Issue with OSPF

[zac32235]

Hello, I am trying to configure OSPF so that all the end devices can ping each other. After configuring the routers, only PC0, 1 & 3 can ping each other. I tried to manually add R6 into R4 by the neighbor command but "Neighbor command only allowed on NBMA and P2MP networks" errors pops up. I got the same result when I tried to add R2 into R5.

R2---------------

R5--------------

R4---------------

R6----------------

[M02@rt37]

Hello @zac32235 

R3 seems to be the only ospf adjencies with it loopback 7.7.7.7

Do R3 and R5 ping Gi0/1 R2 interface ?

Please share ospf process config of each routers. Thanks.

[zac32235]

Hi, R3 and R5 are not able to ping R2.

R1 no OSPF. Connected to R2 via static route

R2----

router ospf 54

network 183.25.4.176 0.0.0.7 area 0

network 183.25.4.184 0.0.0.7 area 0

R3----

router ospf 54

network 183.25.4.184 0.0.0.7 area 0

network 183.25.4.192 0.0.0.3 area 0

R4----

router ospf 54

network 183.25.4.192 0.0.0.3 area 0

network 183.25.4.64 0.0.0.63 area 1

network 183.25.4.0 0.0.0.63 area 2

R5----

router ospf 54

network 183.25.4.160 0.0.0.15 area 0

network 183.25.4.184 0.0.0.7 area 0

R6----

router ospf 54

network 183.25.4.196 0.0.0.3 area 1

network 183.25.4.64 0.0.0.63 area 1

[M02@rt37]

@zac32235 

Thanks. So debug why R3 and R5 are not able to ping R2 Gi0/1 interface. Check Switch config etc...

[MHM Cisco World]

I dont have PKT now in my phone' and M02@rt37 can help you alot in this task

I will give you hint what is your mistake 

You config area 0 not between router' i.e. the area 0 is split which is need virtual link or you can re-arrange topolgy and make the center router use area 0 and sided router use other area

MHM

[zac32235]

Hi I tried doing the virtual link but I got the error below while debugging

This is the topology I'm trying to achieve so I am unable to change the topology

[paul driver]

Hello
You do not require a VL, the the ospf BB ( r2-3-5) is NOT discontingous as R4(ABR) also has connection to the BB via R3

[MHM Cisco World]

Can mention the area you use in each router'

Make circile for each area

Thanks 

MHM

[MHM Cisco World]

this design 

NOTE:- R2 R3 R5 need to be in same subnet if area0 since routers connect via SW 
SW must use same VLAN to connect R2 R3 and R5

[zac32235]

Hi, I managed to fix my issue. I went back to check my connections and found that the R2 connections got swapped. For R4 I had to add the area manually to the interface itself and it works. Thank you for your help!

[MHM Cisco World]

Friend you are so welcome 

Have a nice weekend 

MHM