redistributing connected routes into ospf/eigrp
Ok so here is the topology I'm running, it's pretty simple:
o
o
o
R1 R2 R3
R1 is running OSPF. R2 is running OSPF on f0/0 (interface to R1), and EIGRP on f0/1 (interface to R3). R3 is running EIGRP.
I am emulating connected interface on R2 with loopback0.
Now, when i redistribute connected into R2's router eigrp process, R3 will install a new route:
D EX 192.168.10.0/24 [170/156160] via 10.6.2.1, 00:00:05, FastEthernet0/0,
and R1 which is running OSPF will not install a route. As i imagine, this is happening because of split-horizon which
prevents R3 to send update on f0/0 on which it learned about the route to begin with.
Ok, the problem i have is, if i instead redistribute connected under R2's router ospf process, R1 will now have a route:
O E2 192.168.10.0/24 [110/50] via 10.5.2.2, 00:30:22, FastEthernet0/0,
BUT R3 will never get the update. If split horizon is not preventing R1's OSPF to advertise a route back to R2 which is using mutual redistribution, and therefore to R3
what is preventing R3 from learning about the route?
Can someone explain this to me, I'm missing a concept here ?
o
o
o
R1 R2 R3
R1 is running OSPF. R2 is running OSPF on f0/0 (interface to R1), and EIGRP on f0/1 (interface to R3). R3 is running EIGRP.
I am emulating connected interface on R2 with loopback0.
Now, when i redistribute connected into R2's router eigrp process, R3 will install a new route:
D EX 192.168.10.0/24 [170/156160] via 10.6.2.1, 00:00:05, FastEthernet0/0,
and R1 which is running OSPF will not install a route. As i imagine, this is happening because of split-horizon which
prevents R3 to send update on f0/0 on which it learned about the route to begin with.
Ok, the problem i have is, if i instead redistribute connected under R2's router ospf process, R1 will now have a route:
O E2 192.168.10.0/24 [110/50] via 10.5.2.2, 00:30:22, FastEthernet0/0,
BUT R3 will never get the update. If split horizon is not preventing R1's OSPF to advertise a route back to R2 which is using mutual redistribution, and therefore to R3
what is preventing R3 from learning about the route?
Can someone explain this to me, I'm missing a concept here ?
Comments
As before, eigrp and ospf are different routing protocols that do not exchange routes unless explicitly configured to do so using redistribute.
But i've come to realize what the problem was. Thx anyway