Wireshark mailing list archives
Re: Wireshark not reassembling UDP packet
From: ronnie sahlberg <ronniesahlberg () gmail com>
Date: Wed, 25 Apr 2012 07:40:23 +1000
On Wed, Apr 25, 2012 at 5:22 AM, Michael Tuexen <Michael.Tuexen () lurchi franken de> wrote:
On Apr 24, 2012, at 8:36 PM, Sake Blok wrote:On 24 apr 2012, at 17:42, Andre Kostur wrote:Yep, Frame length and Capture length are 1514 bytes. UDP checksum validation is already disabled. Additional information, the capture was done on the same box as the packet transmitter. Doing the capture from a 3rd box, and wireshark is able to reassemble the packet.It should also work on the box itself. Are you able to post the capture file so we can have a look at why it is failing?UDP doesn't do fragmentation and reassembly. So I guess you need IP level reassembly. One possibility is that the IP header checksum is not correct due to offloading. Does trying to disable the IP header checksum validation help?
In the reassembly, we could remove the check whether the ip header checksum is correct or not. Genuinely invalid cheksums should be incredibly rare today versus being uninitialized/garbage due to offload. ___________________________________________________________________________ Sent via: Wireshark-users mailing list <wireshark-users () wireshark org> Archives: http://www.wireshark.org/lists/wireshark-users Unsubscribe: https://wireshark.org/mailman/options/wireshark-users mailto:wireshark-users-request () wireshark org?subject=unsubscribe
Current thread:
- Wireshark not reassembling UDP packet Andre Kostur (Apr 23)
- Re: Wireshark not reassembling UDP packet Sake Blok (Apr 23)
- Re: Wireshark not reassembling UDP packet Andre Kostur (Apr 24)
- Re: Wireshark not reassembling UDP packet Sake Blok (Apr 24)
- Re: Wireshark not reassembling UDP packet Michael Tuexen (Apr 24)
- Re: Wireshark not reassembling UDP packet Andre Kostur (Apr 24)
- Re: Wireshark not reassembling UDP packet ronnie sahlberg (Apr 24)
- Re: Wireshark not reassembling UDP packet Kevin Cullimore (Apr 27)
- Re: Wireshark not reassembling UDP packet Guy Harris (Apr 27)
- Re: Wireshark not reassembling UDP packet Andre Kostur (Apr 24)
- Re: Wireshark not reassembling UDP packet Sake Blok (Apr 23)