3Com MSR 50, MSR 30 manual Ip address, Related command display ip interface on, 635

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ip address

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

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

View VLAN interface view

Parameter ip-address: IP address of a VLAN interface, in dotted decimal format.

mask: Subnet mask that corresponds to the IP address of a VLAN interface, in dotted decimal format.

mask-length: Length of a sub-net mask, indicated by the number of “1”s, in the range 0 to 32.

sub: Indicates the address is a sub-IP address of the VLAN interface.

Description Use the ip address command to specify the IP address and subnet mask for a VLAN interface.

Use the undo ip address command to remove the IP address and sub-net mask for a VLAN interface.

By default, no IP address is configured.

An interface normally has one IP address. To enable a device to connect to multiple subnets, a maximum of 32 IP addresses can be configured on a VLAN interface, in which one is the primary IP address and all the rest are secondary IP addresses. The total number of IP addresses on a VLAN interface varies by device. Their relationship is illustrated as follows:

■A newly configured main IP address will replace the original one, if there is one.

■Using the undo ip address command without any parameter indicates that all IP addresses will be deleted from the VLAN interface.

■Use the undo ip address ip-address { mask mask-length } command to delete the main IP address.

■Use the undo ip address ip-address { mask mask-length } sub command to delete a sub-interface.

■Note that before deletion of the main IP address you must first delete the sub-IP address.

Related command: display ip interface on page 781.

Example # Specify the IP address as 1.1.0.1, the sub-net mask as 255.255.255.0 for the VLAN interface 1.

<Sysname> system-view

[Sysname] interface vlan-interface 1

[Sysname-Vlan-interface1] ip address 1.1.0.1 255.255.255.0