From: Jongsoo kim (bstrt2002@gmail.com)
Date: Mon Mar 28 2005 - 15:20:52 GMT-3
Groups
I was doing some lab and found out something strange of OPSF point-to-multicast.
R1 is Hub, R4 and R2 are spokes.
R3-------R1( Hub) .1--------.2 R2( spoke 1),
| |
| |
| .4
Rip --------------.4 R4( spoke2)
R1,R2, and R4 are OSPF A 0 (172.16.124.0/24)
R1 and R3 are OSPF A 13.
R3 and R4 are running rip.(172.16.34.0/24)
Since OPSF p2m is configured, I saw /32 routes on routing table.
Every OSPF and Rip are working fine....So far so good.
But When I do show ip route on R3,
I saw /32 host routes of R1,R2,R4(172.16.124.1, 2 ,4) are via OSPF
But 172.16.124.0/24 are learned by Rip.
This indicates me OSPF p2m only annouced /32 host route but the subnet itself.
But I don't believe this is correct.
What am I missing ?
Here is output of R3 and
see "R 172.16.124.0/24 [120/1] via 172.16.34.4, 00:00:12,
FastEthernet0/1"
------------------------------R3------------------------------
R3#show 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, 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
70.0.0.0/24 is subnetted, 1 subnets
B 70.70.70.0 [200/0] via 172.16.36.6, 00:09:14
172.16.0.0/16 is variably subnetted, 19 subnets, 4 masks
C 172.16.140.0/22 is directly connected, Loopback1
O E2 172.16.25.32/27 [110/20] via 172.16.13.1, 00:00:39, Serial0/0
C 172.16.36.0/22 is directly connected, FastEthernet0/0
C 172.16.32.0/22 is directly connected, FastEthernet0/1
O E2 172.16.25.0/27 [110/20] via 172.16.13.1, 00:00:39, Serial0/0
D 172.16.16.0/24 [90/30208] via 172.16.36.6, 00:10:57, FastEthernet0/0
O E2 172.16.17.0/24 [110/20] via 172.16.13.1, 00:00:40, Serial0/0
O IA 172.16.12.0/24 [110/1626] via 172.16.13.1, 00:10:48, Serial0/0
C 172.16.13.0/24 is directly connected, Serial0/0
R 172.16.124.0/24 [120/1] via 172.16.34.4, 00:00:12, FastEthernet0/1
O 172.16.124.1/32 [110/64] via 172.16.13.1, 00:10:48, Serial0/0
O 172.16.124.2/32 [110/64] via 172.16.13.1, 00:10:48, Serial0/0
O 172.16.124.4/32 [110/128] via 172.16.13.1, 00:10:48, Serial0/0
R 172.16.120.0/24 [105/1] via 172.16.34.10, 00:00:02, FastEthernet0/1
O 172.16.124.5/32 [110/128] via 172.16.13.1, 00:10:48, Serial0/0
O 172.16.104.0/24 [110/129] via 172.16.13.1, 00:10:48, Serial0/0
O E2 172.16.105.0/27 [110/20] via 172.16.13.1, 00:00:40, Serial0/0
D 172.16.106.0/24 [90/156160] via 172.16.36.6, 00:10:57, FastEthernet0/0
C 172.16.103.0/24 is directly connected, Loopback0
10.0.0.0/24 is subnetted, 1 subnets
R 10.10.10.0 [120/1] via 172.16.34.4, 00:00:13, FastEthernet0/1
Thanks
Jongsoo
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