On 04/03/2019 23:02, Chris Carr wrote: > * What outcome did you expect instead? > > I expected Windows to receive the correct MTU size of 1280 as set in > /proc/sys/net/ipv6/conf/he-ipv6/mtu >
> interface=int0 > dhcp-range=tag:int0,::1,constructor:int0,ra-names,24h There seem to be two different interfaces here. It looks like dnsmasq may be advertising on int0 with the MTU for int0, and I'm not clear where he-ipv6 comes into the equation. Simon.