From: Jeff Nelson (jnelson@rackspace.com)
Date: Thu Jan 01 2004 - 14:01:21 GMT-3
(cc'ing the list because it is a good lesson/reminder)
It authenticates. I thought after I sent the email that I should have included that, but since I stated that it stays connected until the idle-timeout I assumed it was implied. As practice I should make the dialer map names the same as the username/hostname, but I found that its arbitrary so ....
I didn't know about the manual call and disconnect statements (thank you), I was just initiating interesting traffic and waiting for teardown.
Well, I did what you said, start with the most basic config (i.e. removing ppp encapsulation) and it worked with hdlc. Then I changed it back to ppp and it still worked. Authentication, dialer watch, etc etc.
While I do "officially" hate isdn now. Thank you for reminding me of a principal rule: config check config check.
--jeff
Jonathan Hays(nomad@gfoyle.org)@03/12/31 22:45:
> you wrote:
>
> lab-r2#sh run int bri0/0
> [snip]
> dialer map ip 172.16.12.1 name r1 broadcast 2105550001
> [snip]
> ppp authentication chap
> end
>
> lab-r1#sh run int bri0/0
> [snip]
> dialer map ip 172.16.12.2 name r2 broadcast 2105550002
> [snip]
> ppp authentication chap
> end
>
> = = =
>
> You don't show your dialer-list statements or your "username x password
> y" statements.
>
> 1. Try removing authentication and see if it works. You could also try
> "debug ppp auth" and verify authentication is taking place.
>
> 2. I note that the dialer maps have names "r1" and "r2" but the
> hostnames are "lab-r1" and "lab-r2" which makes me even more suspicious
> that authentication is not configured correctly.
>
> Until you get really good with ISDN, you should build up the config
> piece by piece, as below:
>
> 1. Config the spids and switch type, then test with
> isdn call interface bri0 8358661
> isdn disconnect interface bri0 all
> Note: In future releases this command may be "isdn test call"
>
> 2. Add "dialer-group 1", "dialer map", and "dialer-list 1" and try
> pinging next.
>
> 3. Add ppp and test again.
>
> 4. Add chap or pap.
>
> IMHO "debug isdn q931" is overkill and not helpful in troubleshooting
> unless you have memorized all the picky little details of ISDN operation
> (unlikely unless you have the misfortune to be debugging ISDN every day
> in your work).
>
> You should be able to figure out where the problem is from "sh isdn
> status", "show dialer", "debug ppp auth", and a quick examination of
> your configuration.
>
> HTH,
>
> Jonathan
>
>
-- Jeff Nelson Rackspace Managed Hosting Office: (210) 892 4025 x1601 GnuPG KeyID: 0x7DE7C4E0 @pgp.mit.edu AS Caretaker: 10532 15395 25897 27357 30099
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