From: NITIN NITIN (ccie_study_123@yahoo.com)
Date: Thu Aug 16 2007 - 07:49:38 ART
Hi experts,
I have
R3--BGP-------R1----area0---R2----area51---BB2
On R2 I'm genrating summary to BB2
150.1.0.0/20
of LOOPBACKS NETWORKS
150.1.x.x/24( where x is router no.)
R2-
area 51 range 150.1.0.0 255.255.240.0
when doing this
Rack1R2#sh ip route 150.1.0.0 255.255.240.0
Routing entry for 150.1.0.0/20
Known via "ospf 1", distance 110, metric 0, type intra area
Routing Descriptor Blocks:
* directly connected, via Null0
Route metric is 0, traffic share count is 1
This route is automatically genrated <<<<<<<<<
My Q is R2 has defaullt route from R1 to reach R3 loopback
but wont prefer due to length of summary /20 is beeter
so how to prefer default route in this case
Rack1R2(tcl)#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 156.1.0.1 to network 0.0.0.0
51.0.0.0/32 is subnetted, 1 subnets
O E2 51.51.51.51 [110/20] via 192.10.1.254, 00:54:26, FastEthernet0/0
156.1.0.0/16 is variably subnetted, 12 subnets, 3 masks
O E1 156.1.8.0/24 [110/692] via 156.1.0.1, 00:54:26, Serial2/0.1
O 156.1.5.0/24 [110/129] via 156.1.0.1, 00:54:26, Serial2/0.1
O 156.1.0.5/32 [110/128] via 156.1.0.1, 00:54:26, Serial2/0.1
O E1 156.1.4.0/24 [110/692] via 156.1.0.1, 00:54:26, Serial2/0.1
O 156.1.0.4/32 [110/192] via 156.1.0.1, 00:54:26, Serial2/0.1
O E2 156.1.7.0/24 [110/20] via 156.1.0.1, 00:54:26, Serial2/0.1
O 156.1.0.1/32 [110/64] via 156.1.0.1, 00:54:26, Serial2/0.1
C 156.1.0.0/24 is directly connected, Serial2/0.1
O 156.1.0.0/16 is a summary, 00:54:26, Null0
O IA 156.1.57.0/24 [110/129] via 156.1.0.1, 00:54:26, Serial2/0.1
O E1 156.1.48.0/24 [110/692] via 156.1.0.1, 00:54:26, Serial2/0.1
O 156.1.45.0/24 [110/1127] via 156.1.0.1, 00:54:26, Serial2/0.1
C 192.10.1.0/24 is directly connected, FastEthernet0/0
150.1.0.0/16 is variably subnetted, 7 subnets, 3 masks
C 150.1.2.0/24 is directly connected, Loopback0
O IA 150.1.7.7/32 [110/130] via 156.1.0.1, 00:54:26, Serial2/0.1
O 150.1.5.5/32 [110/129] via 156.1.0.1, 00:54:26, Serial2/0.1
O 150.1.4.4/32 [110/193] via 156.1.0.1, 00:54:26, Serial2/0.1
O 150.1.1.1/32 [110/65] via 156.1.0.1, 00:54:26, Serial2/0.1
O 150.1.0.0/20 is a summary, 00:54:26, Null0<<<<<<<<<<<<<<summary NULL0
O E1 150.1.8.0/24 [110/692] via 156.1.0.1, 00:54:26, Serial2/0.1
O*E2 0.0.0.0/0 [110/1] via 156.1.0.1, 00:54:26, Serial2/0.1<<<<<<<<<<<VIA R1
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