https://datatracker.ietf.org/doc/draft-spiriyath-ipsecme-dynamic-ipsec-pmtu/
draft-spiriyath-ipsecme-dynamic-ipsec-pmtu-01 - Packetization Layer Path Maximum Transmission Unit...
This document describes Packetization Layer PMTU Discovery (PLPMTUD) procedures for IPSec tunnels. In these procedures, the encrypting node discovers and...