Re: IP-cksum incorrect in IPv4-response.

2011-02-23 Thread Mats Erik Andersson
onsdag den 23 februari 2011 klockan 22:03 skrev Timo Juhani Lindfors detta: > Mats Erik Andersson writes: > > using packet dumps like "tcpdump -pnvXi bge0 ip" I have been > > able to conclusively detect that kFreeBSD is inserting 0x > > as the IP header checksum in any TCP response triggered b

Re: IP-cksum incorrect in IPv4-response.

2011-02-23 Thread Timo Juhani Lindfors
Mats Erik Andersson writes: > using packet dumps like "tcpdump -pnvXi bge0 ip" I have been > able to conclusively detect that kFreeBSD is inserting 0x > as the IP header checksum in any TCP response triggered by an Are you using tcpdump to look at the checksums of outgoing packets? That's not

IP-cksum incorrect in IPv4-response.

2011-02-23 Thread Mats Erik Andersson
Dear all, using packet dumps like "tcpdump -pnvXi bge0 ip" I have been able to conclusively detect that kFreeBSD is inserting 0x as the IP header checksum in any TCP response triggered by an exterior connection. Thus also the TCP checksum is corrupt as a corollary. This phenomenon is of cours