I think I have reached my 'rule' actually. In a normal situation, I would want the Internet ASBRs injecting default routes on area 0, as that is where everything is passing through anyway. This assumes a 'clean' environment where the only things being routed in the OSPF AS are private addresses. If I had a 'messier' situation where public addresses were being used in the OSPF AS, and generally existed on the edges of the network, I may want to place the Internet ASBRs against these areas rather than area 0.
""Howard C. Berkowitz"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... >Yes, it is an Internet ASBR, there are others, and its only purpose is to >advertise a default route + local DMZ into OSPF. The ASBR would get a >default route from BGP. In turn the ISP is advertising a default route via >BGP into the outside router. The plan is that if the ISP stops advertising >at this point, then the default route advertisement from one of the other >ISP connection points will take over. I see it that it really depends on >how much equipment is between the real backbone and the ISP connection. Can I assume, then, that you only want one active access point at a given time, OR that you want any given area to take the closest default based on OSPF internal cost? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=62164&t=61823 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
