
[Sysname] nbar user-defined-application abcd
[Sysname-user-defined-app-abcd] rule 1 l4-protocol tcp l5-protocol http pattern-type keyword
[Sysname-user-defined-app-abcd-rule-1] direction to-server
Related commands
rule
disable
Use disable to disable a user-defined NBAR application rule.
Use undo disable to restore the default.
Syntax
disable
undo disable
Default
A user-defined NBAR application rule is enabled.
Views
User-defined NBAR application rule view
Predefined user roles
network-admin
Usage guidelines
Use this command to disable a user-defined NBAR application rule if the following conditions exist:
· The NBAR application rule will not be used in the foreseeable future.
· You do not want to delete the NBAR application rule.
Examples
# Disable user-defined NBAR application rule 1.
<Sysname> system-view
[Sysname] nbar user-defined-application abcd
[Sysname-user-defined-app-abcd] rule 1 l4-protocol tcp l5-protocol http pattern-type keyword
[Sysname-user-defined-app-abcd-rule-1] disable
Related commands
rule
display app-group
Use display app-group to display information about the specified application groups.
Syntax
display app-group [ name group-name ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
name group-name: Specifies an application group by its name. The group-name argument is a case-insensitive string of 1 to 63 characters. The names invalid and other are not allowed. If you do not specify an application group, this command displays information about all application groups.
Examples
# Display information about all application groups.
<Sysname> display app-group
User-defined count:3
Group Name Type Group ID
6767 User-defined 0x00800002
er User-defined 0x00800001
hbc User-defined 0x00800003
# Display information about application group er.
<Sysname> display app-group name er
Group English name: er
Group Chinese name: er
Group ID: 0x00800001
Type: User-defined
Application count: 2
Include application list:
Application name Type App ID
114Travel Pre-defined 0x0000542c
banc User-defined 0x00800001
pre-defined app-group count:0
Include pre-defined app-group list:
App-group name Type App-group ID
Table 1 Command output
|
Field |
Description |
|
User-defined count |
Number of application groups. |
|
Group Name |
Name of the application group. |
|
Group English name |
English name of the application group. |
|
Type |
Application protocol attribute: · Pre-defined. · User-defined. This filed always displays User-defined for application groups. |
|
Application count |
Number of application protocols in the application group. |
|
Include application list |
Application protocol list. |
|
Application name |
Application protocol name. |
|
App ID |
Application protocol ID. |
|
pre-defined app-group count |
Number of predefined application groups in the application group. This field is not supported in the current software version. |
|
Include pre-defined app-group list |
List of predefined application groups. This field is not supported in the current software version. |
|
App-group name |
Name of a predefined application group. This field is not supported in the current software version. |
|
App-group ID |
ID of a predefined application group. This field is not supported in the current software version. |
Related commands
app-group
include
display application
Use display application to display information about the specified application protocols.
Syntax
display application [ pre-defined | user-defined ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
pre-defined: Specifies the predefined application protocols.
user-defined: Specifies the user-defined application protocols.
Usage guidelines
If you do not specify any parameters, this command displays information about all application protocols.
Examples
# Display information about all predefined application protocols.
<Sysname> display application pre-defined
Pre-defined count: 817
Application name Type App ID Tunnel Encrypted DetectLen
12530WAP_Application_We Pre-defined 0x000003ac No No 0
b_HTTP
12580_Application_HTTP Pre-defined 0x00000312 No No 0
126_Web_Email_Download_ Pre-defined 0x000002b7 No No 0
HTTP
126_Web_Email_Login_HTT Pre-defined 0x000002b3 No No 0
P
126_Web_Email_Read_Emai Pre-defined 0x000002b4 No No 0
l_HTTP
126_Web_Email_Receive_E Pre-defined 0x000002b6 No No 0
mail_HTTP
126_Web_Email_Send_Emai Pre-defined 0x000002b5 No No 0
l_HTTP
126_Web_Email_Upload_HT Pre-defined 0x000002b8 No No 0
TP
139_mobile_weibo_commen Pre-defined 0x000001da No No 0
t_HTTP
139_mobile_weibo_login_ Pre-defined 0x000001d9 No No 0
HTTP
139_mobile_weibo_login_ Pre-defined 0x00000444 No No 0
---- More ----
# Display information about all user-defined application protocols.
<Sysname> display application user-defined
User-defined count: 4
Application name Type App ID Tunnel Encrypted DetectLen
def User-defined 0x00800002 No No 0
dfer User-defined 0x00800003 No No 0
efer User-defined 0x00800004 No No 0
fdfad User-defined 0x00800001 No No 0
# Display information about all application protocols.
<Sysname> display application
Total count: 821
Pre-defined count: 817
User-defined count: 4
Application name Type App ID Tunnel Encrypted DetectLen
12530WAP_Application_We Pre-defined 0x000003ac No No 0
b_HTTP
12580_Application_HTTP Pre-defined 0x00000312 No No 0
126_Web_Email_Download_ Pre-defined 0x000002b7 No No 0
HTTP
126_Web_Email_Login_HTT Pre-defined 0x000002b3 No No 0
P
126_Web_Email_Read_Emai Pre-defined 0x000002b4 No No 0
l_HTTP
126_Web_Email_Receive_E Pre-defined 0x000002b6 No No 0
mail_HTTP
126_Web_Email_Send_Emai Pre-defined 0x000002b5 No No 0
l_HTTP
126_Web_Email_Upload_HT Pre-defined 0x000002b8 No No 0
TP
139_mobile_weibo_commen Pre-defined 0x000001da No No 0
t_HTTP
139_mobile_weibo_login_ Pre-defined 0x000001d9 No No 0
HTTP
139_mobile_weibo_login_ Pre-defined 0x00000444 No No 0
HTTPS
139Mail_Login_HTTP Pre-defined 0x000001cb No No 0
139Mail_Login_HTTPS Pre-defined 0x0000038c No No 0
139Mail_Login_TCP Pre-defined 0x0000044b No No 0
163TV_HTTP Pre-defined 0x000004c3 No No 0
17173_Application_HTTP Pre-defined 0x00000350 No No 0
178Game_Application_HTT Pre-defined 0x00000222 No No 0
P
17K_fiction_Application Pre-defined 0x00000330 No No 0
_HTTP
19lou_Login_http_stream Pre-defined 0x000002c0 No No 0
19lou_Publish_Or_Reply_ Pre-defined 0x000002c2 No No 0
http_stream1
19lou_Publish_Or_Reply_ Pre-defined 0x000002c3 No No 0
http_stream2
19lou_View_http_stream Pre-defined 0x000002c1 No No 0
1ting_Music_Application Pre-defined 0x000001bc No No 0
_Mobile_HTTP
21CN_Email_Read_HTTP Pre-defined 0x000003fb No No 0
21CN_Email_Send_HTTP Pre-defined 0x000003fc No No 0
---- More ----
Table 2 Command output
|
Field |
Description |
|
Total count |
Total number of application protocols. |
|
Pre-defined count |
Number of predefined application protocols. |
|
User-defined count |
Number of user-defined application protocols. |
|
Application name |
Name of the application protocol. |
|
Type |
Application protocol type: · Pre-defined. · User-defined. |
|
App ID/Application ID |
ID of the application protocol. |
|
Tunnel |
Whether or not the protocol is a tunnel protocol, such as L2TP: · Yes. · No. |
|
Encrypted |
Whether or not the protocol is a cryptographic protocol: · Yes. · No. |
|
DetectLen |
Length of data to be inspected for application recognition. The length can be predefined or user defined. The measurement unit is byte. |
Related commands
app-group
include
display application statistics
Use display application statistics to display statistics for the specified application protocols.
Syntax
display application statistics [ direction { inbound | outbound } | interface interface-type interface-number [ slot slot-number ] | name application-name ] *
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
direction: Specifies the direction of the interface.
inbound: Specifies the inbound direction.
outbound: Specifies the outbound direction.
interface interface-type interface-number: Specifies an interface by its type and number.
slot slot-number: Specifies a card by its slot number. This option is available only for global interfaces, such as VLAN interfaces and tunnel interfaces.
name application-name: Specifies an application protocol by its name, a case-insensitive string of 1 to 63 characters. The names invalid and other are not allowed.
Usage guidelines
If you do not specify any options or keywords, this command displays statistics for application protocols on all interfaces in both inbound and outbound directions.
This command displays statistics for application protocols only after the application statistics feature is enabled on the specified interfaces. Disabling the application statistics feature on the specified interfaces deletes the corresponding application statistics.
You can display statistics for application protocols based on certain criteria, including application protocol names, interface directions, interface names, or a combination of the criteria.
Examples
# Display application statistics for GigabitEthernet 1/0/1.
<Sysname> display application statistics interface gigabitethernet 1/0/1
Interface : GigabitEthernet1/0/1
Application In/Out Packets Bytes PPS BPS
Slot 1 :
http IN 275 78631 0 275
OUT 357 255251 0 101
https IN 403 39267 0 44
OUT 681 623501 0 32
netbios-dgm IN 3 729 0 32
OUT 0 0 0 0
netbios-ns IN 248 22816 2 1423
OUT 0 0 0 0
telnet IN 801 43374 10 4509
OUT 1519 65388 20 6774
# Display application statistics for Vlan-interface 2.
<Sysname> display application statistics interface Vlan-interface 2
Interface : Vlan-interface2
Application In/Out Packets Bytes PPS BPS
Slot 1 :
http IN 275 78631 0 275
OUT 357 255251 0 101
https IN 403 39267 0 44
OUT 681 623501 0 32
netbios-dgm IN 3 729 0 32
OUT 0 0 0 0
netbios-ns IN 248 22816 2 1423
OUT 0 0 0 0
telnet IN 801 43374 10 4509
OUT 1519 65388 20 6774
Table 3 Command output
|
Field |
Description |
|
Interface |
Interface name. |
|
Application |
Name of the application protocol. |
|
In/Out |
Interface direction: · In—Inbound. · Out—Outbound. |
|
Packets |
Number of packets received or sent by the interface. |
|
Bytes |
Number of bytes received or sent by the interface. |
|
PPS |
Packets received or sent per second. |
|
BPS |
Bytes received or sent per second. |
Related commands
app-group
application statistics enable
display application statistics top
Use display application statistics top to display statistics for application protocols on an interface in descending order, based on the specified criteria.
Syntax
display application statistics top number { bps | bytes | packets | pps } interface interface-type interface-number [ slot slot-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
number: Specifies the number of application statistics entries to be displayed. The value range is 1 to 4294967295.
bytes: Sorts application protocols by traffic size in bytes.
bps: Sorts application protocols by traffic rate in bps.
packets: Sorts application protocols by traffic size in packet count.
pps: Sorts application protocols by traffic rate in pps.
interface interface-type interface-number: Specifies an interface by its type and number.
slot slot-number: Specifies a card by its slot number. This option is available only for global interfaces, such as VLAN interfaces and tunnel interfaces.
Usage guidelines
This command displays application statistics only after the application statistics feature is enabled on the specified interface. Disabling the application statistics feature on the interface deletes the existing statistics.
The system uses the sum of inbound and outbound statistics to rank the application protocols. If the sum statistics for multiple application protocols is the same, the system displays these protocols in alphabetical order.
Examples
# Display the top three application protocols that have received and sent the most packets on GigabitEthernet 1/0/1.
<Sysname> display application statistics top 3 packets interface gigabitethernet 1/0/1
Interface : GigabitEthernet1/0/1
Application In/Out Packets Bytes PPS BPS
Slot 1 :
telnet IN 1389 75219 0 44
OUT 2626 112745 0 54
https IN 468 42830 0 123
OUT 746 626101 0 91
netbios-ns IN 965 88780 2 1411
OUT 0 0 0 0
# Display the top three application protocols that have received and sent the most packets on Vlan-interface 2.
<Sysname> display application statistics top 3 packets interface Vlan-interface 2
Interface : Vlan-interface2
Application In/Out Packets Bytes PPS BPS
Slot 1 :
telnet IN 1389 75219 0 44
OUT 2626 112745 0 54
https IN 468 42830 0 123
OUT 746 626101 0 91
netbios-ns IN 965 88780 2 1411
OUT 0 0 0 0
Table 4 Command output
|
Field |
Description |
|
Interface |
Interface name. |
|
Application |
Name of the application. |
|
In/Out |
Interface direction: · In—Inbound. · Out—Outbound. |
|
Packets |
Number of packets received or sent by the interface. |
|
Bytes |
Number of bytes received or sent by the interface. |
|
PPS |
Packets received or sent per second. |
|
BPS |
Bytes received or sent per second. |
Related commands
app-group
application statistics enable
display apr signature library
Use display apr signature library to display APR signature library information.
Syntax
display apr signature library
Views
Any view
Predefined user roles
network-admin
network-operator
Examples
# Display APR signature library information.
<Sysname> display apr signature library
APR signature library information:
Type SigVersion ReleaseTime Size
Current 1.0.49 Tue Sep 13 06:54:01 2016 659744
Factory 1.0.0 Fri Dec 31 16:00:00 1999 77040
Table 5 Command output
|
Field |
Description |
|
Type |
Version type of the APR signature library: · Current. · Factory. |
|
SigVersion |
Version of the APR signature library. |
|
ReleaseTime |
Release time of the APR signature library. |
|
Size |
Size of the APR signature library, in bytes. |
display port-mapping pre-defined
Use display port-mapping pre-defined to display information about the predefined port-mappings.
Syntax
display port-mapping pre-defined
Views
Any view
Predefined user roles
network-admin
network-operator
Examples
# Display information about all predefined port mappings.
<Sysname> display port-mapping pre-defined
Application Protocol Port
afs3-kaserver TCP 7004
UDP 7004
aol TCP 5190, 5191, 5192, 5193
UDP 5190, 5191, 5192, 5193
appleqtc TCP 458
UDP 458
bgp TCP 179
UDP 179
Table 6 Command output
|
Field |
Description |
|
Application |
Application using the port mapping. |
|
Protocol |
Transport layer protocol. |
|
Port |
Port number of the application. |
Related commands
display port-mapping
port-mapping
display port-mapping user-defined
Use display port-mapping user-defined to display information about the user-defined port mappings.
Syntax
display port-mapping user-defined [ application application-name | port port-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
application application-name: Specifies an application protocol by its name, a case-insensitive string of 1 to 63 characters. Valid characters include digits, letters, hyphens (-), and underscores (_). The names invalid and other are not allowed.
port port-number: Specifies a port by its number, in the range of 0 to 65535.
Usage guidelines
If you do not specify an application protocol or a port number, this command displays all user-defined port mappings on the device.
Examples
# Display all user-defined port mappings on the device.
<Sysname> display port-mapping user-defined
Application Port Protocol Match Type Match Condition
-------------------------------------------------------------
FTP 21 TCP --- ---
FTP 21 UDP IPv4 host 10.10.10.1(vpn1)
FTP 2121 UDP IPv4 host [11.10.10.1, 11.10.10.10](vpn2)
FTP 21 UDP IPv4 subnet 10.10.10.1/24
FTP 21 SCTP IPv6 host 2000:fdb8::1:00ab:853c:39ab
HTTP 899 TCP IPV4 ACL 2002
HTTP 999 SCTP IPv6 ACL 2002
Table 7 Command output
|
Field |
Description |
|
Application |
Application protocol using port mapping. |
|
Port |
Port number to which the application protocol is mapped. |
|
Protocol |
Transport layer protocol. |
|
Match Type |
Match types: · ---—No match types or match conditions are specified, and all packets that have the specified port are recognized as the packets of the specified application protocol. · IPv4 host—A match based on the destination IPv4 addresses of the packet. · IPv6 host—A match based on the destination IPv6 addresses of the packet. · IPv4 subnet—A match based on the destination IPv4 subnet of the packet. · IPv6 subnet—A match based on the destination IPv6 subnet of the packet. · IPv4 ACL—A match based on the IPv4 ACL. · IPv6 ACL—A match based on the IPv6 ACL. |
|
Match Condition |
Match conditions: · For the match type of IPv4 host or IPv6 host, the destination IP addresses of the packets are displayed. · For the match type of IPv4 subnet or IPv6 subnet, the destination subnet addresses of the packets are displayed. · For the match type of IPv4 ACL or IPv6 ACL, the correct ACL number is displayed. For IP address-based and subnet-based host-port mappings, the MPLS L3VPN instance names are displayed if you configured them. |
include application
Use include application to add application protocols to an application group.
Use undo include application to remove application protocols from an application group.
Syntax
include application application-name
undo include application application-name
Default
No application protocols exist in an application group.
Views
Application group view
Predefined user roles
network-admin
Parameters
application-name: Specifies an application protocol by its name, a case-insensitive string of 1 to 63 characters. The names invalid and other are not allowed.
Usage guidelines
Execute this command multiple times to add multiple predefined or user-defined application protocols to an application group. The number of application protocols in an application group is not limited.
If you add a nonexistent application protocol to the application group, the system first creates the protocol before adding it to the application group. Whether the device can recognize the packets of this protocol depends on your configuration.
Examples
# Add HTTP and FTP to group abc.
<Sysname> system-view
[Sysname] app-group abc
[Sysname-app-group-abc] include application http
[Sysname-app-group-abc] include application ftp
Related commands
app-group
copy app-group
integer-signature
Use integer-signature to create an integer-type signature for a user-defined NBAR application rule.
Use undo integer-signature to cancel the signature configuration.
Syntax
integer-signature field field-name { { eq | nequ } number | range start-number to end-number }
undo integer-signature
Default
No integer-type signatures are configured for a user-defined NBAR application rule.
Views
User-defined NBAR application rule view
Predefined user roles
network-admin
Parameters
field field-name: Specifies a protocol field by its name. You can enter a question mark to obtain a list of supported protocol fields.
eq: Matches the protocol field equal to the specified length.
nequ: Matches the protocol field not equal to the specified length.
number: Specifies a protocol field length in the range of 1 to 4294967295 bytes.
range: Specifies a protocol field length range.
start-number: Specifies a start value of the range, in the range of 1 to 4294967294 bytes.
to end-number: Specifies an end value of the range, in the range of 2 to 4294967295 bytes. The end value must be greater than the start value.
Usage guidelines
A packet matches an integer-type signature if the length of the protocol field is matched.
Only one integer-type signature can be configured for a user-defined NBAR application rule.
If you execute this command multiple times, the most recent configuration takes effect.
Examples
# Configure signature 1 in user-defined NBAR application rule 1 to match packets with the length of the HTTP-URL protocol filed as 100.
<Sysname> system-view
[Sysname] nbar user-defined-application abcd
[Sysname-user-defined-app-abcd] rule 1 l4-protocol tcp l5-protocol http pattern-type integer
[Sysname-user-defined-app-abcd-rule-1] integer-signature filed http.uri eq 100
keyword-signature
Use keyword-signature to create a keyword-type signature for a user-defined NBAR application rule and enter keyword-type signature view, or enter the view of an existing keyword-type signature.
Use undo keyword-signature to cancel the signature configuration.
Syntax
keyword-signature signature-id field field-name include { hex hex-vector | text text-string } [ [ offset offset-value ] [ depth depth-value ] ]
undo keyword-signature { signature-id | all}
Default
No keyword-type signatures are configured for a user-defined NBAR application rule.
Views
User-defined NBAR application rule view
Predefined user roles
network-admin
Parameters
signature-id: Specifies the signature ID in the range of 1 to 10.
field field-name: Specifies a protocol field by its name. You can enter a question mark to obtain a list of supported protocol fields.
include: Includes the specified content.
hex hex-vector: Specifies a hexadecimal vector as the match pattern. The hex-vector argument is a string of 8 to 126 characters. The argument must start and end with a vertical bar (|) and must contain an even number of characters, for example, |123456|.
text text-string: Specifies a string as the match pattern. The string argument is a case-sensitive string of 3 to 127 characters.
offset offset-value: Specifies the offset from the beginning of the data field, in bytes. The value range for the offset-value argument is 1 to 65535. A packet matches the signature after the offset. If you do not specify this option, a packet matches the signature from the beginning. If you also specify the field field-name option, the offset begins from the protocol field.
depth depth-value: Specifies the detection depth from the start position, in the range of 3 to 65535 bytes. If you do not specify this option, the whole protocol field is detected.
Usage guidelines
This command can be executed only for a keyword-type NBAR application rule.
If you execute this command multiple times with the same signature ID, the most recent configuration takes effect.
Examples
# Configure signature 1 in user-defined NBAR application rule 1 to define packet match string abcdefg and enter the signature view.
<Sysname> system-view
[Sysname] nbar user-defined-application abcd
[Sysname-user-defined-app-abcd] rule 1 l4-protocol tcp l5-protocol http pattern-type keyword
[Sysname-user-defined-app-abcd-rule-1] keyword-signature 1 filed http.uri include text abcdefg
[Sysname-user-defined-app-abcd-rule-1-signature-1]
Related commands
detection
rule
nbar user-defined-application
Use nbar user-defined-application to create a user-defined NBAR application and enter its view, or enter the view of an existing NBAR application rule.
Use undo nbar user-defined-application to delete a user-defined NBAR application.
Syntax
nbar user-defined-application application-name
undo nbar user-defined-application application-name
Default
No user-defined NBAR applications exist.
Views
System view
Predefined user roles
network-admin
Parameters
application-name: Specifies an application protocol by its name, a case-insensitive string of 1 to 63 characters. The following names are not allowed:
· invalid.
· other.
· Names of predefined application protocols.
Usage guidelines
You can configure rules, match logic among rules, priority, and risk type for an application.
Examples
# Create a user-defined NBAR application named abcd and enter its view.
<Sysname> system-view
[Sysname] nbar user-defined-application app1
[Sysname-user-defined-app-app1]
override-current
Use override-current to overwrite the current signature file for an update operation if the APR signature library is automatically updated at a regular basis.
Use undo override-current to restore the default.
Syntax
override-current
undo override-current
Default
If the APR signature library is automatically updated at a regular basis, the current APR signature file is not overwritten for an update operation. Instead, the device will back up the current APR signature file.
Views
Auto-update configuration view
Predefined user roles
network-admin
Usage guidelines
Use this command only if the device memory is insufficient.
This command disables the APR signature library from being rolled back to the last version. Do not use this command if the device memory is sufficient.
Examples
# Overwrite the current APR signature file for a regular online auto-update operation.
<Sysname> system-view
[Sysname] apr signature auto-update
[Sysname-apr-autoupdate] override-current
Related commands
apr signatures auto-update
port-mapping
Use port-mapping to configure a general port mapping.
Use undo port-mapping to remove a general port mapping.
Syntax
port-mapping application application-name port port-number [ protocol protocol-name ]
undo port-mapping application application-name port port-number [ protocol protocol-name ]
Default
An application is mapped to a common port.
Views
System view
Predefined user roles
network-admin
Parameters
application application-name: Specifies an application by its name. You can enter a question mark to obtain a list of supported applications.
port port-number: Specifies a port by its number, in the range of 0 to 65535.
protocol protocol-name: Specifies a transport layer protocol by its name, including:
· dccp: Specifies DCCP.
· sctp: Specifies SCTP.
· tcp: Specifies TCP.
· udp: Specifies UDP.
· udp-lite: Specifies UDP-Lite.
Usage guidelines
If no transport layer protocol is specified, packets that meet the following conditions are recognized as the specified application's packets:
· Packets are encapsulated by any transport layer protocol.
· Packets have the specified port.
If the destination port of a packet matches a general port mapping, APR recognizes the packet as the specified application's packet.
A mapping with the transport layer protocol specified has a higher priority than one without it.
If two port mappings are configured with the same port number and transport layer protocol, but with different applications, the most recent configuration takes effect.
To change the port number mapped to an application, perform the following tasks:
1. Use the undo port-mapping application command to remove the existing general port mapping.
2. Use the port-mapping application command to specify a different port number for the application.
Examples
# Create a general port mapping of port 3456 to FTP.
<Sysname> system-view
[Sysname] port-mapping application ftp port 3456
Related commands
display port-mapping user-defined
port-mapping acl
Use port-mapping acl to configure an ACL-based host-port mapping.
Use undo port-mapping acl to remove an ACL-based host-port mapping.
Syntax
port-mapping application application-name port port-number [ protocol protocol-name ] acl [ ipv6 ] acl-number
undo port-mapping application application-name port port-number [ protocol protocol-name ] acl [ ipv6 ] acl-number
Default
An application is mapped to a common port.
Views
System view
Predefined user roles
network-admin
Parameters
application application-name: Specifies an application by its name. You can enter a question mark to obtain a list of applications.
port port-number: Specifies a port by its number in the range of 0 to 65535.
protocol protocol-name: Specifies a transport layer protocol by its name, including:
· dccp: Specifies DCCP.
· sctp: Specifies SCTP.
· tcp: Specifies TCP.
· udp: Specifies UDP.
· udp-lite: Specifies UDP-Lite.
acl [ ipv6 ] acl-number: Specifies the number of an ACL, in the range of 2000 to 2999. To specify an IPv6 ACL, include the ipv6 keyword. To specify an IPv4 ACL, do not include the ipv6 keyword. The ACL will not count traffic that matches this ACL-based host-port mapping even if match counting is enabled for the ACL.
Usage guidelines
APR uses ACL-based host-port mappings to recognize packets. A packet is recognized as an application packet when it matches all the following conditions in a mapping:
· The packet's destination IP address matches the specified source IP address defined in the ACL.
· The packet's destination port matches the specified port in the mapping.
· The transport layer protocol that encapsulates the packet matches the specified transport layer protocol if you specify a transport layer protocol in the mapping.
If two port mappings are configured with the same port number, transport layer protocol, and ACL, but with different applications, the most recent configuration takes effect.
A mapping with the transport layer protocol specified has a higher priority than one without it.
Examples
# Create a port mapping of port 3456 to FTP for the packets matching ACL 2000.
<Sysname> system-view
[Sysname] port-mapping application ftp port 3456 acl 2000
Related commands
display port-mapping user-defined
port-mapping host
Use port-mapping host to configure an IP address-based host-port mapping.
Use undo port-mapping host to remove an IP address-based host-port mapping.
Syntax
port-mapping application application-name port port-number [ protocol protocol-name ] host { ip | ipv6 } start-ip-address [ end-ip-address ] [ vpn-instance vpn-instance-name ]
undo port-mapping application application-name port port-number [ protocol protocol-name ] host { ip | ipv6 } start-ip-address [ end-ip-address ] [ vpn-instance vpn-instance-name ]
Default
An application is mapped to a common port.
Views
System view
Predefined user roles
network-admin
Parameters
application application-name: Specifies an application by its name. You can enter a question mark to obtain a list of applications.
port port-number: Specifies a port by its number, in the range of 0 to 65535.
protocol protocol-name: Specifies a transport layer protocol by its name, including:
· dccp: Specifies DCCP.
· sctp: Specifies SCTP.
· tcp: Specifies TCP.
· udp: Specifies UDP.
· udp-lite: Specifies UDP-Lite.
ip: Specifies IPv4 addresses.
ipv6: Specifies IPv6 addresses.
start-ip-address [ end-ip-address ]: Specifies a range of IPv4 or IPv6 addresses. The start-ip-address argument represents the start IP address, and the end-ip-address argument represents the end IP address. To specify only one IP address, provide only the start IP address. To specify a range of IP addresses, provide both the start and end IP addresses, and make sure the end IP address is higher than the start IP address.
vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. If you configure a mapping for the public network, do not specify this option.
Usage guidelines
APR uses IP address-based host-port mappings to recognize packets. A packet is recognized as an application packet when it matches all the following conditions in a mapping:
· The packet is destined for the specified IP address or IP subnet in the mapping.
· The packet's destination port matches the specified port in the mapping.
· The transport layer protocol that encapsulates the packet matches the specified transport layer protocol if you specify a transport layer protocol in the mapping.
No overlapping of IP addresses is tolerable for the host-port mappings configured with the same application, port number, and transport layer protocol.
If two port mappings are configured with the same port number, transport layer protocol, and IP address or IP address ranges, but with different applications, the most recent configuration takes effect.
A mapping with the transport layer protocol specified has a higher priority than one without it.
Examples
# Create a mapping of port 3456 to FTP for the IPv4 packets sent to the host at 1.1.1.1 to 1.1.1.10.
<Sysname> system-view
[Sysname] port-mapping application ftp port 3456 host ip 1.1.1.1 1.1.1.10
# Create a mapping of port 3456 to FTP for the IPv6 packets sent to 1::1.
<Sysname> system-view
[Sysname] port-mapping application ftp port 3456 host ipv6 1::1
Related commands
display port-mapping user-defined
port-mapping subnet
Use port-mapping subnet to configure a subnet-based host-port mapping.
Use undo port-mapping subnet to remove a subnet-based host-port mapping.
Syntax
port-mapping application application-name port port-number [ protocol protocol-name ] subnet { ip ipv4-address { mask-length | mask } | ipv6 ipv6-address prefix-length } [ vpn-instance vpn-instance-name ]
undo port-mapping application application-name port port-number [ protocol protocol-name ] subnet { ip ipv4-address { mask-length | mask } | ipv6 ipv6-address prefix-length } [ vpn-instance vpn-instance-name ]
Default
An application is mapped to a common port.
Views
System view
Predefined user roles
network-admin
Parameters
application application-name: Specifies an application by its name. You can enter a question mark to obtain a list of applications.
port port-number: Specifies a port by its number, in the range of 0 to 65535.
protocol protocol-name: Specifies a transport layer protocol by its name, including:
· dccp: Specifies DCCP.
· sctp: Specifies SCTP.
· tcp: Specifies TCP.
· udp: Specifies UDP.
· udp-lite: Specifies UDP-Lite.
ip ipv4-address { mask-length | mask }: Specifies an IPv4 subnet.
· The ipv4-address argument specifies the IPv4 network address.
· The mask-length argument specifies the mask length of the IPv4 subnet, in the range of 1 to 32.
· The mask argument specifies the subnet mask in dotted decimal notation.
ipv6 ipv6-address prefix-length: Specifies an IPv6 subnet. The ipv6-address argument specifies the IPv6 network address, and the prefix-length argument specifies the length of the IPv6 prefix, in the range of 1 to 128.
vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. If you configure a mapping for the public network, do not specify this option.
Usage guidelines
APR uses subnet-based host-port mappings to recognize packets. A packet is recognized as an application packet when it matches all the following conditions in a mapping:
· The packet is destined for the specified IP subnet in the mapping.
· The packet's destination port matches the specified port in the mapping.
· The transport layer protocol that encapsulates the packet matches the specified transport layer protocol if you specify a transport layer protocol in the mapping.
If multiple subnet-based mappings are applied to packets and these subnets overlap, APR matches the packets destined for the overlapped segment with the port mapping of the subnet that has the smallest range.
If two port mappings are configured with the same port number, transport layer protocol, and subnet, but with different applications, the most recent configuration takes effect.
A mapping with the transport layer protocol specified has a higher priority than one without it.
Examples
# Create a mapping of port 3456 to FTP for the packets sent to the IPv4 hosts on subnet 1.1.1.0/24.
<Sysname> system-view
[Sysname] port-mapping application ftp port 3456 subnet ip 1.1.1.0 24
# Create a mapping of port 3456 to FTP for the packets sent to the IPv6 hosts on subnet 1:: /120.
<Sysname> system-view
[Sysname] port-mapping application ftp port 3456 subnet ipv6 1:: 120
Related commands
display port-mapping user-defined
priority
Use priority to set a priority for a user-defined NBAR application.
Use undo priority to restore the default.
Syntax
priority priority-level
undo priority
Default
No priority is configured for a user-defined NBAR application.
Views
User-defined NBAR application view
Predefined user roles
network-admin
Parameters
priority-level: Specifies a priority in the range of 1 to 255. The greater the priority value, the higher the priority.
Usage guidelines
When a packet matches multiple applications with different priorities, the application with the highest priority applies. When a packet matches multiple applications with the same priority, the application first configured applies.
If you execute this command multiple times, the most recent configuration takes effect.
Examples
# Set the priority to 201 for user-defined NBAR application abcd.
<Sysname> system-view
[Sysname] nbar user-defined-application abcd
[Sysname-user-defined-app-abcd] priority 201
reset application statistics
Use reset application statistics to clear application statistics for interfaces.
Syntax
reset application statistics [ interface interface-type interface-number ]
Views
User view
Predefined user roles
network-admin
Parameters
interface interface-type interface-number: Specifies an interface by its type and number. If you do not specify an interface, this command clears application statistics for all interfaces.
Examples
# Clear application statistics for GigabitEthernet 1/0/1.
<Sysname> reset application statistics interface gigabitethernet 1/0/1
# Clear application statistics for all interfaces.
<Sysname> reset application statistics
Related commands
application statistics enable
display application statistics
risk type
Use risk type to configure a risk type for a user-defined NBAR application.
Use undo risk type to remove a risk type of a user-defined NBAR application.
Syntax
risk type risk-type
undo risk type [ risk-type ]
Default
A user-defined NBAR application does not have any risk type.
Views
User-defined NBAR application view
Predefined user roles
network-admin
Parameters
risk-type: Specifies a risk type by its name. You can enter a question mark (?) to obtain a list of supported risk types.
Usage guidelines
You can configure this command multiple times to specify multiple risk types for a user-defined NBAR application. The more risk types a user-defined NBAR application has, the higher risk level the application has. You can configure protection policies (such as a security policy) according to the risk level.
If you do not specify a risk type when executing the undo risk type command, all risk types of the user-defined NBAR application are removed.
Examples
# Configure risk type Misoperation for user-defined NBAR application app1.
<Sysname> system-view
[Sysname] nbar user-defined-application app1
[Sysname-user-defined-app-app1] risk type Misoperation
rule
Use rule to configure a rule for a user-defined NBAR application and enter the rule view, or enter the view of an existing user-defined NBAR application rule.
Use undo rule to delete a user-defined NBAR application rule.
Syntax
rule rule-id l4-protocol l4-protocol-name l5-protocol l5-protocol-name pattern-type { keyword | integer }
undo rule { rule-id | all }
Default
No user-defined NBAR application rules exist.
Views
User-defined NBAR application view
Predefined user roles
network-admin
Parameters
rule-id: Specifies a rule ID in the range of 1 to 8. The smaller the priority value, the higher the priority.
l4-protocol l4-protocol-name: Specifies a Layer 4 protocol (transport layer protocol) by its name. You can enter a question mark (?) to obtain a list of supported Layer 4 protocols.
l5-protocol l5-protocol-name: Specifies a Layer 5 protocol (application layer protocol) by its name. You can enter a question mark (?) to obtain a list of supported Layer 5 protocols.
pattern-type: Specifies a pattern type.
keyword: Specifies the keyword type.
integer: Specifies the integer type.
all: Specifies all rules.
Usage guidelines
You can configure multiple rules for a user-defined NBAR application. The match logic among multiple rules is configured by using the rule match-logic command.
To modify the contents of rule, you must delete the rule and create a new rule.
Examples
# Create rule 1 for user-defined NBAR application myapp.
<Sysname> system-view
[Sysname] nbar user-defined-application myapp
[Sysname-user-defined-app-myapp] rule 1 l4-protocol tcp l5-protocol http pattern-type keyword
[Sysname-user-defined-app-myapp-rule-1]
rule match-logic
Use rule match-logic to configure the rule match logic of a user-defined NBAR application.
Use undo rule match-logic to restore the default.
Syntax
rule match-logic { and | or }
undo rule match-logic
Default
The rule match logic of a user-defined NBAR application is OR.
Views
User-defined NBAR application view
Predefined user roles
network-admin
Parameters
and: Specifies logic AND.
or: Specifies logic OR.
Usage guidelines
When the match logic is AND, a packet matches a user-defined NBAR application if it matches all rules of the application. When the match logic is OR, a packet matches a user-defined NBAR application if it matches any one of the rules of the application.
If you execute this command multiple times, the most recent configuration takes effect.
Examples
# configure the rule match logic of user-defined NBAR application myapp as AND.
<Sysname> system-view
[Sysname] nbar user-defined-application myapp
[Sysname-user-defined-app-myapp] rule match-logic and
source address
Use source address to specify a source IP address or subnet as a match criterion in a user-defined NBAR application rule.
Use undo source address to restore the default.
Syntax
source address ip ipv4-address [ mask-length ]
undo source address
Default
A user-defined NBAR rule matches packets sourced from all IP addresses.
Views
User-defined NBAR application rule view
Predefined user roles
network-admin
Parameters
ip ipv4-address: Specifies a source IPv4 address or IPv4 subnet, in dotted decimal notation.
mask-length: Specifies the mask length for IPv4 addresses, in the range of 0 to 32.
Usage guidelines
If you execute this command multiple times for the same NBAR rule, the most recent configuration takes effect.
Examples
# Configure user-defined NBAR rule 1 to match packets sourced from IPv4 subnet 192.168.2.0/24.
<Sysname> system-view
[Sysname] nbar user-defined-application abcd
[Sysname-user-defined-app-abcd] rule 1 l4-protocol tcp l5-protocol http pattern-type keyword
[Sysname-user-defined-app-abcd-rule-1] source address ip 192.168.2.0 24
source port
Use source port to specify a source IP address or subnet as a match criterion in a user-defined NBAR application rule.
Use undo source port to restore the default.
Syntax
source port { port-num | range start-port to end-port }
undo source port
Default
A user-defined NBAR rule matches packets sourced from all port numbers.
Views
User-defined NBAR application rule view
Predefined user roles
network-admin
Parameters
port-num: Specifies a source port number, in the range of 0 to 65535.
range: Specifies a source port range.
start-port: Specifies a start port number, in the range of 0 to 65534.
to end-port: Specifies an end port number, in the range of 1 to 65535. The end port number must be greater than the start port number.
Usage guidelines
If you execute this command multiple times, the most recent configuration takes effect.
Examples
# Configure user-defined NBAR rule 1 to match packets from a port number in the range of 2001 to 2004.
<Sysname> system-view
[Sysname] nbar user-defined-application abcd
[Sysname-user-defined-app-abcd] rule 1 l4-protocol tcp l5-protocol http pattern-type keyword
[Sysname-user-defined-app-abcd-rule-1] source port range 2001 to 2004
update schedule
Use update schedule to set the update schedule for automatic update, including the update interval and update time.
Use undo update schedule to restore the default.
Syntax
update schedule { daily | weekly { fri | mon | sat | sun | thu | tue | wed } } start-time time tingle minutes
undo update schedule
Default
The device automatically updates the APR signature library between 02:01:00 to 04:01:00 every day.
Views
Auto-update configuration view
Predefined user roles
network-admin
Parameters
daily: Specifies the daily update interval.
weekly: Specifies the weekly update interval. You can specify one day in a week for the update:
· fri: Specifies Friday.
· mon: Specifies Monday.
· sat: Specifies Saturday.
· sun: Specifies Sunday.
· thu: Specifies Thursday.
· tue: Specifies Tuesday.
· wed: Specifies Wednesday.
start-time time: Specifies the start time for the update, in the format of hh:mm:ss. The value range for the time argument is 00:00:00 to 23:59:59.
tingle minutes: Specifies the tolerance time in minutes. The value range for the minutes argument is 0 to 120 minutes. An automatic update will occur at a time point between the following time points:
· Start time minus half of the tolerance time.
· Start time plus half of the tolerance time.
For example, if the specified start time is 01:00:00 and the tolerance time is 60 minutes, the update starts during the period from 00:30:00 to 01:30:00.
Usage guidelines
Examples
# Configure the device to automatically update the APR signature library at 23:10:00 every Monday with a tolerance time of 10 minutes.
<Sysname> system-view
[Sysname] apr signature auto-update
[Sysname-apr-autoupdate] update schedule weekly mon start-time 23:10:00 tingle 10
Related commands
apr signature auto-update
