
Configuring and Customizing BGP
303528-A Rev 00
8-51
Configuring Peers over an Unnumbered Point-to-Point Link
You cannot configure a BGP peer-to-peer session directly on an unnumbered
interface. To establish a connection, each side of the connection must be
associated with a numbered interface.
For example, consider the two routers in Figure 8-4
. Routers A and B are
connected by a point-to-point network using unnumbered interfaces. Both routers
are configured with BGP.
Figure 8-4. BGP over an Unnumbered Point-to-Point Link
Network 1
Point-to-Point
network
Network 3
Router A
Router B
Numbered IP interface configured for a BGP
peer-to-peer connection
Unnumbered IP interface
Peer-to-Peer
connection
Key
IP0049A
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