Cisco 10000-2P2-2DC Software Guide - Page 289

Feature History for Overlapping IP Address Pools

Page 289 highlights

Chapter 10 Configuring Address Pools Overlapping IP Address Pools The Overlapping IP Address Pools feature is described in the following topics: • Feature History for Overlapping IP Address Pools, page 10-17 • Restrictions for Overlapping IP Address Pools, page 10-17 • Configuration Tasks for Overlapping IP Address Pools, page 10-17 • Verifying Local Pool Groups for IP Overlapping Address Pools, page 10-18 • Configuration Examples for Overlapping IP Address Pools, page 10-18 Feature History for Overlapping IP Address Pools Cisco IOS Release 12.2(4)BZ1 12.3(7)XI1 12.2(28)SB Description This feature was introduced on the Cisco 10000 series router. This feature was integrated into Cisco IOS Release 12.3(7)XI1. This feature was integrated into Cisco IOS Release 12.2(28)SB. Required PRE PRE1 PRE2 PRE2 Restrictions for Overlapping IP Address Pools The software checks for duplicate addresses on a per-group basis. This means that you can configure pools in multiple groups that could have possible duplicate addresses. You should only use this feature in environments such as MPLS VPN where multiple IP address spaces are supported. Configuration Tasks for Overlapping IP Address Pools To configure the IP overlapping address pools feature, configure a local pool group as described in "Configuring a Local Pool Group for IP Overlapping Address Pools". Configuring a Local Pool Group for IP Overlapping Address Pools To configure a local pool group, enter the following command in global configuration mode: Command Router(config)# ip local pool pool-name start-IP [end-IP] [group group-name] [cache-size size] Purpose Configures a group of local IP address pools, gives the group a name, and specifies a cache size. OL-2226-23 Cisco 10000 Series Router Software Configuration Guide 10-17

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10-17
Cisco 10000 Series Router Software Configuration Guide
OL-2226-23
Chapter 10
Configuring Address Pools
Overlapping IP Address Pools
The Overlapping IP Address Pools feature is described in the following topics:
Feature History for Overlapping IP Address Pools, page 10-17
Restrictions for Overlapping IP Address Pools, page 10-17
Configuration Tasks for Overlapping IP Address Pools, page 10-17
Verifying Local Pool Groups for IP Overlapping Address Pools, page 10-18
Configuration Examples for Overlapping IP Address Pools, page 10-18
Feature History for Overlapping IP Address Pools
Restrictions for Overlapping IP Address Pools
The software checks for duplicate addresses on a per-group basis. This means that you can configure
pools in multiple groups that could have possible duplicate addresses. You should only use this feature
in environments such as MPLS VPN where multiple IP address spaces are supported.
Configuration Tasks for Overlapping IP Address Pools
To configure the IP overlapping address pools feature, configure a local pool group as described in
“Configuring a Local Pool Group for IP Overlapping Address Pools”
.
Configuring a Local Pool Group for IP Overlapping Address Pools
To configure a local pool group, enter the following command in global configuration mode:
Cisco IOS Release
Description
Required PRE
12.2(4)BZ1
This feature was introduced on the Cisco 10000 series
router.
PRE1
12.3(7)XI1
This feature was integrated into Cisco IOS Release
12.3(7)XI1.
PRE2
12.2(28)SB
This feature was integrated into Cisco IOS Release
12.2(28)SB.
PRE2
Command
Purpose
Router(config)#
ip local pool
pool-name
start-IP
[
end-IP
] [
group
group-name
] [
cache-size
size
]
Configures a group of local IP address pools, gives the group a
name, and specifies a cache size.