From: beatccielab (beatccielab@gmail.com)
Date: Thu Mar 01 2007 - 06:42:37 ART
Hi All..
I have a problem with my configuration BGP multihomed that connect
to two ISP with two local router. Link Router(A)-ISP(A) is used to
dedicated only for mail access, and link Router(B)-ISP(B) is used
to browsing access internet for user internal only.
if link Router(A)-ISP(A) is fail then for access to mail server is
automaticality switch to ISP B. But if link B is fail
not allowed to use ISP A.
Note: fast0/0 of Router(A) is connect to
Firewall(A) and fast0/0 of Router(B) is connect to Firewall(B). between
Firewall(A) and Firewall(B) is set failover.
I was configure between Router(A) and Router(B) peering as iBGP and
Router(A) to ISP A and Router(B) to ISP B is peering eBGP,
and setting for policy routing for incoming policy is use local_preference
and for outgoing is use as-path prepend.
After i was configure like that, but unfortunately not running properly.
i found is several problem :
- if router(A) or Link to ISP A is fail cannot switch access the mail
server via ISP B
- if Router(B) or link to ISP B is fail is internal user can to reach
internet access via ISP A.
- if FW(A) is fail (Router(A) and link is not fail) then access to
mail server cannot be reach via
ISP(B).
please advice to me to fix this problem. thank u very much for your help.
-- Regards, beatccielab
This archive was generated by hypermail 2.1.4 : Sun Apr 01 2007 - 06:35:49 ART