Re: BGP PEERING ESTABLISHED BUT ROUTES AREN'T SHOWING AS BEST

what platform and IOS version are you using?

3660 and 3725 on GNS have issues with this, suggest using 7200's if this is
the case, I was looking at your next-hop and this is correct & pointing to
an ip-address and not an interface (bgp requires an ip address) so this is
ok

HTH

Tony

On 6 April 2013 20:47, Taio Bone <taiobtnh_at_gmail.com> wrote:

> Hello guys,
>
> Stuck with a problem here. The portion of the diagram with the
> issue(R12--back-to-back frame relay-R6)..
>
> R12 and R6 have an established EBGP connection via their loopbacks.Both
> routers have a static route to each other's loopback address. I advertise
> some prefix from R12,they are received by R6 but aren't showing as best
> path,hence they aren't getting installed in the routing table. Here are the
> relevant sections of the config:
>
> *R6
> interface Loopback1
> ip address 6.6.6.6 255.255.255.0
> ip ospf network point-to-point
> ip ospf 1 area 0
> !
> interface FastEthernet0/0.68
> encapsulation dot1Q 68
> ip address 68.68.68.6 255.255.255.0
> ip ospf 1 area 0
> !
> !
> interface Serial1/0
> ip address 62.62.62.6 255.255.255.0
> encapsulation frame-relay
> no keepalive
> serial restart-delay 0
> frame-relay interface-dlci 602
> !
> router bgp 100
> no synchronization
> bgp log-neighbor-changes
> network 100.100.100.0 mask 255.255.255.0
> timers bgp 20 60 20
> neighbor 1.1.1.1 remote-as 100
> neighbor 1.1.1.1 update-source Loopback1
> neighbor 1.1.1.1 next-hop-self
> neighbor 12.12.12.12 remote-as 54
> neighbor 12.12.12.12 ttl-security hops 5
> neighbor 12.12.12.12 update-source Loopback1
> no auto-summary
> !
> ip forward-protocol nd
> ip route profile
> ip route 12.12.12.0 255.255.255.0 62.62.62.12*
>
>
>
> * R12
> interface Loopback0
> ip address 12.12.12.12 255.255.255.0
> !
> interface Loopback1
> ip address 200.200.1.1 255.255.255.0
> !
> interface Loopback2
> ip address 200.200.2.1 255.255.255.0
> !
> interface Loopback3
> ip address 200.200.3.1 255.255.255.0
> !
> interface Serial1/0
> ip address 62.62.62.12 255.255.255.0
> encapsulation frame-relay
> no keepalive
> serial restart-delay 0
> frame-relay interface-dlci 602
> !
> !
> router bgp 54
> no synchronization
> bgp router-id 12.12.12.12
> bgp log-neighbor-changes
> network 200.200.1.0
> network 200.200.2.0
> network 200.200.3.0
> timers bgp 20 60 20
> neighbor 6.6.6.6 remote-as 100
> neighbor 6.6.6.6 ttl-security hops 5
> neighbor 6.6.6.6 update-source Loopback0
> no auto-summary
> !
> ip forward-protocol nd
> ip route 6.6.6.0 255.255.255.0 62.62.62.6
> !
>
> R12
> Network Next Hop Metric LocPrf Weight Path
> * 100.100.100.0/24 6.6.6.6 0 0 100 i
> *> 200.200.1.0 0.0.0.0 0 32768 i
> *> 200.200.2.0 0.0.0.0 0 32768 i
> *> 200.200.3.0 0.0.0.0 0 32768 i
>
>
> R6
> Network Next Hop Metric LocPrf Weight Path
>
> * 200.200.1.0 12.12.12.12 0 0 54 i
> * 200.200.2.0 12.12.12.12 0 0 54 i
> * 200.200.3.0 12.12.12.12 0 0 54 i
>
>
> *
> There's full layer-2 reachability but the bgp table shows the next hop as
> "inaccessible" even though there exists a route to the next hop in the
> routing table...It's a bit weird for me.*
> *
> *
>
> R6(config-router)#do sh ip bgp 200.200.1.0
>
> BGP routing table entry for 200.200.1.0/24, version 0
> Paths: (1 available, no best path)
> Not advertised to any peer
> 54
> 12.12.12.12 (inaccessible) from 12.12.12.12 (12.12.12.12)
> Origin IGP, metric 0, localpref 100, valid, external
>
> R6(config-router)#do sh ip route 12.12.12.12
> Routing entry for 12.12.12.0/24
> Known via "static", distance 1, metric 0
> Routing Descriptor Blocks:
> * 62.62.62.12
> Route metric is 0, traffic share count is 1
>
> R6(config-router)#do ping 12.12.12.12
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 12.12.12.12, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 8/48/120 ms
> *
>
> Thank you.
>
>
>
> Ty.
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Sat Apr 06 2013 - 21:08:53 ART