EIGRP leak-map

EIGRP leak-map allows sub-networks in the summary address of EIGRP leaked. The command we use is "ip summary eigrp x.x.x.x y.y.y.y leak-map <route-map>

Example


R2 will advertise summary address (192.168.0.0/22) to R1. However, 192.168.2.0 is required to leaked out from the summary address.

Configuration


R2

ip summary-address eigrp 1 192.168.0.0 255.255.252.0 5 leak-map allow-2


ip access-list standard allow-2
 permit 192.168.2.0
!
route-map allow-2 permit 10
 match ip address allow-2
!

Verify Configuration


R1#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

     172.16.0.0/24 is subnetted, 1 subnets
C       172.16.1.0 is directly connected, FastEthernet0/0
D    192.168.2.0/24 [90/409600] via 172.16.1.2, 00:00:08, FastEthernet0/0
D    192.168.0.0/22 [90/409600] via 172.16.1.2, 00:03:25, FastEthernet0/0