From: Ahmed Mamoor Amimi (mamoor@xxxxxxxx)
Date: Mon Jul 15 2002 - 22:46:45 GMT-3
it will not work either that way by putting the map in local. u surely need
to use the dialer profile or use dialer string if pointing to the bri
interface
-Mamoor
----- Original Message -----
From: Yakout Esmat <yesmat@iprimus.com.au>
To: Brian Dennis <brian@5g.net>; 'Groupstudy' <ccielab@groupstudy.com>
Sent: Tuesday, July 16, 2002 5:10 AM
Subject: RE: Default route over ISDN
> Brian,
>
> I see the logic behind it, and am sure that if I put another mapping
> statement in there it should work, I will try that and post the results.
>
> Or maybe if I use dialer string instead of dialer map.
>
> CHeers
> yakout
>
> -----Original Message-----
> From: Brian Dennis [mailto:brian@5g.net]
> Sent: Tuesday, July 16, 2002 5:51 AM
> To: 'Yakout esmat'; 'Groupstudy'
> Subject: RE: Default route over ISDN
>
>
> Think about it like this. If you tell the router using the "ip route
> 0.0.0.0 0.0.0.0 bri0" command that all networks that aren't explicitly
> in the routing table are directly connected to BRI0, why would you
> expect the router to send them to 192.168.1.1?
>
> With the default route pointing to the interface the router wants to
> send the packet directly to address 10.1.1.1 (the packet's destination).
> Since you don't have a dialer map to the 10.1.1.1 address you are
> getting the encapsulation failed messages. When you point the default to
> the 192.168.1.1 address the router uses the 192.168.1.1 dialer map to
> get to it. As a side note you could also put a dialer map to the
> 10.1.1.1 address and you would have been able to ping it with the
> default route pointing to the BRI0 interface.
>
> What I recommend you doing is getting a "sniffer" and doing this on an
> Ethernet network. Try pointing a static route to an interface and try
> pointing a static route to an IP address of another router. You'll be
> able to see the difference in who the router ARPs for.
>
> Brian Dennis, CCIE #2210 (R&S/ISP Dial)
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Yakout esmat
> Sent: Monday, July 15, 2002 7:01 AM
> To: Groupstudy
> Subject: Default route over ISDN
>
> Any body aware of this problem..
>
> Scenario:
>
> 10.1.1.1/24--[R1]------(192.168.1.0/24)-----[R2]----
> ISDN
>
> 1) R2 is configured with a static default route
>
> Problem:
>
> 1) If the default static route on R2 is pointing to BRI0 interface "ip
> route
> 0.0.0.0 0.0.0.0 bri0", R2 can't ping 10.1.1.1 on R1. Getting
> "encapsulation
> failed" error when debuging ip packets, and R2 can't initiate a dial.
>
> 2) If I cahnge the default to point to next hop instead "ip route
> 0.0.0.0
> 0.0.0.0 192.168.1.1", every thing is sweet
>
> IOS 12.1, legacy ISDN with single dialer map statement is used, IP
> classless
> is on...
>
> I must be missing some thing.
>
> Thanks
>
> Yakout
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