RE: Routing preferences question
Depending on the scale of what you are trying to accomplish, you can also change the prefix length of the route. If you have a local static route that is a /20, you can route two /21's in OSPF. Most of the suggestions I have seen are options, but other mechanisms should be used because the scalability of these solutions are very limited. John Senkow -----Original Message----- From: Timothy R. McKee [mailto:tim@baseworx.net] Sent: Thursday, January 30, 2003 9:00 AM To: nanog@merit.edu Subject: RE: Routing preferences question You have to change the admin distances. Unfortunately for you, I don't think there is a way to change the admin distance for a connected interface which has a default of zero. Anyone know of a selective way to do that? OSPF is 110 by default, statics are 1 by default, but you can set their distance on a per route basis, 'ip route x.x.x.x y.y.y.y v.v.v.v distance'. What exactly are you trying to do? There may be other mechanisms to accomplish what you want. Tim McKee -----Original Message----- From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of william@elan.net Sent: Thursday, January 30, 2003 2:38 To: nanog@merit.edu Subject: Routing preferences question Hi, Does anybody know how/if I can force cisco router to consider ospf route (I'll consider other igp protocol if its possible) from particular source to be prefereble over connected and locally-entered static routes. This is needed for failover project I'm doing. Please note that especially big question is with "connected" route through subinterface, which I can't find any way to override with igp, for static I could at least make them learned igp routes. I'd apprecitate to know how somebody has done something this or at least find for sure that its impossible. If it matters, I'm trying to do it on 7500 running 12.0 ios and interfaces are ethernet isl vlans. --- William Leibzon Elan Communications william@elan.net
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Senkow, John - CIPS