Hello all,

I have tried to write a filter to match TCP-Flags. I have tried to filter out 
TCP-SYN packets:

filter-primitive ip-tcp-flags
  type ip-tcp-flags
  permit 2
  default deny

And 

filter-primitive ip-tcp-flags
  type ip-tcp-flags
  mask 0x02
  permit 0xFF
  default deny

And 

filter-primitive ip-tcp-flags
  type ip-tcp-flags
  mask 0xFF
  permit 0x02
  default deny

But there isn“t a match in my report (an there should be tons)

The only thing that generates an output was:

## no flag set
filter-primitive ip-tcp-flags
  type ip-tcp-flags
  mask 0xFF
  permit 0x00
  default deny

And 

## any flag combination
filter-primitive ip-tcp-flags
  type ip-tcp-flags
  mask 0x00
  permit 0x00
  default deny


I am using flow-tools 0.68 and a Enterasys SSR 8000 with 10.0.0.4. Do I need a 
never version of SSR or flow-tools?
 

Thks,


eric
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