Border Gateway Protocol (BGP) supports authentication mechanism using the Message Digest 5 (MD5) algorithm.
When authentication is enabled, any Transmission Control Protocol (TCP) segment belonging to BGP exchanged between the peers is verified and accepted only if authentication is successful.
For authentication to be successful, both the peers must be configured with the same password.
If authentication fails, the BGP neighbor relationship is not being established.
To enable MD5 authentication for BGP, issue the neighbor {ip-address | peer-group-name} password string command under the BGP router configuration mode.
For more information about BGP authentication with an example refer to:
View more Cisco How-To Tutorials
Search 51,599 current Cisco Job openings worldwide!
Brad Reese cofounded BradReese.Com Cisco Refurbished, which enables affordable Cisco networks globally by assuring customer satisfaction with guaranteed one year warranties on both Cisco Repair as well as Refurbished Cisco.
Don't be shy, contact Brad Reese online or call him Toll Free:
866-864-0506
International callers may wish to call Brad by dialing:
850-364-4115
The Leader in Network Knowledge
