[cisco-bba] External DHCP server doesn't work well for PPPoX customer on Cisco 7206VXR when DHCP address pool constrained

[Frank Bulk]

Agreed.  Except what you described is a different scheme than the other
technologies I listed, and the primary reason I moved DHCP off the BRAS was
to converge a point of management.

If I was only a DSL shop I'm pretty sure I would be using the internal DHCP
server.  In fact, for my dialup users I do pretty much you've described.

Frank

-----Original Message-----
From: Robert Blayzor [mailto:rblayzor at inoc.net] 
Sent: Sunday, October 21, 2007 1:19 AM
To: frnkblk at iname.com
Cc: cisco-bba at puck.nether.net
Subject: Re: [cisco-bba] External DHCP server doesn't work well for PPPoX
customer on Cisco 7206VXR when DHCP address pool constrained

Frank Bulk wrote:
> Well, there is some benefit, but I'll admit that I debated it myself.  By
> using an external DHCP server the help desk person manage all my DHCP
pools
> from one user interface.  He's not familiar with Cisco gear, but now he
can
> manage the space for BWA, CM, eMTAs, IP TV, and DSL.

The same thing can be done with RADIUS VSA's and pre-configured pools in
the router.

> Using an external DHCP server also allows me to log DHCP traffic and
> requests.  When I get an abuse report about a certain IP address I can use
> the dhcpd.leases file (I keep some history) to identify the source of the
> abuse (the username is in the uid).

The same can be done with RADIUS accounting packets.

--
Robert Blayzor
INOC
rblayzor at inoc.net
http://www.inoc.net/~rblayzor/

The opinions expressed herein are not necessarily those of my employer,
not necessarily mine, and probably not necessary.