From: Rahmlow, Howard F. (howard.rahmlow@xxxxxxxxxx)
Date: Sun Feb 04 2001 - 18:51:06 GMT-3
Sounds like you are having fun.
Spids, if need should placed on the Phyical interface. If you need them in
the lab they will tell you. I know if you are going to Halifax, you will
need them.
Dont know about the dialer-map statments on the profile - I have always just
used the dialer string.
Both in the ECP1 class, and the ASET labs. It was recomened to put the PPP,
and PPP Auth in both locations. Differnt version of the IOS seem to want all
different options. Use both and be safe.
In the lab the question will tell you if you need to use profiles, or
legacy. If they tell you to back up a DCI, for IP. But IPX has to flow all
the time, you know its a profile. You may also get a question that tells you
to backup a serial interface with the least number of commands. Legacy,
HDLC, and a dial string
Good luck, and relax.
Howard
-----Original Message-----
From: Brian Hescock [mailto:bhescock@cisco.com]
Sent: Sunday, February 04, 2001 4:28 PM
To: ccielab@groupstudy.com
Subject: isdn (numerous questions)
No problems with legacy ddr but dialer-profiles and the contradictions I'm
coming across are driving me crazy (4 days to go).
- 99% of the sample configs show no spids under bri0 in the config when
using dialer profiles. I couldn't get it to work without adding spids
when using dms100. Any idea why? (might be a bug, I could see one side
dial and the other side keep coming up and dropping but I couldn't dial
from the other side at all. both sides dial fine when adding the spids so
it shouldn't have been a config issue).
- one of the big advantages of dialer profiles is you don't need dialer
maps. But I see them used in some sample configs. When would you need to
use dialer maps when using dialer-profiles and why?
- which is correct, putting ppp authentication under the physical
interface, the dialer interface, or both? The sample configs I've seen
aren't consistent at all.
- a lot of sample labs I've run across asking you to configure isdn
so that it comes up when a directly connected interface goes down. Backup
interface comes to mind but that supposedly causes problems when using
legacy DDR, you can't use the isdn link for anything else then. So far
lab purposes I would assume its safest to always use dialer profiles,
correct? The reason I say this is you never know what you might get on
Day 2 and something on Day 2 could require use of the isdn link but you
might already be using it as a backup interface and therefore it won't
work for the other purpose.
Another option I suppose would be to use dialer watch instead of backup
interface so we don't tie up the isdn link and we can get away with using
legacy ddr instead of dialer profiles.
Brian
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