From: ccie2be (ccie2be@nyc.rr.com)
Date: Tue Jun 28 2005 - 12:16:33 GMT-3
Chris,
You're 100% correct - I am mixing real world with cisco lab world.
For Cisco lab world, I can see using ip unnumbered to reference the loopback
since I highly doubt I would need more than 2 dialer interfaces.
But, while I was at it, I wondered "out loud" about scaling up the number of
dialer interfaces while also not using more ip subnets.
For some reason I can't explain I suspect there's a method of doing this
that I'm not aware of but maybe not.
Thanks, Tim
-----Original Message-----
From: Chris Lewis (chrlewis) [mailto:chrlewis@cisco.com]
Sent: Tuesday, June 28, 2005 11:07 AM
To: ccie2be; Group Study
Subject: RE: Dialer Profiles
Are you mixing up real world deployment concerns with CCIE questions? :)
That's oil and water my friend!
You can unnumber to any interface you want, you are not restricted to
using the loopback, just use an approriate interface to unnumber to if
you need extras.
Chris
-----Original Message-----
From: ccie2be [mailto:ccie2be@nyc.rr.com]
Sent: Tuesday, June 28, 2005 9:40 AM
To: Chris Lewis (chrlewis); 'Group Study'
Subject: RE: Dialer Profiles
Hey Chris,
Thanks for getting back to me on this.
I had thought of using ip unnumbered but I wonder how scalable this is.
If I use ip unnumbered, I assume this has to reference a loopback and
NOT the other dialer interface because if it did reference the other
dialer interface then both dialer interfaces couldn't be active at the
same time.
Do you agree?
But, if it references a loopback and you only have 1 loopback, then
you're limited to a max of 2 dialer interfaces, right?
So, what would you do if you need 3 dialer interfaces?
Thanks again, Tim
-----Original Message-----
From: Chris Lewis (chrlewis) [mailto:chrlewis@cisco.com]
Sent: Tuesday, June 28, 2005 10:00 AM
To: ccie2be; Group Study
Subject: RE: Dialer Profiles
Initial guess would be use backup interface, dialer list for echo and
echo-reply, and use ip unnumbered?
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
ccie2be
Sent: Tuesday, June 28, 2005 8:47 AM
To: Group Study
Subject: Dialer Profiles
Hi guys,
Are there any ways to configure multiple dialer interfaces without
assigning an ip subnet to each dialer interface?
I'm trying to figure out how to fulfill the following requirements:
1. allowed the circuit to come up only if the primary path is down -
don't allow any traffic including pings to bring up the circuit if the
primary is up.
2. Allow pings to bring up the circuit for testing purposes.
3. Do not add any ip addresses
If someone has an example of how this could be configured, I'd be very
grateful.
TIA, Tim
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