[j-nsp] Problems with OSPF stub area (Juniper and Cisco)

[Matti Saarinen]

Hi,

I'm having problems with configuring an OSPF stub area where ABR is
Juniper (JUNOS 5.4.R2.4) and inside the area there is a Cisco router.
The routers are connected to each other over an ATM PVC.


Currently, I have the following configuration in Juniper:


interfaces {
    at-0/0/0 {
        unit 206 {
            encapsulation atm-snap;
            vci 0.206;
            inverse-arp;
            family inet {
                rpf-check;
                no-redirects;
                address 193.166.187.205/30;
            }       
        }           
    }
}

protocols {
    ospf {
        area 193.167.206.0 {
            stub default-metric 10 no-summaries;
            area-range 193.167.206.0/25;
            area-range 193.166.187.204/30;
            interface at-0/0/0.206;
        }
    }
}


I've no access to the Cisco router on the other end of the link. Yet,
I think its configuration is more or less in order because when I had
a Cisco router in place of the Juniper there were no problems. In
Cisco, the following configuration did work:


interface ATM8/0/0.6 point-to-point
 ip address 193.166.187.205 255.255.255.252
 ip verify unicast reverse-path
 no ip directed-broadcast
 ip pim sparse-dense-mode
 ip ospf network broadcast
 atm pvc 206 0 206 aal5snap inarp
 no atm enable-ilmi-trap
router ospf 1739
 area 193.167.206.0 stub no-summary
 area 193.167.206.0 range 193.167.206.0 255.255.255.128
 network 193.166.187.204 0.0.0.3 area 193.167.206.0
 network 193.167.206.0 0.0.0.127 area 193.167.206.0


While looking through the ospf trace in Juniper I don't see anything
about the network 193.167.206.0. Only the /30 in p2p link shows up.
The adjacency between Juniper and Cisco becomes full and in the area
database I can see the routes. Still, they never appear in the
forwarding table.

So, if anyone can give me any hints what to do or what I do wrong,
I'll appreciate it.

Cheers,


-- 
Matti Saarinen, Tampere University of Technology / Network Administration
Phone:	+358 3 3115 3337 # Address:	P.O. Box 692
Fax:	+358 3 3115 2172 #		FIN-33101 Tampere
Email:	mjs@cc.tut.fi	 #		Finland