Eigrp running on all three routers R1 has some loopback address and it sending summary routes to both spoke r2 and r3, this two spoke router receving summary routes but i want to receive specific routes on r2 this router already receving summary route from r1, is there any way to get specific(loop address) routes from r1 to r2 while it send summary route. Thanks in advance.
Leak-map is a technique which is used with summarization. It is used in the situations where you want to summarize routes but still want some routes to be preffered over others for some reasons. Leak map reffernces an access-list and whatever network is permitted in the access-list will be leaked along summary route.
Sathvik K V
on the Hub:
ip prefix-list LEAK permit 10.1.1.0/24
ip prefix-list LEAK permit 10.1.2.0/24
ip prefix-list LEAK permit 10.1.3.0/24
match ip address prefix LEAK
ip summary-address eigrp 1 10.0.0.0 255.0.0.0 leak-map LEAKMAP
This will send the summary and the subnet routes to both spokes, you can filter on R3 inbound for the specific subnets using a distribute-list with a prefix-list.
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