Re: PM3, Cisco 2511 and OSPF

Leonard (pmfan@infinetgroup.com)
Thu, 21 Aug 1997 12:43:11 -0700 (PDT)

On Thu, 21 Aug 1997, Dave Stewart wrote:
> I've turned on OSPF on both the PM3 and the Ciscos. The Ciscos are
> learning routes from each other fine. But the PM3 is not. Nor are the
> Ciscos accepting routes from the PM3.
>
> The PM3 does show (in show ospf neighbor) when I make changes to the
> priorities on the Ciscos, so it's hearing, obviously.

First thing you might want to check is the ospf passwords on each machine.

You said your Ciscos and PM3s aren't on the same subnet. I presume you
mean /24 subnet? If they aren't, then that's most likely the cause of
your problem - ie. they see each other in the same area, but don't
consider each other ospf neighbours. In any case, do a "sho glob" and
check your OSPF Router ID. I presume on your Ciscos, you did a "network
aaa.bbb.ccc.ddd.0 0.0.0.255 area 0" Then the OSPF router ID on your PM3s
must fall within this subnet to be recognised as neighbours. A "set ospf
router-id ..." on your PM3s will do the job. Note that your ospf router-id
doesn't have to be the same as your ether0 ipaddress. I'm not sure if you
can change the ospf router-id on the ciscos. But that's most likely not
needed - if they start talking, it will be full-duplex.

Also, If you have more than 1 /24 subnet, you should do on your PM3s
"set ospf area 0 range aaa.bbb.ccc.0/24 advertise"
for _each_ subnet.

Hope that helps.
Leonard.