Re: EBGP and IBGP

From: Kyle Galusha (kgalusha@xxxxxxxxx)
Date: Fri Apr 14 2000 - 18:05:10 GMT-3


   
   You'll need more than next hop self.You have two choices: One is no
   sync, the other is make the next hop address reachable via
   redistribution BGP into IGP.
   Hope this make sense,
   Kyle
   At 03:29 PM 4/14/2000 -0700, Michael Needham wrote:
>OSPF still has to know the route to the next HOP BGP router. IF you
   add
>next hop self on the routers connected to the rest of the world it
>should be OK. Otherwise ensure that OSPF knows how to get to the next
>hop router (next BGP neighbour).
>
>Cliff Webster wrote:
>>
>> In the Lab I am doing BGP a scenario with 6 routers in a straight
   line. I
>> take 2 of the middle routers and do IBGP. The outside routers are
   doing
>> EBGP only. I have been under the impression that if I am using an
   IGP like
>> OSPF between the two internal routers, the protocols will
   synchronize on
>> their own (OSPF and IBGP), and EBGP routes will be passed. When I
   do this,
>> my routes will not propagate past the IBGP section in either
   direction. The
>> end EBGP systems are not exchanging routes. If I go to the two
   IGBP routers
>> and type NO SYNC. Everything works fine. Shouldn't OSPF and IBGP
   sync up
>> on there own- without the NO SYNC command?
>>
>> I am studying from the Bruce Caslow book. It is not real clear on
   the
>> subject.
>>
>> Thank you,
>> Cliff Webster



This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 08:23:13 GMT-3