[j-nsp] rpd crash JUNOS 7.4R1.7

[Josef Buchsteiner]

     Jeff,

     PR65851  has been filed and we crash once we want to
     prepend the aspath before the local as due to the
     as-path-prepend statement. Will make sure that such
     mistakes are bullet-proof in the future. This is
     not 7.4 specific and also valid in older releases.


     Josef



Saturday, November 19, 2005, 10:59:37 PM, you wrote:

JSW>    
JSW>    
JSW> The following configuration(s) on JUNOS 7.4R1.7 cause rpd to crash.  A
JSW>  rollback is necessary, or rpd will continue to restart and immediately
JSW>  crash again.  I have changed the IP/AS numbers to conform to my NDA.  I
JSW>  do not have the necessary lab resources to reproduce this outside of my
JSW>  client's production network.
JSW>  
JSW>  I believe this is probably an unusual configuration, and may not be
JSW>  intended to work; but if so it should fail `commit check` with error
JSW>  messages or perhaps silently ignore the as-path alternations, rather
JSW>  than allow the box to be configured in an unstable manner.
JSW>  
JSW>  Nov 19 21:29:39   /kernel: BAD_PAGE_FAULT: pid 71702 (rpd), uid 0: pc
JSW>  0x81713e6 got a read fault at 0x28, x86 fault flags = 0x4
JSW>  
JSW>  policy-statement master-RIP2RIB {
JSW>  /* treat route learnt from RIPv2 neighbor as a BGP customer route
JSW>   * and adjust the AS-PATH */
JSW>  term quirk-1 {
JSW>      from {
JSW>          route-filter 192.168.0.0/24 exact;
JSW>      }
JSW>      then {
JSW>          local-preference 500;
JSW>          community + exco-customer;
JSW>          /* as-path-prepend 65432 also crashes in the same manner */
JSW>          as-path-expand 65432;
JSW>      }
JSW>  }
JSW>  } // end policy-statement master-RIP2RIB
JSW>  
JSW>  protocols rip {
JSW>    import master-RIP2RIB;
JSW>    group rip {
JSW>      export reject;
JSW>      neighbor .....;
JSW>    }
JSW>  }
JSW>  
JSW>  --
JSW>  Jeff S Wheeler <jsw at inconcepts.biz> +1-212-981-0607
JSW>  Sr Network Operator  /  Innovative Network Concepts
JSW>  
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