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Beginner

iBGP do not ping from OUTSIDE

Hi there,

The problem: i have my BGP AS, and i make ibgp peering between R1<->SW<->R2 and i am using  for this my BGP AS network segment. In general this is dual multihoming. R1 - my main router. R2 - backup. at my SW - there are my BGP AS which presents like a vlans. 

The question is:

When my R1 is UP -> i can't ping SW iBGP ip. 

When R1 goes down and R2 is main router - the ping is accept.

Configs:

R1-

router bgp AS
bgp log-neighbor-changes
network x.x.x.x mask 255.255.252.0
timers bgp 15 45
neighbor x.x.x.2 remote-as AS -iBGP  peer
neighbor x.x.x.2 next-hop-self
neighbor x.x.x.3 remote-as AS - iBGP  peer
neighbor x.x.x.3 next-hop-self
neighbor x.x.x.x remote-as AS - eBGP peer
neighbor x.x.x.x soft-reconfiguration inbound
neighbor x.x.x.x route-map ISP1_in in
neighbor x.x.x.x route-map ISP2_out out

R2-

router bgp AS
bgp log-neighbor-changes
network x.x.x.x mask 255.255.252.0
neighbor x.x.x.x remote-as AS
neighbor x.x.x.x soft-reconfiguration inbound
neighbor x.x.x.x route-map ISP2_in in
neighbor x.x.x.x route-map ISP2_out out
neighbor x.x.x.1 remote-as AS - iBGP  peer
neighbor x.x.x.3 remote-as AS - iBGP  peer

SW-

router bgp AS
timers bgp 15 45
neighbor x.x.x.x remote-as AS
neighbor x.x.x.x update-source Vlan185
neighbor x.x.x.x remote-as AS
neighbor x.x.x.x update-source Vlan185

Everyone's tags (3)
1 REPLY 1
VIP Advisor

Hello

Hello

Do you have a topology , it would make it much easier to understand.

sh ip protocols
sh ip route
sh ip bgp
sh ip bgp sum



res

Paul



kind regards
Paul

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