Use the pool ipv4 command to enter IPv4 pool configuration submode and pool ipv6 command to enter IPv6
pool configuration submode.
The prefix-length command must be configured whenever the network command is used. The prefix-length
must be configured to 128 to signify singleton addresses and a smaller value to signify IPv6 prefixes. The
number of addresses or prefixes that can be allocated by DAPS can become huge when this command is used.
The prefix-length command should be configured to a number that limits the number of addresses or prefixes
for each pool to 64K.
The prefix is written as the first address of a network, followed by a slash character (/) , and ends with the
bit-length of the prefix. For example, 192.168.1.0/24 is the prefix of the IPv4 network starting at the given
address, having 24 bits allocated for the network prefix, and the remaining 8 bits reserved for host addressing.
The IPv6 address specification 2001:db8::/32 is a large network with 2
96
addresses, having a 32-bit routing
prefix. In IPv4 the routing prefix is also specified in the form of the subnet mask, which is expressed in
quad-dotted decimal representation like an address. For example, 255.255.255.0 is the network mask for the
192.168.1.0/24 prefix.
The default-router option is supported only for IPv4 pools. The configured default-gateway address is
automatically excluded from allocation to clients, if the address is within the subnet range.
Task ID
OperationTask ID
read, writeip-services
Examples
This is an example of configuring the network command for IPv4:
RP/0/RSP0/CPU0:router# configure
RP/0/RSP0/CPU0:router(config)# pool vrf vrf1 ipv4 pool2
RP/0/RSP0/CPU0:router(config-pool-ipv4)# network 11.11.11.0/24 default-router 11.11.11.11
This is an example of configuring the network command for IPv6:
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)# network 10:1:1::/50
Related Commands
DescriptionCommand
Enables distributed address pool service on ipv4.pool ipv4, on page 92
Enables distributed address pool service on vrf.pool vrf, on page 90
Specifies the length of the prefix that is assigned to
the client.
prefix-length, on page 86
Cisco ASR 9000 Series Aggregation Services Router Broadband Network Gateway Command Reference, Release
5.2.x
85
Address Pool Service Commands
network (BNG)
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