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

[James R. L. <jl...@mi...>]

No known issue.  Make sure that you are not using the chksum offloading
on the NICs.

On Mon, Jun 21, 2004 at 12:57:59PM +0200, Pierre ANSEL wrote:
> 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.
> 
> 
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-- 
James R. Leu
jl...@mi...