Contents

IP addressing configuration commands· 1

display ip interface· 1

display ip interface brief 3

ip address· 4

 

IP addressing configuration commands

display ip interface

Use display ip interface to display IP configuration information about a specific Layer 3 interface or all Layer 3 interfaces.

Syntax

display ip interface [ interface-type interface-number ] [ | { begin | exclude | include } regular-expression ]

Views

Any view

Default command level

1: Monitor level

Parameters

interface-type interface-number: Specifies an interface by its type and number.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

exclude: Displays all lines that do not match the specified regular expression.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Examples

# Display IP configuration information about interface VLAN-interface 1.

<Sysname> display ip interface vlan-interface 1

Vlan-interface1 current state :DOWN

Line protocol current state :DOWN

Internet Address is 1.1.1.1/8 Primary

Broadcast address : 1.255.255.255

The Maximum Transmit Unit : 1500 bytes

input packets : 0, bytes : 0, multicasts : 0

output packets : 0, bytes : 0, multicasts : 0

ARP packet input number:           0

  Request packet:                  0

  Reply packet:                    0

  Unknown packet:                  0

TTL invalid packet number:         0

ICMP packet input number:          0

  Echo reply:                      0

  Unreachable:                     0

  Source quench:                   0

  Routing redirect:                0

  Echo request:                    0

  Router advert:                   0

  Router solicit:                  0

  Time exceed:                     0

  IP header bad:                   0

  Timestamp request:               0

  Timestamp reply:                 0

  Information request:             0

  Information reply:               0

  Netmask request:                 0

  Netmask reply:                   0

  Unknown type:                    0

Table 1 Command output

Field	Description
current state	Current physical state of the interface: ·     Administrative DOWN—The interface is shut down with the shutdown command. ·     DOWN—The interface is administratively up but its physical state is down, which may be caused by a connection or link failure. ·     UP—Both the administrative and physical states of the interface are up.
Line protocol current state	Current state of the link layer protocol: ·     DOWN—The protocol state of the interface is down. ·     UP—The protocol state of the interface is up. ·     UP (spoofing)—The link protocol state of the interface is up, but the link is temporarily set up on demand or does not exist.
Internet Address	IP address of an interface followed by: ·     Primary—A primary IP address. ·     Sub—A secondary IP address. ·     negotiated—A PPP negotiated IP address. ·     unnumbered—An unnumbered IP address. ·     acquired via DHCP—An IP address obtained through DHCP. ·     acquired via BOOTP—An IP address obtained through BOOTP. ·     Cluster—A cluster IP address. ·     Mad—A MAD IP address.
Broadcast address	Broadcast address of the subnet attached to an interface.
The Maximum Transmit Unit	Maximum transmission units (in bytes) on the interface.
input packets, bytes, multicasts output packets, bytes, multicasts	Unicast packets, bytes, and multicast packets received on an interface (statistics start at device startup).
ARP packet input number:   Request packet:   Reply packet:   Unknown packet:	Total number of ARP packets received on the interface (statistics start at device startup): ·     ARP request packets. ·     ARP reply packets. ·     Unknown packets.
TTL invalid packet number	Number of TTL-invalid packets received on the interface (statistics start at device startup).
ICMP packet input number:   Echo reply:   Unreachable:   Source quench:   Routing redirect:   Echo request:   Router advert:   Router solicit:   Time exceed:   IP header bad:   Timestamp request:   Timestamp reply:   Information request:   Information reply:   Netmask request:   Netmask reply:   Unknown type:	Total number of ICMP packets received on the interface (statistics start at device startup): ·     Echo reply packets. ·     Unreachable packets. ·     Source quench packets. ·     Routing redirect packets. ·     Echo request packets. ·     Router advertisement packets. ·     Router solicitation packets. ·     Time exceeded packets. ·     IP header bad packets. ·     Timestamp request packets. ·     Timestamp reply packets. ·     Information request packets. ·     Information reply packets. ·     Netmask request packets. ·     Netmask reply packets. ·     Unknown type packets.

 

display ip interface brief

Use display ip interface brief to display brief IP configuration information about a specific Layer 3 interface or all Layer 3 interfaces.

Syntax

display ip interface [ interface-type [ interface-number ] ] brief [ | { begin | exclude | include } regular-expression ]

Views

Any view

Default command level

1: Monitor level

Parameters

interface-type: Specifies the interface type.

interface-number: Specifies the interface number.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

exclude: Displays all lines that do not match the specified regular expression.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Usage guidelines

If you do not specify the interface type or interface number, this command displays brief IP configuration information about all Layer 3 interfaces.

If you specify only the interface type, this command displays brief IP configuration information about all Layer 3 interfaces of the specified type.

If you specify both the interface type and interface number, this command displays only brief IP configuration information about the specified interface.

Examples

# Display brief IP configuration information about VLAN interfaces.

<Sysname> display ip interface vlan-interface brief

*down: administratively down

(s): spoofing  (l): loopback

Interface          Physical Protocol IP Address      Description

Vlan1              up       up       6.6.6.6         --

Vlan2              up       up       7.7.7.7         VLAN2

Table 2 Command output

Field	Description
*down: administratively down	The interface is administratively shut down with the shutdown command.
(s) : spoofing	Spoofing attribute of the interface. It indicates that an interface may have no link present even when its link layer protocol is displayed up or the link is set up only on demand.
(l) : loopback	Link loopback test supported by PPP and HDLC.
Interface	Interface name.
Physical	Physical state of the interface: ·     *down—The interface is administratively down. That is, the interface is shut down with the shutdown command. ·     down—The interface is administratively up but its physical state is down. ·     up—Both the administrative and physical states of the interface are up.
Protocol	Link layer protocol state of the interface: ·     down—The protocol state of the interface is down. ·     up—The protocol state of the interface is up. ·     up(s)—The protocol state of the interface is up (spoofing). ·     up(l)—The protocol state of the interface is up (loopback). ·     down(l)—The protocol state of the interface is down (loopback).
IP Address	IP address of the interface. If no IP address is configured, two hyphens (--) are displayed.
Description	Interface description information. If no IP address is configured, two hyphens (--) are displayed. At most, 27 characters can be displayed. If there are more than 27 characters, only the first 24 characters and three dots (…) are displayed.

 

Related commands

display ip interface

ip address

Use ip address to assign an IP address and mask to the interface.

Use undo ip address to remove all IP addresses from the interface.

Use undo ip address ip-address { mask | mask-length } to remove the primary IP address.

Use undo ip address ip-address { mask | mask-length } sub to remove a secondary IP address.

Syntax

ip address ip-address { mask-length | mask } [ sub ]

undo ip address [ ip-address { mask-length | mask } [ sub ] ]

Default

No IP address is assigned to any interface.

Views

Interface view

Default command level

2: System level

Parameters

ip-address: Specifies the IP address of interface, in dotted decimal notation.

mask-length: Specifies the subnet mask length, the number of consecutive ones in the mask.

mask: Specifies the subnet mask in dotted decimal notation.

sub: Specifies the secondary IP address for the interface.

Usage guidelines

When assigning IP addresses to an interface, follow these guidelines:

·     You can assign only one primary IP address to an interface.

·     The primary and secondary IP addresses can be located in the same network segment.

·     Before removing the primary IP address, remove all secondary IP addresses.

·     You cannot assign a secondary IP address to the interface that is configured to borrow an IP address through IP unnumbered or obtain one through BOOTP, DHCP, or PPP negotiation.

Examples

# Assign VLAN-interface 1 a primary IP address 129.12.0.1 and a secondary IP address 202.38.160.1 with subnet masks being 255.255.255.0.

<Sysname> system-view

[Sysname] interface vlan-interface 1

[Sysname-Vlan-interface1] ip address 129.12.0.1 255.255.255.0

[Sysname-Vlan-interface1] ip address 202.38.160.1 255.255.255.0 sub

Related commands

display ip interface