1420 or less for Wireguard. it will default to a safe value anyway.
Just like
@bnch said, the best option is to use default one.
In environments with additional overhead (mobile networks, double tunneling), a lower MTU (≈1380–1400) might be required to avoid fragmentation or PMTUD issues.
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Just like @bnch said, the best option is to use default one.
In environments with additional overhead (mobile networks, double tunneling), a lower MTU (≈1380–1400) might be required to avoid fragmentation or PMTUD issues.