OK, I've got one DS3 from one provider, and a T1 from another. My DS3 comes into router A, and the T1 into router B. Both routers are accessible via ethernet and have both 10.0.0.x IPs and static ones from a provider. I've got a full BGP feed from each provider on each router, and I have the two routers setup in a peer group to receive each others routes from the two providers. I'm running quagga for BGP, so, for example, if I do a "show ip bgp x.x.x.x" it'll show both paths to it from each provider, just like on a Cisco router. My question is, how do I get routers on the same local lan as these two routers to utilize the "best" path found from BGP? And I also want to configure these two routers to be a redundant link, so local lan boxes will always have connectivity, should one provider go down, but I'm not sure how to configure that. Can someone explain what needs to be done for me to accomplish this? Thanks. -- Bubba Parker sysadmin@citynetwireless.net CityNet LLC http://www.citynetinfo.com/
BP> Date: Tue, 6 Jul 2004 19:02:23 -0500 BP> From: Bubba Parker Try going to www.isp-bgp.com and subscribing to that list. It sounds like you want more description than what NANOG would consider useful signal... BP> OK, I've got one DS3 from one provider, and a T1 from They won't balance well. Do you want the T1 for backup only? BP> another. My DS3 comes into router A, and the T1 into router BP> B. Both routers are accessible via ethernet and have both BP> 10.0.0.x IPs and static ones from a provider. I've got a You should configure loopback addresses on your routers, then use something like OSPF to carry the loopbacks. BP> full BGP feed from each provider on each router, and I have BP> the two routers setup in a peer group to receive each others BP> routes from the two providers. That's not the definition of peer group. One configures peer groups like macros to apply BGP neighbor commands to multiple neighbors without retyping everything each time. The routers can talk without peer groups -- and with only two routers, peer groups actually are nothing more than "planning ahead". BP> I'm running quagga for BGP, so, for example, if I do a "show BP> ip bgp x.x.x.x" it'll show both paths to it from each BP> provider, just like on a Cisco router. Irrelevant. BP> My question is, how do I get routers on the same local lan BP> as these two routers to utilize the "best" path found from BP> BGP? And I also want to configure these two routers to be a iBGP BP> redundant link, so local lan boxes will always have BP> connectivity, should one provider go down, but I'm not sure BP> how to configure that. iBGP + HSRP + not nailing your routes to loopback BP> Can someone explain what needs to be done for me to BP> accomplish this? Thanks. Try a Google search for some of the terms I've mentioned. Try isp-bgp archives. DO NOT redistribute externally-learned routes to your providers. Research distribute-list, filter-list, and prefix-list before touching a live router. 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: davidc@brics.com -*- jfconmaapaq@intc.net -*- sam@everquick.net Sending mail to spambait addresses is a great way to get blocked.
participants (2)
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Bubba Parker
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Edward B. Dreger