MTU handling in 6RD deployments

Gert Doering gert at
Tue Jan 7 13:39:27 CET 2014


On Tue, Jan 07, 2014 at 12:37:39PM +0100, Tore Anderson wrote:
> Does anyone know what tricks, if any, the major 6RD deployments (AT&T,
> Free, Swisscom, others?) are using to alleviate any problems stemming
> from the reduced IPv6 MTU? Some possibilities that come to mind are:

"Have a higher IPv4 MTU between the 6rd tunnel endpoints"  sounds like
a nice solution an ISP could deploy.

But I've long given up hope after everybody seems to agree that 1492
is just fine.

Gert Doering
        -- NetMaster
have you enabled IPv6 on something today...?

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