Mailing List Archive: ADSL RBE and DHCP

Hi,

I'm somewhat new to RBE and also to Cisco's DHCP server implementation,
and I'm not turning up any good examples on CCO.

I currently have all of my ADSL subs (covad is the DCLEC, one pvc per
customer) terminating on a 7206. Each sub has a subinterface, ie:

in atm 2.0/1999 point-to-point (where 1999 is the VCI, for convenience)
ip unnumbered loopback 4
atm route-bridge ip
pvc 0/1999
encaps aal5snap

and then a static route pointing to the interface:

ip route 192.168.1.2 255.255.255.255 atm 2/0.1999

That all works fine, but I am curious if this is how other people are
doing this, as I am chewing up one interface per ADSL sub.

My other question is bringing DHCP into the mix. I swore that at some
point I found a doc on CCO that described a way to do "static" DHCP
assignments based not on MAC address, but on what pvc the request comes in
on. Is this possible? How are most of you handling this? Do you use the
IOS DHCP server or forward off to another box? Or buy a Redback? :)

Thanks,

Charles

--
Charles Sprickman
spork@inch.com

RBE is probably not a scalable way to do it.. You might want to look at
pppoe..

Last time I heard you need to send it off to a radius server that
cares/reads the interface portion. It does require some hacking.

Also no matter what you will need a sub interface. I personally use
ilmi-pvc-autodiscover to create my vcs dynamically but then again, I am my
own dlec :).

Mark

--
Mark Segal
Director, Network Planning
FCI Broadband
Tel: 905-284-4070
Fax: 416-987-4701
http://www.fcibroadband.com

Futureway Communications Inc. is now FCI Broadband

-----Original Message-----
From: Charles Sprickman [mailto:spork@inch.com]
Sent: June 27, 2003 6:58 PM
To: cisco-bba@puck.nether.net
Subject: [cisco-bba] ADSL RBE and DHCP

Hi,

I'm somewhat new to RBE and also to Cisco's DHCP server implementation, and
I'm not turning up any good examples on CCO.

I currently have all of my ADSL subs (covad is the DCLEC, one pvc per
customer) terminating on a 7206. Each sub has a subinterface, ie:

in atm 2.0/1999 point-to-point (where 1999 is the VCI, for convenience) ip
unnumbered loopback 4 atm route-bridge ip pvc 0/1999
encaps aal5snap

and then a static route pointing to the interface:

ip route 192.168.1.2 255.255.255.255 atm 2/0.1999

That all works fine, but I am curious if this is how other people are doing
this, as I am chewing up one interface per ADSL sub.

My other question is bringing DHCP into the mix. I swore that at some point
I found a doc on CCO that described a way to do "static" DHCP assignments
based not on MAC address, but on what pvc the request comes in on. Is this
possible? How are most of you handling this? Do you use the IOS DHCP
server or forward off to another box? Or buy a Redback? :)

Thanks,

Charles

--
Charles Sprickman
spork@inch.com

_______________________________________________
cisco-bba mailing list
cisco-bba@puck.nether.net http://puck.nether.net/mailman/listinfo/cisco-bba