From: andervb@yahoo.dk
Date: Fri Dec 02 2005 - 13:37:29 GMT-3
based in
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftabrt3f.htm
"With this feature enabled in the "out" direction, all type 3 LSAs advertised by the ABR, based on information from this area to all other areas, are filtered by the prefix list. If the area range command has been configured for this area, type 3 LSAs that correspond to the area range are sent to all other areas, only if at least one prefix in the area range matches an entry in the prefix list."
R1 - (AREA1) - R2 -(AREA 0) -R3
THIS ON R1 all in area 1
Loopback3 20.20.8.8 YES manual up up
Loopback4 20.20.9.9 YES manual up up
Loopback5 20.20.10.10 YES manual up up
Loopback6 20.20.11.11 YES manual up up
and more networks 192.168.x.x
i need just one net 20 on r3 area 0 receiving a summary using the mininum prefix , there is another nets as 198 , but this r2 can advertise with no problems
Cand configure r2 as :
area 1 range 20.20.8.0 255.255.252.0 ( the minimum prefix should be .251 to do not have 20.20.12.12)
and
area 1 filter-list prefix AREA_1 out
ip prefix-list AREA_1 seq 10 deny 20.20.8.0/21 ge 30
ip prefix-list AREA_1 seq 20 permit 0.0.0.0/32
Does it sent all net 192.198.x.x to R3 and just 20.20.8.0 wildcard 0.0.3.0 to cover just nets .8 , .9 , .10 and .11 ,,, not .12 too?
or there's no way for this , I need to use just area range and no ABR TYPE 3 LSA filtering and accept I cannot filter .12 on this summary?
thanks
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