From: wwwjjang@chol.com
Date: Mon Aug 04 2003 - 10:53:41 GMT-3
This is my diagram
(L0 1.1.1.1)--R1-(e0 2.2.2.1)--(e0 2.2.2.2)-R3-(L0 3.3.3.3)
|
(s1 4.4.4.1)
Assumtion>
-R3 has a only D/R to the 2.2.2.1
-R1 has no routing to the R3's L0 (3.3.3.3)
-R1 has a D/R to the S1(4.4.4.1)
-R1 is in BGP-AS2
-R3 is in BGP-AS1
Question>
-when i config the EBGP between R1 & R2, use loopbacks as the update-source
on both routers R1 & F2
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My solution
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i use a Local Policy Based Routing to make a route to the R3's L0(3.3.3.3)
R1>
---router bgp 2 bgp log-neighbor-changes neighbor 3.3.3.3 remote-as 1 neighbor 3.3.3.3 ebgp-multihop 255 neighbor 3.3.3.3 update-source Loopback0 !
ip local policy route-map POL ! access-list 111 permit icmp host 1.1.1.1 host 3.3.3.3 access-list 111 permit tcp host 1.1.1.1 host 3.3.3.3 ! route-map POL permit 10 match ip address 111 set ip next-hop 2.2.2.2
----- R2 -----
router bgp 1 bgp log-neighbor-changes neighbor 1.1.1.1 remote-as 2 neighbor 1.1.1.1 ebgp-multihop 255 neighbor 1.1.1.1 update-source Loopback0 !
==>When i send a ping to the R3's L0(3.3.3.3) with a source ip R1's Lo(1.1.1.1) , it's OK !! but the EBGP-session is not established.. How should i do ????
R1#sh ip bgp summ BGP table version is 1, main routing table version 1
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 3.3.3.3 4 1 0 0 0 0 0 never Active
R3#sh ip bgp summ BGP table version is 1, main routing table version 1
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 1.1.1.1 4 2 0 1 0 0 0 never Active
Wheh i do "debug ip bgp" on R1..**** =>R1# 1d02h: BGP: 3.3.3.3 multihop open delayed 17632ms (no route)
Person who knows the solution...Please Help me!!!
Thanks..
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