Re: [PATCH net-next 12/14] gtp: Configuration for zero UDP checksum

On Mon, Sep 18, 2017 at 9:24 PM, David Miller [off-list ref] wrote:

From: Tom Herbert <redacted>
Date: Mon, 18 Sep 2017 17:39:02 -0700

quoted

Add configuration to control use of zero checksums on transmit for both
IPv4 and IPv6, and control over accepting zero IPv6 checksums on
receive.

Signed-off-by: Tom Herbert <redacted>

I thought we were trying to move away from this special case of allowing
zero UDP checksums with tunnels, especially for ipv6.

I don't have a strong preference either way. I like consistency with
VXLAN and foo/UDP, but I guess it's not required. Interestingly, since
GTP only carries IP, IPv6 zero checksums are actually safer here than
VXLAN or GRE/UDP.

Tom