Deployment Guide

Border Gateway Protocol IPv4 (BGPv4) | 359
To return to the default value, use the no neighbor {ip-address | peer-group-name} allowas-in
command.
Parameters
Defaults
Not configured.
Command Modes
ROUTER BGP
Usage
Information
You cannot set this configuration for a peer that is associated with a peer group. Similarly, you cannot
associate a peer to a peer group if that peer is already configured with these settings.
Related
Commands
Command
History
neighbor default-originate
c e s
Inject the default route to a BGP peer or neighbor.
Syntax
neighbor {ip-address | peer-group-name} default-originate [route-map map-name]
To remove a default route, use the no neighbor {ip-address | peer-group-name}
default-originate command.
Parameters
Defaults
Not configured.
Command Modes
ROUTER BGP
Usage
Information
If you apply a route map to a BGP peer or neighbor with the neighbor default-originate command
configured, the software does not apply the set filters in the route map to that BGP peer or neighbor.
When you configure a route-map for a BGP peer or peer group with the neighbor default-originate
command, the command checks for the existence of the route in BGP RIB.
Route-map configuration on a BGP peer or peer group works only when the LOC-RIB contains at least
one route.
ip-address
Enter the IP address of the neighbor in dotted decimal format.
peer-group-name
Enter the name of the peer group to set the advertisement interval for all routers
in the peer group.
number
Enter a number of times to allow this neighbor ID to use the AS path.
Range: 1 to 10.
bgp four-octet-as-support Enable 4-Byte support for the BGP process.
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced on C-Series and E-Series
ip-address
Enter the IP address of the neighbor in dotted decimal format.
peer-group-name
Enter the name of the peer group to set the default route of all routers in that peer
group.
route-map
map-name
(OPTIONAL) Enter the keyword route-map followed by the name of a
configured route map.