Routing

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  • 1.  L3VPN, Only one CE2 can ping CE1

    Posted 09-13-2012 10:10
      |   view attached

    It's a quite simple topology. CE1--PE1--P--PE2--CE2. CE1 is running OSPF wiht PE1 and CE2 is running EBGP with PE2 VPN instance. After implement the import/export policies, I can see correct routes in both VPN routing table . However CE1 just can not ping CE5 loopback IP address. Thanks for your information, if you know how come. You can refert to file attached for configuration file.

    Attachment(s)

    txt
    config.txt   9 KB 1 version


  • 2.  RE: L3VPN, Only one CE2 can ping CE1

    Posted 09-13-2012 12:42

    Hi,

    I just had a quick look. If the routing is correct, I can think of one possibility.

     

    Please configure "vrf-table-label" under both routing instances. That could be the reason for not being able to ping.

     

    <edit routing-instances vpn2CE2>

    set vrf-table-label

     

    <edit routing-instances vpn2CE1>

    set vrf-table-label

     

    Regards

    Moses N

     



  • 3.  RE: L3VPN, Only one CE2 can ping CE1

    Posted 09-13-2012 19:25

    Hi Moses

         Thanks for your suggestion, I did it. The result is the same. I can ping 1.1.1.1 from CE2, and still can't ping 5.5.5.5 from CE1. 



  • 4.  RE: L3VPN, Only one CE2 can ping CE1

    Posted 09-13-2012 14:12

    Hi,

     

    I am not sure this may the main cause of your problem but I in R2 export policy you are using from protocol OSPF only while it supposed to be from protocol direct also to advertise subnet (100.100.100.0/30) to R4

     

                policy-statement export-vpn-route {
                    term 1 {
                        from protocol  [ ospf direct ];
                        then {
                            community add im199;
                            accept;
                        }
                    }
                    term 2 {
                        then reject;
                    }
                }


  • 5.  RE: L3VPN, Only one CE2 can ping CE1
    Best Answer

    Posted 09-13-2012 19:50

    Hi