From: Jim Graves (jtg@xxxxxxxxxx)
Date: Thu Apr 26 2001 - 21:24:33 GMT-3
First off, one typical scenerio (well, I'm not sure it's *typical*) is when
you want different protocol traffic to behave differently. For example,
you might want to have the link as a backup interface for IP, but available
full-time for IPX traffic. You can't do that with just a BRI -- the BRI
goes into standby mode when it's made the backup interface. Thus, you'd
need dialer profiles.
Anyway, my take on this problem is that the receiving end is probably
having trouble mapping the incoming call to a dialer interface. Do a
"debug dialer" (I think) and look at what happens when the call comes
in. The receiving router should have a "dialer remote-name" under each
dialer interface that matches a hostname command on the calling router
(which, come to think of it, is another part of the requirement for this
setup: the calling router needs to look like it has a different name when
each interface is calling. For example, it might be "r1-ip" for the ip
side, and d"r1-ipx" for the ipx side. I don't have a router at hand
[shocking and horrifying, I know] to find the exact command, but I think
it's "ppp chap username foo" to make a dialing interface use that as its
username instead of the router name.)
Here's a config (again, this is from memory, so I may be horking something
badly) where dialer profiles are used between r1 and r2. r1 is the calling
router. Suppose router 2's B channels are 5552001 and 5552002.
r1:
username r2 password cisco
!
int bri0
encap ppp
ppp auth chap
dialer pool-member 1
!
int Dialer 1
desc IP interface
ip address 10.1.1.1 255.255.255.0
encap ppp
ppp auth chap
dialer-group 1
dialer pool 1
dialer remote-name Meaningless
dialer string 5552001
!
int Dialer 2
desc IPX interface
ipx netw BAA
encap ppp
ppp auth chap
ppp chap username r1-ipx
dialer-group 2
dialer pool 1
dialer remote-name Blahblahblah
dialer string 5552002
!
dialer-list 1 proto ip permit
dialer-list 2 proto ipx permit
r2:
username r1 password cisco
username r1-ipx password cisco
!
int bri0
encap ppp
ppp auth chap
dialer pool-member 1
!
int Dialer 1
desc IP interface
ip address 10.1.1.2 255.255.255.0
encap ppp
ppp auth chap
dialer-group 1
dialer pool 1
dialer remote-name r1
!
int Dialer 2
desc IPX interface
ipx netw BAA
encap ppp
ppp auth chap
dialer-group 2
dialer pool 1
dialer remote-name r1-ipx
!
dialer-list 1 proto ip permit
dialer-list 2 proto ipx permit
I think that's it. Let me know if it works.
(My practice rack is off-line right now, since the NM-8A/S in what was my
frame switch died. Ow.)
At 11:11 AM 4/26/2001 -0700, Mas Kato wrote:
>Indeed... Perhaps the protocols need to go to two different
>destinations?
>
>Dan, it sounds like the IPX dialer interface has decided that the
>traffic is interesting, has allocated a B-channel and initiated the
>dial. Do 'debug isdn q931,' 'debug ppp negotiation' and 'debug ppp
>authentication' reveal anything interesting?
>
>Regards,
>
>Mas Kato
>
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
>Chris Mott
>Sent: Thursday, April 26, 2001 6:36 AM
>To: CCIE; Dan Skiptunas
>Subject: RE: ISDN and Dialer profiles
>
>
>why not use both IPX and IP on the same Dialer interface? that's the
>way I
>would do it .. the main reason for multiple dialers is multiple
>destinations, not multiple protocols ... perhaps there's something in
>the
>design of your lab that dictates this, I dunno ... does anyone else know
>about this?
>
>
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
>Dan Skiptunas
>Sent: Thursday, April 26, 2001 11:20 AM
>To: ccielab@groupstudy.com
>Subject: ISDN and Dialer profiles
>
>
> I am trying to use dialer interfaces to allow 1 bri to be used to
>support
>IP on 1 dialer interface and IPX on the other. When I configure dialer
>interface 0 for IP everything works fine when I add dialer interface 1
>with
>IPX address the connection connects for 1 or 2 seconds than disconnects
>this
>is happening for both interfaces I have tried using different dialer
>pool
>but this has had no effect. When I remove int dialer 1 , dialer 0
>returns
>to normal. Does some have a config that works or know what I am
>missing ?
>
> Dan Skiptunas
> Network Engineer
> NEC-BNS
> Office :203-461-9200 ex.421
> Pager : 888.672.8636
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