Home Routing BGP Cisco BGP Configuration BGP sample configuration guide - Cisco


More sample configuration is visit www.showipbgp.com.

www.showIPbgp.com

 

Here is the BGP configurations for any possible combination of link layout for BGP. One of case in below chat should be match with your current network layout or your network want to be.

 

Cases ISP "A"
(Line
/Router)
ISP "B"
(Line
/Router)
Uer's
Router
IGP/HSRP/NAT Key Point
Case 1-1 (1/1) - 1 no/no/no > Basic BGP with default route
Case 1-2 (1/1) - 1 no/no/no > Basic BGP with Metric
Case 1-3
(1/1) - 1 no/no/no > Basic BGP with AS prepand
Case 1-4 (1/1) - 1 no/no/no > Basic BGP with Community String
Case 1-5 (1/1) - 1 EIGRP/no/no > Basic BGP with IGP/EIGRP
Case 1-6 (1/1) - 1 IBGP/no/no > Basic BGP with IGP/iBGP
Case 1-7 (1/1) - 1 no/no/Yes > Basic BGP with NAT
Case 1-8 (1/1) - 1 no/no/no > Basic Multi-hop eBGP
Case 2-1 (2/1) - 1 no/no/no > Multi-hop eBGP with load-sharing
Case 2-2 (2/1) - 1 no/no/no > Multi-hop eBGP with Community String
Case 3-1 (2/2) - 1 no/no/no > Shadow/Fail-over/Local-pref
Case 3-2 (2/2) - 1 no/no/no > Dual WAN/Fail-over/AS prepand
Case 3-3 (2/2) - 1 no/no/no > Dual WAN/Community String
Case 4-1 (1/1) (1/1) 1 no/no/no > Dual homed/AS prepand
Case 4-2 (1/1) (1/1) 1 no/no/no > Dual homed/Community String
Case 4-3 (2/2) - 2 no/HSRP/no > Dual homed/AS prepand
Case 4-4 (2/2) - 2 no/HSRP/no > Dual homed/Community String
Case 5-1
(1/1) (1/1) 2 no/HSRP/no > Dual homed/AS prepand
Case 5-2 (1/1) (1/1) 2 no/HSRP/no > Dual homed/Community String
Case 6-3 (1/1) (1/1) 2 EIGRP/no/no > AS prepand
Case 6-4 (1/1) (1/1) 2 OSPF/no/no > AS prepand
**Click Case # in above table in order to see an articles

 

If you see any problems or questions, please feel free to send email us or use Forum.cisconet.com to get fast response.

 

Last Updated (Monday, 18 May 2009 21:16)

 
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