From: Jonathan Stevens (jonathanstevens.net@googlemail.com)
Date: Sat Jan 14 2006 - 15:04:00 GMT-3
Heheh... I know which lab you're doing.
Your bit bucket has an administrative distance.
tj.mitchell wrote:
>Guys -
>
>I have router R7 peered with R3 and R4 as external peers. R3 and R4 are part
>of the same AS as well as R1 and R2. R1 and R2 are in confederation 1 and R3
>R4 confederation 2.
>
>
>
>R7 - AS700
>
>R1,R2,R3,R4 - AS100
>
>
>
>R1,R2 - Confederation 1
>
>R3,R4 - Confederation 2
>
>
>
>
>
>The question is:
>
>Create a bit bucket on R3 and R4 for all no specific routes. Then have R3
>and R4 forward all non-specific routes to AS700.
>
>
>
>On R7 dump all non-specific routes to loopback 0
>
>
>
>Ensure that if R7 is up all non-specific routes are sent to loopback 0, if
>AS700 or loopback0 are available have R3 and R4 dump the non-specific
>routes.
>
>Do this with out using a conditional route injection.
>
>____________________________________________________________________________
>___________________________________
>
>
>
>This sounds fine but so I created a static route on R7 of 0.0.0.0/0 to L0,
>used the network command under BGP for 0.0.0.0/0.
>
>
>
>Next created static-routes on R3 and R4 for 0.0.0.0/0 to Null0 admin 254.
>used the network command under BGP for 0.0.0.0/0.
>
>
>
>It works to a point, at first everything worked fine, then I failed the
>network on R7 loopback0. That removed the route headed for loopback0 of all
>non-specific routes. Which worked great then I reenable the loopback
>interface and the static Null0 won't go away on R3 and R4.
>
>
>
>It won't go away because the Null0 interface is connected.
>
>
>
>How do I change that? According to the help it states to inject the routes
>on R3 and R4 with a lower admin distance than max default.
>
>
>
>I can't see where to do that?
>
>
>
>Thanks
>
>_______________________________________________________________________
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