I'm just going to assume you're running standard areas everywhere. While it is supposedly possible to summarize on the ABR with summary-address, I prefer to use summary-address on the ASBR that is doing the redistribution.
area range is used for summarizing that area's networks into the backbone area as such: area4_abr(config-router)#area 0 range 192.168.0.0 255.255.255.0 (summarizes from area4 into area0) foo_abr(config-router)#area foo range 192.168.0.0 255.255.255.0 will summarize 192.168.0.0/24 into area 'foo' hth, -Mark ""Jay Greenberg"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hello group, > > I seem to have a problem with OSPF external LSA summarization. I have > an Ethernet segment in area 4. There are 2 ASBRs (RAS Gear), and 1 ABR > (the router connected to my backbone). Suppose for now, that ASBR1 is > injecting 192.168.0.1/32 into OSPF as an E2 LSA, and ASBR2 is injecting > 192.168.0.128/25 into OSPF as an E2 LSA. I would like the other areas > to just understand that 192.168.0.0/24 is reachable via the area 4 ABR, > however, #area 4 range 192.168.0.0 255.255.255.0 will not work, because > it will not summarize external routes, and I cannot use summary-address > (or can I?) on the ABR, because it is only supposed to be used by > ASBRs. > > My question is: How can I get the ABR to summarise the /24? > > Jay Greenberg Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=50377&t=50260 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
