[mpls-linux-general] TCP checksum problem with the MPLS linux 2.6 patch

[Pierre A. <pie...@po...>]

Hello !

We set up an MPLS path between two linux boxes. The patch was applied on a 
2.6.3 kernel. We're able to ping a host from the other. But our attemps to 
establish a TCP connection (for FTP or SSH) don't work : the connection is 
set up correctly (SYN / SYN&ACK / ACK), but the following packets (data 
packets) have a wrong TCP checksum ! Ethereal, both on the server and on the 
client, shows that the checksum is bad on both hosts (emission and 
reception). We use 3COM 905C NICs...

Is there a known issue ? Thanks a lot for your help !

Regards,
Pierre Ansel.