Re: OSPF demand circuit and auth issues

From: DAN DORTON (DHSTS68@xxxxxxxxxxxxxxx)
Date: Thu Feb 07 2002 - 15:06:29 GMT-3


   
FYI:

This should prove to be a very usefull link.

http://www.cisco.com/warp/public/104/dcprob.html

It helped me quite a bit.

Kudos to chuck church for that one!

>>> Troy Rader <troy@onenet.net> 02/07/02 11:23AM >>>
I have a couple of questions.

1. With regard to an OSPF demand circuit, should the router on both
sides of
that circuit, retain the neighbor relationship, even after the isdn
line
goes back down? What I'm seeing is 1 side keeping the neighbor, but
the
other side only having that neighbor relationship when the isdn line is
up.
I have 'ip ospf demand' on the bri interfaces on both sides. Which
brings
up another point. I also MUST modify the dialer list to deny ospf or
the
isdn is brought up by OSPF. Under what conditions does everyone see
'ip
ospf demand' NOT work, and then requiring the dialer-list to do what
'ospf
demand' should do, but also having then other bad side affects, like
link
state changes not bringing up the circuit? Is this a config issue, IOS
bug,
etc?

2. I haven't gotten past #1, but wanted to go ahead and ask if anyone
can
elaborate on any known issues. Once I have this ospf demand circuit
working like I think it should, I want to authenticate it. Any issues
with
doing this that anyone can explain?

Thanks in advance.
Troy



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