Deployment Guide

Border Gateway Protocol IPv4 (BGPv4) | 365
To return to the default setting, use the no neighbor {ip-address | peer-group-name}
next-hop-self command.
Parameters
Defaults
Disabled.
Command Modes
ROUTER BGP
Usage
Information
If the set next-hop command in the ROUTE-MAP mode is configured, its configuration takes
precedence over the neighbor next-hop-self command.
Command
History
neighbor password
c e s
Enable Message Digest 5 (MD5) authentication on the TCP connection between two neighbors.
Syntax
neighbor {ip-address | peer-group-name} password [encryption-type] password
To delete a password, use the no neighbor {ip-address | peer-group-name} password command.
Parameters
Defaults
Not configured.
Command Modes
ROUTER BGP
Usage
Information
In C-series, for an authenticated bgp neighbor session, when a peer goes down during HA (fail-over/
Switchover), the session will be re-established automatically only after hold-down time is expired at
peer side.
This command automatically restarts the neighbor session for the configuration to take effect.
Configure the same password on both BGP peers or a connection does not occur. When you configure
MD5 authentication between two BGP peers, each segment of the TCP connection between them is
verified and the MD5 digest is checked on every segment sent on the TCP connection.
Configuring a password for a neighbor will cause an existing session to be torn down and a new one
established.
ip-address
Enter the IP address of the neighbor in dotted decimal format.
peer-group-name
Enter the name of the peer group.
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced support on C-Series
ip-address Enter the IP address of the router to be included in the peer group.
peer-group-name
Enter the name of a configured peer group.
encryption-type (OPTIONAL) Enter 7 as the encryption type for the password entered. 7
means that the password is encrypted and hidden.
password Enter a text string up to 80 characters long. The first character of the password
must be a letter.
You cannot use spaces in the password.