[j-nsp] Remote Triggered Blackhole

Khawaja, Kashif Kashif.Khawaja at broadwing.com
Thu May 27 16:09:48 EDT 2004


Hi All,

Trying to implement a really simple remote triggered blackhole config on
JunOS 5.1R3.4
Seems like it does not like the next hop (1.1.1.1) that I specify in the
policy because the prefixes that I am receiving marked with community
blackhole are all hidden. Is it not supported in this JunOS version. 


Below is an example configlet:

term "bhole" {
    from community blackhole;
    then {
        local-preference X;
        community add Y;
        community add Z;
        next-hop 1.1.1.1;
        accept;
    }
}

############################################
show route hidden extensive 2.2.2.16 

inet.0: 138399 destinations, 138399 routes (138386 active, 0 holddown,
14 hidden)
+ = Active Route, - = Last Active, * = Both

2.2.2.16/28 (1 entry, 0 announced)
TSI:

         BGP    Preference: 170/-111
                <<<<<<<<<<<<<<Next hop type: Unusable>>>>>>>>>>>>>
                State: <Hidden Ext>



##############################################
show route 1.1.1.0/24 

inet.0: 138417 destinations, 138417 routes (138404 active, 0 holddown,
14 hidden)
+ = Active Route, - = Last Active, * = Both

1.1.1.0/24     *[Static/5] 10w5d 18:50:06, metric 0
                     Discard


Thanks!
Kashif.




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