On Sat, 28 Aug 2021 07:05:45 +0930 Mike O'Connor <m...@pineview.net> wrote:
> On a 1500 link I'm having to use 1280 to get ipv6 to successfully go > over a wireguard link. Then it is not a true 1500 MTU link, something in-between drops packets at a lower bar. Or maybe not all of them, but just UDP, for example. But yeah, 1280 is worth trying as well, maybe Daniel has a similar issue. As for me I am using MTU 1412 WG over IPv6 on a 1492 MTU underlying link just fine. > I really think wireguard should be able to fragment and send via > multiply UDP packets. It is able to, as long as the underlying link MTU is set to a correct value (i.e. where largest-sized packets actually go through, and not get silently dropped). -- With respect, Roman