prefix-length
To specify the length of the prefix that is assigned to the client, use the prefix-length command in IPv6
configuration submode. To remove the length of the prefix, use the no form of this command.
prefix-length prefix_length
no prefix-length prefix_length
Syntax Description
Specifies the length of the prefix.
prefix_length
Command Default
None
Command Modes
Pool IPv6 configuration
Command History
ModificationRelease
This command was introduced.Release 4.3.0
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task
IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator
for assistance.
Use the pool ipv6 command to enter ipv6 pool configuration submode.
The prefix-length command under the pool ensures all the prefixes (described in the prefix-range section)
in the pool have the same length. The prefix-length command must be configured when the network and the
prefix-length commands are used.
Task ID
OperationTask ID
read, writeip-services
Examples
This is an example of configuring the prefix-length command in the IPv6 configuration submode:
RP/0/RSP0/CPU0:router# configure
RP/0/RSP0/CPU0:router(config)# pool vrf vrf1 ipv6 pool3
RP/0/RSP0/CPU0:router(config-pool-ipv6)# prefix-length 50
Cisco ASR 9000 Series Aggregation Services Router Broadband Network Gateway Command Reference,
Release 5.2.x
86
Address Pool Service Commands
prefix-length
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