Your traffic continues to use the BRI because of the IP fast-switching cache
that is enabled by default in IOS. On your BRI interfaces, do this:
int bri x/x
no ip route-cache
You can also use the "backup interface" command on the serial interfaces
instead of floating static routes as you have currently setup. The IP
route-cache can be cleared manually:-
clear ip cache
Note - I believe the route-cache should only be disabled on the BRI
interfaces in this case... can anyone confirm this?
Regards,
Adrian
"Andre Fecteau" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hello,
>
> I have two locations connected by a T1 and ISDN(BRI). The T1 is the
> main and the BRI is
> meant as backup for just in case the T1 fails for some reason. I have
> EIGRP running
> between the T1 with a private addressing scheme. I have a default route
> leading out through
> the BRI interface with a Administrative Distance of 250. The BRI
> interfaces as well as the
> interface leading to the Internet are all passive interfaces so the
> routing info won't leak into
> the internet. I have a default route on the side of the T1 that has an
> interface leading to the
> Internet. Everything works except once I shutdown one of the T1
> interfaces and the BRI
> comes up all the traffic continues to use the BRI even after I bring the
> T1 back online. I
> want the BRI to go down and all traffic to resume using the T1 interface
> for obvious
> reasons. Can anyone tell me what's wrong with my configuration? It
> works, but not
> completely as needed!!! Help!!!
>
> Internet connected router:
> router eigrp 10
> passive-interface Ethernet0/0
> passive-interface BRI1/0
> network X.X.X.X
> no eigrp log-neighbor-changes
> !
> ip nat inside source static X.X.X.X X.X.X.X extendable
> ip nat inside source static X.X.X.X X.X.X.X extendable
> ip nat inside source static X.X.X.X X.X.X.X extendable
> ip nat inside source static X.X.X.X X.X.X.X extendable
> ip nat inside source static X.X.X.X X.X.X.X extendable
> ip nat inside source static X.X.X.X X.X.X.X extendable
> ip classless
> ip route 0.0.0.0 0.0.0.0 X.X.X.X --- To the default gateway internet
> router.
> ip route X.X.X.X X.X.X.X X.X.X.X 250 --- To the other side private.
>
>
> Inside router (other side of T1):
> router eigrp 10
> passive-interface BRI1/0
> network X.X.X.X
> no auto-summary
> no eigrp log-neighbor-changes
> !
> ip classless
> ip route 0.0.0.0 0.0.0.0 X.X.X.X --- To the T1
> ip route X.X.X.X X.X.X.X X.X.X.X 250 --- To the BRI
> no ip http server
>
> Can I fix this problem by redistributing the static routes to eigrp?
> And how do I do it? Cause my attempts have failed, if that's a viable
> option anyway!
>
> Thanks,
> Andre
>
>
>
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