[j-nsp] New post: OSPF export policing

[alain.briant at bt.com]

Hi Serghei

Can you confirm with a "show route extensive 0.0.0.0 instance VRF-B" the details of the route received.

I have just build a litte lab with your config with logical routers (not virtual ones ... Vrf)

I have the same ditribution filters as the one you're describing:


policy-statement EXPSTA {
    term 1 {
        from {
            route-filter 0.0.0.0/0 exact;
        }
        then reject;
    }
    term 2 {
        from {
            protocol static;
            route-filter 10.11.12.0/24 exact;
        }
        then accept;
    }
}


And I don't see the behaviour you're describing... I have default route received via bgp on router B distributed to router A and a static route 10.11.12.0 distributed from router A to B.

I think like wrote tonny we defenitely need some more config or traces from you.



-----Message d'origine-----
De : juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-bounces at puck.nether.net] De la part de Serghei Istrati
Envoyé : jeudi 19 mars 2009 16:57
À : juniper-nsp at puck.nether.net
Objet : [j-nsp] New post: OSPF export policing

Hi All. I have unwanted 0.0.0.0/0 route from OSPF peer. I have problems with route export in an OSPF area.

I have 2 Juniper boxes.R1 and R2 with several vrf-instances in each of them(with different OSPF area in different pairs of vrf) 

Now I'm making new VRF in each of Routers. VRF-A in R1 and VRF-B in R2.  and I'm configuring OSPF area 0.0.0.5 between VRF-A and VRF-B (in separate VLAN). 

I need to export only 10.11.12.0/24 static route through OSPF  from VRF-A to VRF-B

And I need to export only 0.0.0.0/0 BGP route through OSPF from VRF-B to VRF-A.

I'm using route policy to OSPF export. I have installed my 10.11.12.0/24 static route in VRF-B from OSPF VRF-A. And I have 0.0.0.0/0 in VRF-A from VRF-B.

 

!!! But, I also have  0.0.0.0/0 static route in VRF-B from OSPF VRF-A ???  Why ?? I don't have any static 0.0.0.0/0 in VRF-A

 

I have static 0.0.0.0/0 only in other VRF in R1.

my OSPF export policy on R1 VRF-A is:

term 1

      from  route-filter 0.0.0.0/0 exact

      then reject

term 2

      from protocol static

             route-filter 10.11.12.0/24 

      then accept

 

In OSPF Trace from R1(VRF-A)  I see that R1 uses transit area 0.0.0.0 to export static 0.0.0.0/0 but  I don't have area 0.0.0.0 in R1.

I have area 0.0.0.0 only between router R2 and another R3.

 

 

Please, If someone can to suggest some idea . Thank You

 

Best regards

 

Serghei Istrati
PRODUCT & SERVICE DEVELOPMENT
JV "MOLDCELL" JSC
Mob: +373 79400220
Tel: +373 22206226
Fax: +373 22206023
e-mail: s.istrati at moldcell.md <BLOCKED::mailto:s.istrati at moldcell.md>
www.moldcell.md <BLOCKED::http://www.moldcell.md/> 

 


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19/3/2009

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