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Thread Index [isp-bgp] Re: configure customer prefixes
XZ> Date: Wed, 19 May 2004 17:50:30 -0400 XZ> From: Xiaoliang Zhao XZ> [W]e want to configure a BGP router so that it only announces XZ> its customers' prefixes but not its peers' prefixes. Now, my XZ> question is what is the best current practice to identify an XZ> AS numbers as a customer ASN or a peer ASN Scrub all BGP communities at route ingress points, save for the ones you want people to send you. Set communities based on if the network is customer/peer. At egress points, you may block peer/upstream routes from being sent. Note that this does not prevent someone from sending traffic to your peers/upstreams if the routes are in the table. For this, people usually put peers on separate routers (or use VRFs). ACLs are not really suitable for this task. Eddy -- EverQuick Internet - http://www.everquick.net/ A division of Brotsman & Dreger, Inc. - http://www.brotsman.com/ Bandwidth, consulting, e-commerce, hosting, and network building Phone: +1 785 865 5885 Lawrence and [inter]national Phone: +1 316 794 8922 Wichita _________________________________________________________________ DO NOT send mail to the following addresses : blacklist@... -or- alfra@intc.net -or- curbjmp@intc.net Sending mail to spambait addresses is a great way to get blocked. To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with.
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