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Community Member

BGP Next Hop Clarification

I'm having trouble understanding a simple concept.

I'm tracking down the path of a route to a destination across a few routers.  Running BGP/EIGRP/Static Routes.

I look at one of my routers and it tells me that the route is advertised from a router that is physically a few hops away, but according to BGP its the 'next hop'.  How do I really see what the actual next hop for this network is?

 

Sorry for this basic question.

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Cisco Employee

Hi,Routing table (the output

Hi,

Routing table (the output of "show ip route") will let you know the router from which the prefix is learnt/received as nexthop. Incase of BGP, it is possible that the nexthop is multihop away. It normally performs a recusive lookup to check the egress interface.

 

If you want to check the egress interface, you can use "show ipcef <>"

 

-Nagendra

2 REPLIES
Cisco Employee

Hi,Routing table (the output

Hi,

Routing table (the output of "show ip route") will let you know the router from which the prefix is learnt/received as nexthop. Incase of BGP, it is possible that the nexthop is multihop away. It normally performs a recusive lookup to check the egress interface.

 

If you want to check the egress interface, you can use "show ipcef <>"

 

-Nagendra

Community Member

Thanks, I was able to find

Thanks, I was able to find the exiting interface via the show ipcef command.  It shows the physical next hope which is exactly what I was looking for.

 

Thanks!

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