[j-nsp] filter-based forwarding

ying zhang cynthia_dal at yahoo.ca
Wed Mar 11 13:49:36 EDT 2009


Hi list,
Tried to use source-based forwarding on a M120. I created two OTHER routing instances: instance-1 and instance-2. Then apply a filter on an M120 interface which connected to an upstream router. 
    If I do this:
    filter classify-customers {
        term isp1-customers {
            from {
                source-address {
                        10.1.1.0/24;
                                        }
                    }
                then {
                        routing-instance instance-1;
                        }
                    }
        term isp2-customers {
                from {
                    source-address 
                            {10.2.1.0/24;
                            }
                then {
                        routing-instance instance-2;
                        }
                            }
    } *END of filter*
    This will break the routing between M120 and its upstream router, but If change the last term to using master routing instance, things work just fine:
    filter classify-customers {
        term isp1-customers {
            from {
                source-address {
                        10.1.1.0/24;
                                        }
                    }
                then {
                        routing-instance instance-1;
                        }
                    }
        term isp2-customers {
                from {
                    source-address {
                            10.2.1.0/24;
                            }
                then {
                       accept;
                        }
                            }
    } *END of filter*
    
    Does anyone know why? Checked the document, didn't find a clue. Thanks a lot.
    
    C.



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