iRule for persistence table entries

Sure thing. One note, though. It appears that the cookie only holds 9 characters, so if the username is longer than that, the uniqueness of the user will need to be determined in the first 9 characters. Also, the else wasn't matched to the correct if clause, so I moved it. This should meet both conditions correctly:

 
 when CLIENT_ACCEPTED { 
   TCP::collect 
 } 
 when CLIENT_DATA { 
   TCP::collect 25 
   binary scan [TCP::payload] x11a* msrdp 
   log local0. "Contents after binary scan: $msrdp" 
   if { [string equal -nocase -length 17 $msrdp "cookie: mstshash="] } { 
     set msrdp [string range $msrdp 17 end] 
     set len [string first "\n" $msrdp] 
     if { $len == -1 } { 
       TCP::collect 
       return 
     } 
     if { $msrdp contains "@" } { 
       if { $len > 5 } { 
         incr len -1 
         log local0. "Data Persisting on: [getfield $msrdp "@" 1]" 
         persist uie [getfield $msrdp "@" 1] 
       } 
     } else { persist uie $msrdp } 
   } 
   TCP::release 
 }