I am self-hosting my own strongSwan VPN and, for some reason, my mobile carrier doesn’t support MTU higher than 1280 (see https://serverfault.com/questions/1025577/what-can-cause-an-ios-device-to-be-able-to-connect-to-ikev2-ipsec-vpn-over-lte-b).

I would rather configure this on the client to keep a higher default MTU for Wi-Fi connections.

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