OSPF to RIP connection

[chrolloluzif85738]

hey i tried for at least 5hours to make a connection beetween rip and ospf but i just doesnt work. i saw a youtube video and did exactly the same but idk what the problem is. 

Can someone please look at my pkz file. I tried to connect router 3 and router 5

thank you :))

reg

[Martin L]

right R5 has too many routes advertised in RIP.  he needs only RIP routes , so link to R3.

left R3 missing network 192.168.12.0 , and no auto-summary - although some or all routes may work with auto summary - need more closer look

Regards, ML
**Please Rate All Helpful Responses **

[Martin L]

it seems that auto summary or not on R3 doesn't matter. just add network 192.168.12.0 to RIP process.

[toj12 · Accepted solution]

Hey Reg, Martin is correct with both answers in respect to RIP advertisements on R5 and no auto-summary on RIP.

To sum it up for you...

- OSPF has a lower administrative distance than RIP. OSPF routes will hit the routing table instead of RIP. OSPF AD = 110, RIP AD = 120
- On R5 remove rip advertisements (inline with your topology). Note that PC4 and PC5 can still ping R5
- Setup OSPF routing on both R5 and R3 and create a neighbor adjacency by advertising 192.168.12.0/24
- On R3 redistribute connected interfaces and RIP routes in OSPF
-- Note on R5, External connected and rip routes are in OSPF's routing table
-- Note PC4 and PC5 can ping R3, PC2 and PC3
- On R2 there are no OSPF routes in the routing table
-- Note PC4, PC5 cannot ping R2, R1, PC0, PC1 because OSPF routes are not redistributed in RIP
- After redistributing OSPF into RIP, R2 is now showing OSPF routes

- All PCs can now reach each other

----

R3:

router ospf 1

redistribute rip metric 1 subnets

redistribute connected metric 1 subnets

network 192.168.12.0 0.0.0.255 area 0

router rip

version 2

redistribute ospf 1 metric 1

network 192.168.2.0

network 192.168.5.0

no auto-summary

R5

router ospf 1

network 192.168.4.0 0.0.0.255 area 0

network 192.168.6.0 0.0.0.255 area 0

network 192.168.12.0 0.0.0.255 area 0

[chrolloluzif85738]

Thank youuuu very much :))

[chrolloluzif85738]

thanks :))