Cisco Cisco IOS Software Release 12.2(33)SXH

© 2007 Cisco Systems, Inc. All rights reserved.

BGP dynamic neighbor support allows Border Gateway Protocol (BGP) peering to a group of remote 
neighbors that are defined by a range of IP addresses. Each range can be configured as a subnet IP 
address. BGP dynamic neighbors are configured using a range of IP addresses and BGP peer groups. 
After a subnet range is configured for a BGP peer group and a TCP session is initiated for an IP address 
in the subnet range, a new BGP neighbor is dynamically created as a member of that group. The new 
BGP neighbor will inherit any configuration for the peer group. The output for three show commands 
has been updated to display information about dynamic neighbors.

Configuration information is included in the “Configuring BGP Neighbor Session Options” module of 
the Cisco IOS IP Routing Protocols Configuration Guide,

at the following URL:

The following sections provide information about this feature:

BGP Dynamic Neighbors

Implementing BGP Dynamic Neighbors Using Subnet Ranges 

Implementing BGP Dynamic Neighbors Using Subnet Ranges: Example

For a complete list of features included in the “Configuring BGP Neighbor Session Options” module, 
see the Feature Information Table located toward the end of the module.

The following commands are new or modified for this feature: