Yes, you are correct I have decided to go for my CCIE:Security and need some practice before the lab exam. My only choices for multi-homing at home are T1s/DS3s... And cable. I already have a 3-T1 setup where the Class C block is homed now. This is my main business line and hosts my DNS, Web, Mail servers and VPN connections. The ISP I use is has punched a hole in their Class B to allow my Class C block to leak through. At some point I may get a business class cable line. But since I do not know if what I am doing will violate Roadrunner's AUP and/or cause them to disconnect me, I decided to go with the $29.95 special. My ISP already peers with Level3, and Roadrunner peers with Level3 (AS3356) and AOL (AS 1668). My goal is to block all routes via Roadrunner/Level3 and force all inbound and outbound traffic via Roadrunner to go through AS 1668 only. Edward W. Ray -----Original Message----- From: Mike Damm [mailto:symetrix@gmail.com] Sent: Wednesday, November 02, 2005 12:22 PM To: spam Subject: Re: FW: Using BGP to force inbound and outbound routing through particular routes Let me see if I understand what you are saying... You have a real network with routers, T1 lines, all that jazz. And you'd like to multihome with a cable modem? Right? -Mike On 11/2/05, spam <spamjail@mmicman.com> wrote:

I recently made a request to get a cable modem connection at my home. I went for one of those $29.95 for three month specials in case I run afoul of some rules prohibiting what I am going to do. I already have a multi-T1 connection with a Class C block and BGP running on my Cisco 3640 router, and was looking to become multi-homed. The cable connection is via bridge/DHCP cable modem, and was going to hook it up to the Cisco 3640. I have already done the research and know from what block of IP addresses I will be assigned, and the BGP route

tables/peers.

I would like to use BGP to force inbound and outbound routing only through particular peers, Sprint (AS 1239) and UUNET (AS 701). I have been reading "Practical BGP" by Whate, McPherson and Sangli and this appears to be possible. However, do my adjacent routers need to support BGP in order for this to work? Could I use other routing protocols to accomplish this, or would this require knowledge of all

possible downstream router IP addresses?

Edward W. Ray