On Wed, 2009-09-23 at 14:52 +0200, Bob Brusa wrote: > Hi > Further to my problem report "problem with recent port of lwip" I have > found the that most probably there is something wrong with the checksum > calculation of the incoming DHCPoffer. From the debug-output I see that > lwip combines several fragments and then comes up with a checksum error. > It drops the packet and DHCP remains without success. > > I attach the "erroneous" packet as seen by wireshark (txt-mode) > 090923_xx_1.out and an excerpt of the debug output of the lwip-stack > 090922_3.txt. As the name might make you think - the packages are not of > the same session. But the picture does not change. > Can somebody guide me how to fix this problem? Just a few words where this > calculation in the code is done. Thanks and best regards. > Robert
Have you considered getting wireshark to validate the checksum? In the trace you provide you've got checksum validation disabled. Kieran _______________________________________________ lwip-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/lwip-users
