Assuming that ISP2 is not your only provider, and that you are running BGP with them and at least one other provider, one of your BGP routers would peer with there BGP routers and you would accept and pass on their advertisements. You may have to call ISP2 and ask them to accept client's prefixes.
If ISP2 is your only provider and thusly you aren't running BGP then reselling ISP services is probably not a good idea for you. If you insist on doing it though here is how. You need to know client's peer Ip, AS#, and the prefixes they will be announcing. You contact your Isp, have them point a static route for the host Ip of Client's Peer towards your connected interface. Give them Client's peer Ip, AS#, and the prefixes they will be announcing. Your Isp will have to Peer with client using ebgp-multihop through your network. Conversely, Client will have to static host route for your Isp's peer Ip, and ebgp-multihop peer with your Isp. If I was a network engineer for Client, and you presented me with solution number two, I would laugh you out of the building. The complexities this will create in troubleshooting and trying to get issues resolved will be very annoying. Ejay Hire CCNA,CCNP,CCIE Candidate Network Consultant (Available, Cheap!) [EMAIL PROTECTED] 434-591-4564 -----Original Message----- From: Shawn Xu [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 06, 2002 2:29 PM To: [EMAIL PROTECTED] Subject: How to route this ip traffic to pass through [7:34664] Please see the attachment for the scenario. Let's say we are at ISP1, and our upstream is ISP2. We don't have our own IPs,in other words, we got all the ips from ISP2, and we have only static route to ISP2. Now, one client, they have their own public IP block, and they want to connect to ISP1, and use their own IPs. How to route the client's ip traffic to pass through ISP1 and ISP2? Thank you for your help. Shawn _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp. [GroupStudy.com removed an attachment of type application/msword which had a name of ISPIssue.doc] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=34671&t=34664 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
