Re: UDP zero checksums and v4 to v6 translators

[sthaug at nethelp.no]

> I have some dns packets at least that aren't checksumed and do
> traverse a wide-area-network. The work referenced is from at least 10
> years ago, certainly things have changed, we can hope they changed in
> the positive direction, but it's not clear to me that that is the
> case.

On the DNS servers I have access to (which includes one ccTLD server)
the UDP non-checksum packet rate is in the range of 2 to 4 per thousand
for *unfragmented* packets.

It would be interesting to see similar statistics for some of the
bigger root/gTLD server clusters.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no