28
Predefined user roles
network-admin
Parameters
ip-address: Specifies the IP address of the interface, in dotted decimal notation.
mask-length: Specifies the subnet mask length in the range of 1 to 31. For a loopback interface, the
value range is 1 to 32.
mask: Specifies the subnet mask in dotted decimal notation.
irf-member member-id: Assigns an IP address to the management Ethernet port of the specified IRF
member device. The member-id argument specifies an IRF member device by its member ID. The
value range for the member-id argument is 1 to 10.
sub: Assigns a secondary IP address to the interface.
Usage guidelines
Use the command to assign a primary or secondary IP address to an interface.
An interface can have only one primary IP address. A newly configured primary IP address
overwrites the previous address. If the interface connects to multiple subnets, configure primary and
secondary IP addresses on the interface so the subnets can communicate with each other through
the interface.
You cannot assign secondary IP addresses to an interface that obtains an IP address through
BOOTP, DHCP, or IP unnumbered.
If you do not specify any parameters, the undo ip address command removes all IP addresses from
the interface. The undo ip address ip-address { mask | mask-length } command removes the
primary IP address. The undo ip address ip-address { mask | mask-length } sub command removes
a secondary IP address.
The primary and secondary IP addresses assigned to the interface can be located on the same
network segment. Different interfaces on your device must reside on different network segments.
The IP addresses assigned to the management Ethernet ports of all IRF member devices must be in
the same subnet. In an IRF fabric, only the IP address assigned to the management Ethernet port of
the master takes effect. Make sure no IP address conflict exists when you assign IP addresses to the
management Ethernet ports of subordinates. The system does not warn of an IP address conflict
because the IP addresses assigned to the management Ethernet ports of subordinates do not take
effect. After an IRF fabric split, the IP addresses assigned to the management Ethernet ports of the
new masters (original subordinates) take effect.
Examples
# Assign VLAN-interface 10 a primary IP address 129.12.0.1 and a secondary IP address
202.38.160.1, with subnet masks both 255.255.255.0.
<Sysname> system-view
[Sysname] interface vlan-interface 10
[Sysname-Vlan-interface10] ip address 129.12.0.1 255.255.255.0
[Sysname-Vlan-interface10] ip address 202.38.160.1 255.255.255.0 sub
Related commands
display ip interface
display ip interface brief
ip address unnumbered
Use ip address unnumbered to configure the current interface as IP unnumbered to borrow an IP
address from the specified interface.
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