On Tue, Mar 27, 2007 at 10:51:53PM +0200, Patrick McHardy wrote:
> 
> Just wondering, how does Xen know whether a packet will be forwarded?

It's up to Linux to handle it correctly.

> The input path doesn't seem to deal with CHECKSUM_PARTIAL correctly,
> ip_defrag for example resets them to CHECKSUM_NONE, so further checks
> will fail, others seem to either ignore them or handle them together
> with CHECKSUM_NONE.

That's OK, Linux/Xen never generates any CHECKSUM_PARTIAL fragments.

Cheers,
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