[ovs-dev] [PATCH 2/8] gre: Don't require incoming checksum.

Ben Pfaff blp at nicira.com
Wed Aug 18 16:20:03 UTC 2010


On Wed, Aug 18, 2010 at 12:08:46AM -0700, Jesse Gross wrote:
> The current meaning of the GRE checksum option is to include
> checksums on transmit and require packets to have them on receive.
> In addition, incoming packets with checksums are always validated
> regardless of this option.  Requiring checksums on receive creates
> surprising behavior and interoperability issues.  This disables the
> requirement on receive.  The new behavior is that the sender decides
> whether to checksum packets and the receiver will validate packets
> with checksums (similar to UDP).

The last patch made me wonder why we could require GRE checksums on
input, so this clears it up.  Looks good to me, thanks Jesse.




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