You can use IP unnumbered on the 7200 since PPPoE is a point-to-point link. The below link has a really good sample config. It is for a NRP, but the idea is the same.
http://www.cisco.com/warp/public/794/827pppoe_2.html -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Keith Woodworth Sent: Tuesday, February 05, 2002 8:05 PM To: [EMAIL PROTECTED] Subject: IP subnetting on DSlam equipment. [7:34564] Have a question about the above. I feel I understand IP subnetting well enough (CIDR et al.) but something has come up that I dont know how it would work. Our original DSL offering 4.5 yrs ago (which we still have and use) gives the subscriber 3 static IP's. It works by putting the sub on a Vlan, on a Cat5500 w/ two RSM's. A /29 subnet works out by using one each for the RSM's, one for the gateway, 3 for the subscriber. Thats the way it was designed... The last DSL we installed uses PPPoE (evil stuff but seems to work). Now we are on the latest gear (6260 DSlam, 7204 to aggregate) which management wants to give each subscriber a /29 as well but instead of 3 IP's the user will get 5 because of the way the equipment works. I think that is way too many IP's for a residential user I see some cable co's and other DSL providers that provision static IP's say the subscriber gets 1 IP with extra IP's costing $$$. How do they do this w/o subnetting? Do they do something with the CPE device w/regards to filtering or something? I'm kinda wondering how they go about that. Or are they subnetting in some fangled way? We got this equipment working last week and Ive been giving out /30's for the few people we've got on it for testing at the moment as they only have 1 computer in the house anyway. Anyone have an idea on how something like that can be done? Thanks, Keith Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=34589&t=34564 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]