[j-nsp] OSPF from secondary IP addresses

[Chris Hellberg]

Have you tried putting a preferred keyword under the address config stanza in the interface?

http://www.juniper.net/techpubs/software/junos/junos56/swconfig56-interfaces/html/interfaces-family-config12.html


> -----Original Message-----
> From: Vlad [mailto:vlad at doom.net]
> Sent: Wednesday, 22 October 2003 10:14
> To: juniper-nsp at puck.nether.net
> Subject: [j-nsp] OSPF from secondary IP addresses
> 
> 
> Hello,
> 
> I have a Juniper m20 with a GigE interface and multiple IP addresses
> configured on that interface (secondary IP addresses in cisco speak).
> I can form OSPF adjacency with other equipment on my network 
> just fine.
> However it appears my Juniper is also trying to form 
> adjacency from the other
> IP addresses configured on the GigE.   My other network 
> equipment doesn't have
> those networks configured on any interface, so a tcpdump on a 
> workstation or
> 'debug ip ospf adj' on cisco  will show:
> 
> *Oct 15 12:57:12: OSPF: Rcv pkt from 2.5.240.6, 
> GigabitEthernet0/0/0, area 0.0.0.0 : src not on the same network
> *Oct 15 12:57:13: OSPF: Rcv pkt from 2.2.13.1, 
> GigabitEthernet0/0/0, area 0.0.0.0 : src not on the same network
> *Oct 15 12:57:13: OSPF: Rcv pkt from 2.2.37.1, 
> GigabitEthernet0/0/0, area 0.0.0.0 : src not on the same network
> *Oct 15 12:57:13: OSPF: Rcv pkt from 2.2.41.1, 
> GigabitEthernet0/0/0, area 0.0.0.0 : src not on the same network
> *Oct 15 12:57:13: OSPF: Rcv pkt from 2.5.251.1, 
> GigabitEthernet0/0/0, area 0.0.0.0 : src not on the same network
> 
> It appears the Juniper is trying to form adjacency and sourcing OSPF
> packets from every single IP addresses configured on my Junipers' GigE
> interface.  I only want OSPF packets to be sourced from one particular
> network.
> 
> I believe I'm looking for juniper  equivalent to ciscos 
> 'network 2.5.224.0 0.0.0.255' configuration directive under 
> 'router ospf'
> 
> Does such a thing exist, or do I have to craft something with a policy
> or filter?  Or is something else going on?
> 
> Thanks
> -v
> 
> 
> My Juniper config:
> 
> foo> show configuration protocols ospf   
> export ospf-out;
> area 0.0.0.0 {
>     interface ge-0/0/0.0;
> }
> 
> foo> show configuration policy-options policy-statement ospf-out 
> term 5 {
>     from protocol [ static direct ];
>     then accept;
> }
> then reject;
> 
> 
> My cisco config:
> 
> foo#sh run | begin ospf
> router ospf 100
>  router-id 2.5.224.3
>  log-adjacency-changes
>  redistribute connected subnets
>  redistribute static subnets
>  passive-interface default
>  no passive-interface GigabitEthernet0/0/0
>  network 2.5.224.0 0.0.0.255 area 0.0.0.0
> !
> 
> -v
> _______________________________________________
> juniper-nsp mailing list juniper-nsp at puck.nether.net
> http://puck.nether.net/mailman/listinfo/juniper-nsp
> 
> 

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