How can I avoid out-of-order TCP packets in Wireshark -


i have following situation - when recorded tcp traffic wireshark packets out-of-order. need save data pdml (wireshark detail xml) , process each main tag 1 one. problem i'm expecting data saved in correct order, out-of-order packets not true. packets looks following:

  • id time ... ack seq
  • 1 12:10:01 ... 1 1
  • 2 12:10:02 ... 206 1461
  • 3 12:10:03 ... 206 1 (out-of-order)
  • 4 12:10:04 ... 2143 206
  • 5 12:10:05 ... 2143 218
  • 6 12:10:06 ... 283 2143

so 3rd packet actual start of response server , 2nd 1 continuation.

this situation occurs , can manually switch packets in produced pdml. automatically if possible, prevent problem sure.

so question - there default possibility configure sorting in wireshark avoid such issue? or option write own parser produced pdml described situation must handled.

what need output 2nd , 3rd packets switched.

how can avoid out-of-order tcp packets in wireshark

assuming packets weren't delivered machine out of order, can avoid them doing capturing on operating system doesn't deliver packets out of order capture mechanism libpcap/winpcap uses. @ least versions of linux would, on multiprocessor/multicore machines, sometimes, because 2 packets processed different cores, , 1 arrived later on machine made pf_packet socket first.

the packets in example in order time stamp, significant time difference between them; happens in captures? if so, packets are arriving on capturing host out of order.

there no mechanism in wireshark sort packets tcp sequence number , write them out in order.


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