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Command: ip address <ip-address> <mask> [secondary]
no ip address [<ip-address> <mask>] [secondary]
Function: Set the IP address and mask for the specified VLAN interface; the ―no ip
address <ip address> <mask> [secondary]‖ command deletes the specified IP address
setting.
Parameter: <ip-address> is the IP address in dot decimal format; <mask> is the subnet
mask in dot decimal format; [secondary] indicates the IP configured is a secondary IP
address.
Default: No IP address is configured upon switch shipment.
Command mode: VLAN Interface Mode
Usage Guide: A VLAN interface must be created first before the user can assign an IP
address to the switch.
Example: Set 10.1.128.1/24 as the IP address of VLAN1 interface.
Switch(config)#interface vlan 1
Switch(Config-if-Vlan1)#ip address 10.1.128.1 255.255.255.0
Switch(Config-if-Vlan1)#exit
Switch(config)#
Relative Command: ip bootp-client enable, ip dhcp-client enable
1.3.4 ipv6 address
Command: ipv6 address <ipv6address | prefix-length> [eui-64]
no ipv6 address <ipv6address | prefix-length> [eui-64]
Function: Configure aggregatable global unicast address, site-local address and
link-local address for the interface.
Parameters: <ipv6address> is the prefix of an IPV6 address; <prefix-length>is the
length of the prefix of an IPV6 address, ranging from 3 to 128; eui-64 means that the eui64
interface id of the interface will automatically create an IPV6 address.
Command Mode: Interface Configuration Mode.
Default: None.
Usage Guide: The prefix of an IPV6 address should not be a multicast address, or other
kinds of IPV6 addresses with specific usage. Different layer-three VLAN interfaces are
forbidden to share a same address prefix. As for any global unicast address, the prefix
should be limited in the range from 2001:: to 3fff ::,with a length no shorter than 3. And the
prefix length of a site-local address or a link-local address should not be shorter than 10.
Examples: Configure an IPV6 address at the layer-three interface of VLAN1: set the
prefix as 2001:3f:ed8::99, the length of which is 64.
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