From: Ina&Laurean (ina.laurean@gmail.com)
Date: Mon Mar 24 2008 - 14:25:17 ART
Hi Group,
I am working on a lab and one of the requirements is to filter a default
route coming from a specific EIGRP neighbor, I tried different solutions but
none of them work seem to work, the solution is using the distance command
with neighbor EIGRP address and an access list.
I've created a Lab with just two routers to test this and as you can see the
default route is still into the routing table even though under the ip
protocols shows that the distance is 255.
Thanks,
Laurean
Bellow my configurations:
R1-LAB#sh run | s eigrp
router eigrp 236
redistribute static metric 1000 10 255 1 1500
network 192.168.253.0
network 192.168.254.0
no auto-summary
deny eigrp any any
R1-LAB#
R1-LAB#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 10.1.9.254 to network 0.0.0.0
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.1.9.0/24 is directly connected, GigabitEthernet0/0
S 10.1.6.5/32 [254/0] via 10.1.9.254, GigabitEthernet0/0
C 192.168.254.0/24 is directly connected, Vlan1
C 192.168.253.0/24 is directly connected, Loopback0
D 192.168.252.0/24 [90/156160] via 192.168.254.2, 00:11:18, Vlan1
S* 0.0.0.0/0 [254/0] via 10.1.9.254
R1-LAB#
R2-LAB#sh run | s eigrp
router eigrp 236
network 192.168.252.0
network 192.168.254.0
distance 255 192.168.254.1 0.0.0.0 1
no auto-summary
R2-LAB#sh run | s access-
access-list 1 permit 0.0.0.0
R2-LAB#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 192.168.254.1 to network 0.0.0.0
10.0.0.0/32 is subnetted, 1 subnets
D EX 10.1.6.5 [170/2565120] via 192.168.254.1, 00:00:45, Vlan1
C 192.168.254.0/24 is directly connected, Vlan1
D 192.168.253.0/24 [90/156160] via 192.168.254.1, 00:00:45, Vlan1
C 192.168.252.0/24 is directly connected, Loopback0
D*EX 0.0.0.0/0 [170/2565120] via 192.168.254.1, 00:00:45, Vlan1
R2-LAB#
R2-LAB#sh ip protocols
Routing Protocol is "eigrp 236"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hopcount 100
EIGRP maximum metric variance 1
Redistributing: eigrp 236
EIGRP NSF-aware route hold timer is 240s
Automatic network summarization is not in effect
Maximum path: 4
Routing for Networks:
192.168.252.0
192.168.254.0
Routing Information Sources:
Gateway Distance Last Update
192.168.254.1 255 00:01:03
Distance: internal 90 external 170
Address Wild mask Distance List
192.168.254.1 0.0.0.0 255 1
R2-LAB#
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