Contents

Object group commands· 1

description· 1

display object-group· 1

display object-group host 3

network (IPv4 address object group view) 4

network (IPv6 address object group view) 5

object-group· 7

object-group dns-aging· 8

port (port object group view) 9

 

Object group commands

description

Use description to configure a description for an object group.

Use undo description to restore the default.

Syntax

description text

undo description

Default

No description is configured for an object group.

Views

Object group view

Predefined user roles

network-admin

Parameters

text: Specifies a description, a case-sensitive string of 1 to 127 characters.

Examples

# Configure the description as This is an IPv4 object-group for an IPv4 address object group.

<Sysname> system-view

[Sysname] object-group ip address ipgroup

[Sysname-obj-grp-ip-ipgroup] description This is an IPv4 object-group

display object-group

Use display object-group to display information about object groups.

Syntax

display object-group [ { { ip | ipv6 } address | port } [ default ] [ name object-group-name ] | name object-group-name ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

ip address: Specifies the IPv4 address object groups.

ipv6 address: Specifies the IPv6 address object groups.

port: Specifies the port object groups.

default: Specifies the default object groups.

name object-group-name: Specifies an object group by its name, a case-insensitive string of 1 to 31 characters.

Examples

# Display information about all object groups.

<Sysname> display object-group

IP address object group obj1: 0 object(in use)

 

IP address object group obj2: 6 objects(out of use)

0 network host address 1.1.1.1

10 network host name host

20 network subnet 1.1.1.1 255.255.255.0

30 network range 1.1.1.1 1.1.1.2

 

IPv6 address object-group obj3: 0 object(in use)

 

IPv6 address object-group obj4: 5 objects(out of use)

0 network host address 1::1:1

10 network host name host

20 network subnet 1::1:0 112

30 network range 1::1:1 1::1:2

 

Port object-group obj7: 0 object(in use)

 

Port object-group obj8: 3 objects(out of use)

0 port lt 20

10 port range 20 30

# Display information about object group obj2.

<Sysname> display object-group name obj2

IP address object-group obj2: 5 objects(out of use)

0 network host address 1.1.1.1

10 network host name host

20 network subnet 1.1.1.1 255.255.255.0

30 network range 1.1.1.1 1.1.1.2

# Display information about all IPv4 address object groups.

<Sysname> display object-group ip address

IP address object-group obj1: 0 object(in use)

 

IP address object-group obj2: 5 objects(out of use)

0 network host address 1.1.1.1

10 network host name host

20 network subnet 1.1.1.1 255.255.255.0

30 network range 1.1.1.1 1.1.1.2

# Display information about IPv6 address object group obj4.

<Sysname> display object-group ipv6 address name obj4

IPv6 address object-group obj4: 5 objects(out of use)

0 network host address 1::1:1

10 network host name host

20 network subnet 1::1:0 112

30 network range 1::1:1 1::1:2

Table 1 Command output

Field	Description
in use	The object group is used by an ACL or object group.
out of use	The object group is not used.

 

display object-group host

Use display object-group host to display IPv4 or IPv6 addresses for host names.

Syntax

display object-group { ip | ipv6 } host { object-group-name object-group-name | name host-name [ vpn-instance vpn-instance-name ] } * [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

object-group-name object-group-name: Specifies an object group by its name, a case-insensitive string of 1 to 31 characters. If you do not specify this option, the command displays information about the specified host name.

name host-name: Specifies a host by its name, a case-insensitive string of 1 to 60 characters. If you do not specify this option, the command displays information about all the included and excluded host names in the specified object group.

vpn-instance vpn-instance-name: Specifies the MPLS L3VPN to which the host belongs. The vpn-instance-name argument represents the VPN instance name, a case-sensitive string of 1 to 31 characters. If the host resides on the public network, do not specify this option.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays information for all cards.

Examples

# Display IPv4 addresses for host name www.a.example.com in object group group1.

[Sysname] display object-group ip host object-group-name group1 name www.a.example.com

Object group       : group1

  Object ID        : 0

    Host name      : www.a.example.com

      Updated at   : 2019-05-20 11:04:24

      IP addresses :

        169.0.0.10

        169.0.0.11

# Display IPv6 addresses for all host names in object group group1.

[Sysname] display object-group ipv6 host object-group-name group1

Object group : group1

  Object ID        : 0

    Host name      : www.a.example.com

      Updated at   : 2019-05-20 11:04:24

      IP addresses :

        169:0::0:10

        169:0::0:11

  Object ID        : 10

    Host name      : www.b.example.com

      Updated at   : 2019-05-20 11:04:24

      IP addresses :

        169:0::0:11

        169:0::0:12

Related commands

object-group

network (IPv4 address object group view)

Use network to configure an IPv4 address object.

Use undo network to delete an IPv4 address object.

Syntax

[ object-id ] network { host { address ip-address | name host-name [ vpn-instance vpn-instance-name ] } | subnet ip-address { mask-length | mask } | range ip-address1 ip-address2 }

undo network { host { address ip-address | name host-name [ vpn-instance vpn-instance-name ] } | subnet ip-address { mask-length | mask } | range ip-address1 ip-address2 }

undo object-id

Default

No IPv4 address objects exist.

Views

IPv4 address object group view

Predefined user roles

network-admin

Parameters

object-id: Specifies an object ID in the range of 0 to 4294967294. If you do not specify an object ID, the system automatically assigns the object a multiple of 10 next to the greatest ID being used. For example, if the greatest ID is 22, the system automatically assigns 30.

host: Configures an IPv4 address object with the host address or name.

address ip-address: Specifies an IPv4 host address.

name host-name: Specifies a host name, a case-insensitive string of 1 to 60 characters.

vpn-instance vpn-instance-name: Specifies the MPLS L3VPN to which the host belongs. The vpn-instance-name argument represents the VPN instance name, a case-sensitive string of 1 to 31 characters. If the host resides on the public network, do not specify this option.

subnet ip-address { mask-length | mask }: Configures an IPv4 address object with the subnet address followed by a mask length in the range of 0 to 32 or a mask in dotted decimal notation.

range ip-address1 ip-address2: Configures an IPv4 address object with the address range. The ip-address1 argument specifies the start address and the ip-address2 argument represents the end address.

Usage guidelines

This command fails if you use it to configure or change an IPv4 address object to be identical with an existing object.

This command creates an IPv4 address object if the specified object ID does not exist. Otherwise, the command overwrites the configuration of the specified object.

If you configure a subnet with the mask length of 32 or the mask of 255.255.255.255, the system configures the object with a host address.

When you use the range ip-address1 ip-address2 option, follow these guidelines:

·     If ip-address1 is equal to ip-address2, the system configures the object with a host address.

·     If ip-address1 is not equal to ip-address2, the system compares the two IPv4 addresses, configures a range starting with the lower IPv4 address, and performs the following operations:

¡     Configures the object with an address range if the two addresses are in different subnets.

¡     Configures the object with a subnet address if the two addresses are in the same subnet.

Examples

# Configure an IPv4 address object with the host address of 192.168.0.1.

<Sysname> system-view

[Sysname] object-group ip address ipgroup

[Sysname-obj-grp-ip-ipgroup] network host address 192.168.0.1

# Configure an IPv4 address object with the host name of pc3.

<Sysname> system-view

[Sysname] object-group ip address ipgroup

[Sysname-obj-grp-ip-ipgroup] network host name pc3

# Configure an IPv4 address object with the IPv4 address of 192.167.0.0 and mask length of 24.

<Sysname> system-view

[Sysname] object-group ip address ipgroup

[Sysname-obj-grp-ip-ipgroup] network subnet 192.167.0.0 24

# Configure an IPv4 address object with the IPv4 address of 192.166.0.0 and mask of 255.255.0.0.

<Sysname> system-view

[Sysname] object-group ip address ipgroup

[Sysname-obj-grp-ip-ipgroup] network subnet 192.166.0.0 255.255.0.0

# Configure an IPv4 address object with the address range of 192.165.0.100 to 192.165.0.200.

<Sysname> system-view

[Sysname] object-group ip address ipgroup

[Sysname-obj-grp-ip-ipgroup] network range 192.165.0.100 192.165.0.200

network (IPv6 address object group view)

Use network to configure an IPv6 address object.

Use undo network to delete an IPv6 address object.

Syntax

[ object-id ] network { host { address ipv6-address | name host-name [ vpn-instance vpn-instance-name ] } | subnet ipv6-address prefix-length | range ipv6-address ipv6-address2 }

undo network { host { address ipv6-address | name host-name [ vpn-instance vpn-instance-name ] } | subnet ipv6-address prefix-length | range ipv6-address1 ipv6-address2 }

undo object-id

Default

No IPv6 address objects exist.

Views

IPv6 address object group view

Predefined user roles

network-admin

Parameters

object-id: Specifies an object ID in the range of 0 to 4294967294. If you do not configure an object ID, the system automatically assigns the object a multiple of 10 next to the greatest ID being used. For example, if the greatest ID is 22, the system automatically assigns 30.

host: Configures an IPv6 address object with the host address or name.

address ipv6-address: Specifies an IPv6 host address.

name host-name: Specifies a host name, a case-insensitive string of 1 to 60 characters.

vpn-instance vpn-instance-name: Specifies the MPLS L3VPN to which the host belongs. The vpn-instance-name argument represents the VPN instance name, a case-sensitive string of 1 to 31 characters. If the host resides on the public network, do not specify this option.

subnet ipv6-address prefix-length: Configures an IPv6 address object with the subnet address followed by the prefix length in the range of 1 to 128.

range ipv6-address1 ipv6-address2: Configures an IPv6 address object. The ipv6-address1 argument specifies the start address and the ipv6-address2 represents the end address.

Usage guidelines

This command fails if you use it to configure or change an IPv6 address object to be identical with an existing object.

This command creates an IPv6 address object if the specified object ID does not exist. Otherwise, the command overwrites the configuration of the specified object.

If you configure a subnet address with the prefix length of 128, the system configures the object with a host address.

When you use the range ipv6-address1 ipv6-address2 option, follow these guidelines:

·     If ipv6-address1 is equal to ipv6-address2, the system configures the object with a host address.

·     If ipv6-address1 is not equal to ipv6-address2, the system compares the two IPv6 addresses, configures a range starting with the lower IPv6 address, and performs the following operations:

¡     Configures the object with an address range if the two addresses are in different subnets.

¡     Configures the object with a subnet address if the two addresses are in the same subnet.

Examples

# Configure an IPv6 address object with the host address of 1::1.

<Sysname> system-view

[Sysname] object-group ipv6 address ipv6group

[Sysname-obj-grp-ipv6-ipv6group] network host address 1::1

# Configure an IPv6 address object with the host name of pc3.

<Sysname> system-view

[Sysname] object-group ipv6 address ipv6group

[Sysname-obj-grp-ipv6-ipv6group] network host name pc3

# Configure an IPv6 address object with the IPv6 address of 1:1:1::1 and prefix length of 24.

<Sysname> system-view

[Sysname] object-group ipv6 address ipv6group

[Sysname-obj-grp-ipv6-ipv6group] network subnet 1:1:1::1 24

# Configure an IPv6 address object with the address range of 1:1:1::1 to 1:1:1::100.

<Sysname> system-view

[Sysname] object-group ipv6 address ipv6group

[Sysname-obj-grp-ipv6-ipv6group] network range 1:1:1::1 1:1:1::100

object-group

Use object-group to configure an object group and enter its view, or enter the view of an existing object group.

Use undo object-group to delete an object group.

Syntax

object-group { { ip | ipv6 } address | port } object-group-name

undo object-group { { ip | ipv6 } address | port } object-group-name

Default

Default object groups exist.

Views

System view

Predefined user roles

network-admin

Parameters

ip address: Configures an IPv4 address object group.

ipv6 address: Configures an IPv6 address object group.

port: Configures a port object group.

object-group-name: Specifies an object group name, a case-insensitive string of 1 to 31 characters.

Usage guidelines

The object-group command execution results vary with the specified object group.

·     If the specified group does not exist, the system creates a new object group and enters the object group view.

·     If the specified group exists but the group type is different from that in the command, the command fails.

The undo object-group command execution results vary with the specified object group.

·     If the specified group does not exist, the system executes the command without any system prompt.

·     If the specified group exists and the group type is the same as that in the command, the system deletes the group.

·     If the specified group exists but the group type is different from that in the command, the command fails.

·     If the specified object group is being used by an ACL or object group, the command fails.

Default object groups cannot be deleted.

Examples

# Configure an IPv4 address object group named ipgroup.

<Sysname> system-view

[Sysname] object-group ip address ipgroup

# Configure an IPv6 address object group named ipv6group.

<Sysname> system-view

[Sysname] object-group ipv6 address ipv6group

# Configure a port object group named portgroup.

<Sysname> system-view

[Sysname] object-group port portgroup

object-group dns-aging

Use object-group dns-aging to enable aging of DNS-resolved IP addresses from host names.

Use undo object-group dns-aging to disable aging of DNS-resolved IP addresses from host names.

Syntax

object-group dns-aging [ time aging-time ]

undo object-group dns-aging

 

Default

Aging of DNS-resolved IP addresses from host names is disabled.

Views

System view

Predefined user roles

network-admin

Parameters

time aging-time: Specifies the aging time in the range of 1 to 70000000 minutes. The default value is 120.

Usage guidelines

In load balancing scenarios where one host name maps to several IP addresses, DNS-resolved IP address for a host name changes between these mapping addresses. Upon every change, the object group module notifies relevant policies of the change, which causes policies to submit changes frequently and consumes memory. To resolve this issue, you can enable aging of DNS-resolved IP addresses from host names.

With this feature enabled, the system maintains an IP address group for each host name. If a resolved IP address is not in the group, the system adds the address to the group and notifies relevant policies of the change. If a resolved IP address is in the group, the system does not notify relevant policies.

As a best practice, set the aging time to be longer than the TTL of resolution records on the DNS server.

Examples

# Enable aging of DNS-resolved IP addresses from host names and set the aging time to 5 minutes.

<Sysname> system-view

[Sysname] object-group dns-aging

[Sysname] object-group dns-aging time 5

port (port object group view)

Use port to configure a port object.

Use undo port to delete a port object.

Syntax

[ object-id ] port { { eq | lt | gt } port | range port1 port2 }

undo port { { eq | lt | gt } port | range port1 port2 }

undo object-id

Default

No port objects exist.

Views

Port object group view

Predefined user roles

network-admin

Parameters

object-id: Specifies an object ID in the range of 0 to 4294967294. If you do not specify an object ID, the system automatically assigns the object a multiple of 10 next to the greatest ID being used. For example, if the greatest ID is 22, the system automatically assigns 30.

eq: Configures a port object with a port number equal to the specified port.

lt: Configures a port object with a port number smaller than the specified port.

gt: Configures a port object with a port number greater than the specified port.

port: Specifies a port number in the range of 0 to 65535.

range port1 port2: Configures a port object with a port range. The value range for the port1 and port2 arguments is 0 to 65535.

Usage guidelines

This command fails if you use it to configure or change a port object to be identical with an existing object.

This command creates a port object if the specified object ID does not exist. Otherwise, the command overwrites the configuration of the specified object.

When you use the lt port option, follow these guidelines:

·     The value of port cannot be 0.

·     If the value of port is 1, the system configures the object with a port number of 0.

·     If the value of port is in the range of 2 to 65535, the system configures the object with a port number range of [0, port–1].

When you use the gt port option, follow these guidelines:

·     The value of port cannot be 65535.

·     If the value of port is 65534, the system configures the object with a port number of 65535.

·     If the value of port is in the range of 0 to 65533, the system configures the object with a port number range of [port+1, 65535].

When you use the range port1 port2 option, follow these guidelines:

·     If port1 is equal to port2, the system configures the object with the port number port1.

·     If port1 is smaller than port2, the system configures the object with the port number range.

·     If port1 is greater than port2, the system changes the range to [port2, port1] and configures the object with the changed port number range.

·     If port1 is 0, the range is displayed as lt port2+1.

·     If port2 is 65535, the range is displayed as gt port1–1.

Examples

# Configure a port object with a port number of 100.

<Sysname> system-view

[Sysname] object-group port portgroup

[Sysname-obj-grp-port-portgroup] port eq 100

# Configure a port object with a port number smaller than 20.

<Sysname> system-view

[Sysname] object-group port portgroup

[Sysname-obj-grp-port-portgroup] port lt 20

# Configure a port object with a port number greater than 60000.

<Sysname> system-view

[Sysname] object-group port portgroup

[Sysname-obj-grp-port-portgroup] port gt 60000

# Configure a port object with a port number in the range of 1000 to 2000.

<Sysname> system-view

[Sysname] object-group port portgroup

[Sysname-obj-grp-port-portgroup] port range 1000 2000