10-19
Cisco 10000 Series Router Software Configuration Guide
OL-2226-23
Chapter 10 Configuring Address Pools
Overlapping IP Address Pools
IP Overlapping Address Pools for VPNs and VRFs Example
The following example is a general IP address configuration that VPNs and VRFs might use. This
example shows pool names that provide a way to associate a pool name with a VPN (when the pool name
stands alone). This association is an operational convenience. There is no required relationship between
the names used to define a pool and the name of the group. In this example:
•
Pool group vpn1 consists of pools p1_vpn1, p2_vpn1, and p3_vpn1.
•
Pool group vpn2 consists of pools p1_vpn2, p2_vpn2.
•
Pools lp1 and lp2 are members of the base system.
•
The IP address 10.1.1.1 overlaps vpn1, vpn2, and the base system group.
•
No overlapping addresses occur within any group including the unnamed base system group, which
consists of pools lp1 and lp1.
ip local pool p1_vpn1 10.1.1.1 10.1.1.50 group vpn1
ip local pool p2_vpn1 10.1.1.100 10.1.1.110 group vpn1
ip local pool p1_vpn2 10.1.1.1 10.1.1.40 group vpn2
ip local pool lp1 10.1.1.1 10.1.1.10
ip local pool p3_vpn1 10.1.2.1 10.1.2.30 group vpn1
ip local pool p2_vpn2 10.1.1.50 10.1.1.70 group vpn2
ip local pool lp2 10.1.2.1 10.1.2.10
