Bird, Cisco & OSPF problem
Jarek
jarek at poczta.srv.pl
Sat Oct 3 12:33:20 CEST 2009
Hi!
I have problem with ospf configuration between Linux and Cisco.
We have:
LAN 10.200.199.0
|
Linux (two public interfaces)
| |
INTERNET
|
Cisco (one public interface)
|
LAN 10.200.200.0
Between Linux and Cisco we have two GRE tunnels. I'd like to setup OSPF
so gre tunnels will be redundant.
On Linux I have:
protocol kernel {
persist;
learn;
scan time 20;
export all;
import all;
}
protocol device {
scan time 10;
}
protocol direct {
interface "*";
}
protocol ospf myOSPF {
tick 2;
export all;
import all;
area 0 {
interface "tunnel*";
};
}
On cisco:
router ospf 100
router-id 10.200.200.1
log-adjacency-changes
network 10.200.200.0 0.0.0.255 area 0
network 192.168.100.68 0.0.0.3 area 0
network 192.168.101.68 0.0.0.3 area 0
192.168.100 and 192.168.101 are tunnel networks.
The problem is that probably Linux doesn't send info about directly
connected networks to Cisco.
In Linux routing table, I see proper route:
10.200.200.0/24 via 192.168.100.70 dev tunnel0 proto bird
But on Cisco side, there are only static routes:
85.0.0.0/29 is subnetted, 1 subnets
S 85.*.*.* [1/0] via 79.*.*.*
217.*.*.*/30 is subnetted, 1 subnets
S 217.*.*.* [1/0] via 79.*.*.*
10.0.0.0/24 is subnetted, 1 subnets
C 10.200.200.0 is directly connected, Ethernet0
79.0.0.0/30 is subnetted, 1 subnets
C 79.*.*.* is directly connected, Ethernet1
192.168.100.0/30 is subnetted, 1 subnets
C 192.168.100.68 is directly connected, Tunnel0
192.168.101.0/30 is subnetted, 1 subnets
C 192.168.101.68 is directly connected, Tunnel1
show ip ospf
Routing Process "ospf 100" with ID 10.200.200.1
Supports only single TOS(TOS0) routes
Supports opaque LSA
SPF schedule delay 5 secs, Hold time between two SPFs 10 secs
Minimum LSA interval 5 secs. Minimum LSA arrival 1 secs
Number of external LSA 76. Checksum Sum 0x2231B2
Number of opaque AS LSA 0. Checksum Sum 0x0
Number of DCbitless external and opaque AS LSA 76
Number of DoNotAge external and opaque AS LSA 0
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
External flood list length 0
Area BACKBONE(0)
Number of interfaces in this area is 3
Area has no authentication
SPF algorithm executed 51 times
Area ranges are
Number of LSA 3. Checksum Sum 0x36EE
Number of opaque link LSA 0. Checksum Sum 0x0
Number of DCbitless LSA 2
Number of indication LSA 0
Number of DoNotAge LSA 0
Flood list length 0
show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
10.209.192.2 1 FULL/ - 00:00:38 192.168.100.69 Tunnel0
10.209.192.2 1 FULL/ - 00:00:38 192.168.101.69 Tunnel1
What is wrong ?
best regards
--
Jarek <jarek at poczta.srv.pl>
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