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Beginner

OSPF MULTIAREA

Capture.PNGR1proto.PNG

R2proto.PNG

Hi

I'm trying to set up a network with multiarea ospf.

I've set ospf like in the uploaded screen but I can only reach:

From all PCs on the left side (AREA 0) the ip on serial port of Router0 (R1)

From all PCs on the right side (AREA 2) the ip on serial port of Router1(R2)

but i cant't ping the router "on the other side".
Can someone help me?
Thank you

 

1 ACCEPTED SOLUTION

Accepted Solutions
Advocate

Re: OSPF MULTIAREA

Hi @GigabitUser ,

 

That is correct, so there is no problem between area 1 and area 0.

The problem is generated between area 2 and area 0, since they do not have a common network.

If you change network 10.0.0.0 to area 0 on both routers, then that network will be in common in both areas.

 

Regards

8 REPLIES 8
Advocate

Re: OSPF MULTIAREA

Hi @GigabitUser ,

 

Try this:

 

Configure network 10.0.0.0 in area 0 on both routers.

All OSPF areas must be connected, at least by a router, to area 0.

 

Regards

 

Beginner

Re: OSPF MULTIAREA

Is it mandatory that area 0 have to be in common between routers?
Advocate

Re: OSPF MULTIAREA


Hi @GigabitUser ,

 

The mandatory is that all areas must have a router in common with area 0.

In your current scheme, your area 2 does not have a link in common with area 0, so there is no communication.

 

Regards

Beginner

Re: OSPF MULTIAREA

area 1 is in common between area 0 and 2. No?
Advocate

Re: OSPF MULTIAREA

Hi @GigabitUser ,

 

That is correct, so there is no problem between area 1 and area 0.

The problem is generated between area 2 and area 0, since they do not have a common network.

If you change network 10.0.0.0 to area 0 on both routers, then that network will be in common in both areas.

 

Regards

Beginner

Re: OSPF MULTIAREA

Yes! It works
Thank you! have a good day
VIP Mentor

Re: OSPF MULTIAREA

Hi
can you post the running config off both R1 and R2 please , we can take a look
Beginner

Re: OSPF MULTIAREA

R1

ShRun.PNGShRunR1(2).PNGShRunR1.PNG

 

 

 

 

 

 

 

 

---------------------------------------------------------------------------------

R2

ShRunR2(2).PNGShRunR2.PNG

 

 

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