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smp_86112's avatar
smp_86112
Icon for Cirrostratus rankCirrostratus
Feb 18, 2015

Check to see if [RADIUS::avp 31 string] exists

Hi. I found out about some unexpected behavior today as a result of this iRule: when CLIENT_ACCEPTED { persist uie "[RADIUS::avp 31 string]" 900 } The problem I found is that the LTM sends ...
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  • Brad_Parker_139's avatar
    Brad_Parker_139
    Feb 18, 2015

    Does [RADIUS::avp 31] possibly return as an empty string, "", if it returns nothing? I would add a log local0. "radius 31 is [RADIUS::avp 31]." And test the scenario to see if returns an empty string. If it is, your if can be

     

    If { not ([RADIUS::avp 31 string] equals "") } {
    persist uie "[RADIUS::avp 31 string]" 900
    }
}

     

smp_86112's avatar
smp_86112
Icon for Cirrostratus rankCirrostratus
Feb 19, 2015

The original iRule fails like this: 

 - attempt to use empty persistence key (line 2) invoked from within "persist uie "[RADIUS::avp 31 string]" 900

I'm not experienced enough to know if that translates to being an empty string or not. In any case, I have lots of explaining to do to lots of business people now. It'll be awhile before I'm allowed to try and fix this. I should have done a better job of isolating my test of this change from other traffic, and I will do that next time.

I'll post an update when I have something. Thanks for your willingness to help.