From: Pun, Alec CL (Alec.CL.Pun@pccw.com)
Date: Mon Dec 29 2003 - 23:52:19 GMT-3
I agree with you that dialer-group should take away or deny OSPF since it
will always bring up the line.
But if we configure dialer watch on both ends, once the watched route
disappear, both side will make call at the same time !! Isn't that is not
suggested by Cisco ?
rgds,
alec
-----Original Message-----
From: Danny.Andaluz@triaton-na.com [mailto:Danny.Andaluz@triaton-na.com]
Sent: Tuesday, December 30, 2003 3:43 AM
To: Pun, Alec CL; ccielab@groupstudy.com
Subject: RE: dialer-watch question
I didn't see the part about both routers dialing. Configure dialer watch on
both then.
IP won't trigger the call if you're running Dialer-watch, so again, it
shouldn't matter. EIGRP and OSPF use MC addresses to communicate back and
forth (224.0.0.10 and 224.0.0.5 respectively). This is included in IP.
I would include a "dialer-group <list number>" with a "dialer-list <list
number> protocol ip permit". I was just pointing out how it does not use
this dialer-list traffic to initiate a call.
Danny
-----Original Message-----
From: Pun, Alec CL [ mailto:Alec.CL.Pun@pccw.com
<mailto:Alec.CL.Pun@pccw.com> ]
Sent: Monday, December 29, 2003 1:22 PM
To: Andaluz, Danilo, Triaton/NA; ccielab@groupstudy.com
Subject: RE: dialer-watch question
Danny,
Some questions
1) What if both routers can initiate ISDN calls ?
2) Understand that dialer-watch itself is an interesting traffic. But if we
don't deny OSPF hello, won't it always kick up the line ? I just want to
know if it is a MUST to either remove the dialer-group or deny OSPF/EIGRP
hello when using dialer-watch together.
rgds,
alec
-----Original Message-----
From: Danny.Andaluz@triaton-na.com [ mailto:Danny.Andaluz@triaton-na.com
<mailto:Danny.Andaluz@triaton-na.com> ]
Sent: Tuesday, December 30, 2003 2:15 AM
To: Pun, Alec CL; ccielab@groupstudy.com
Subject: RE: dialer-watch question
I would say configure Dialer-Watch only on the calling router. Only the
calling router needs to have this configured.
As far as the OSPF hello's, it shouldn't matter. Dialer-Watch is watching
for the loss of a route. That is the "interesting" traffic, not IP traffic.
I have tested dialer-watch with no dialer-group configured on the BRI or
Dialer interface. It works fine. Try it.
HTH,
Danny
-----Original Message-----
From: Pun, Alec CL [ mailto:Alec.CL.Pun@pccw.com
<mailto:Alec.CL.Pun@pccw.com> < mailto:Alec.CL.Pun@pccw.com
<mailto:Alec.CL.Pun@pccw.com> > ]
Sent: Monday, December 29, 2003 11:41 AM
To: ccielab@groupstudy.com
Subject: dialer-watch question
Hi group,
R1 ---- ISDN ------ R2
| |
|----------FR-----------|
Both R1 and R2 can make ISDN calls and the topology is running OSPF. My
question is if dialer-watch is used to watch the remote loopback, is it
necessary
1) to configure dialer-watch on both routers ?
2) deny ospf hello in the dialer-list for BOTH routers ?
rgds,
alec
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