Mixed MTU hosts on a network

Matthias Ordner matthias.ordner at noris.net
Fri Mar 16 10:35:18 CET 2018

Hi Roman,

> When WireGuard starts by default, it sets MTU of its interface to 1420. All
> TCP connections trying to send a stream of data over the WG interface to that
> host, hang up (I test with iperf3).

If you only care about TCP connections you could set a different TCP-MSS 
with an iptables rule.

Best regards

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