Path MTU discovery for IPv6 (PMTUD) was also published alongside RFC8200/STD86 as RFC 8201/STD87. This version has been greatly revised based on deployment feedback acknowledging the relative fragility of ICMPv6 based mechanisms due to filtering on the Internet as well as incorporating extensive review and input from the IETF Transport Area.
How To Find Correct MTU Values? | hide.me Nov 10, 2019 Encapsulation overhead calculator - baturin IPv6 WireGuard over PPPoE, parent interface MTU is 1500 We setup a WireGuard connection using IPv6 addressing over PPPoE. The UDP header is already included in the calculator, so we only have to add PPPoE (8 bytes), IPv6 (40 bytes), and of course WireGuard (40 bytes). The tunnel MTU becomes 1412 (1500 - 8 - 40 - 40). CellStream - IPv4/IPv6 Path MTU (PMTU) Discovery Demystified sudo sysctl -w net.ipv4.tcp_mtu_probing=1. You can then explorte what happens in Wireshark. My understanding from reading the Ubuntu docs on this is that whatever you have set for the IPv4 probing, the IPv6 stack mimicks the setting. Another thing you may be interested in is the amout of time the MTU setting is kept in the cache. OpenWrt Project: IPv6
Aug 28, 2018
Michigan Tech IT develops and supports technology solutions that enable Michigan Tech's faculty, students, and staff to excel in teaching, learning, research, scholarship, and public service. We’re committed to a diverse and inclusive community Understanding Path MTU Messages for IPv6 Packets SRX Series,vSRX. This topics describes path maximum transmission unit (MTU) and explains how the flow module for SRX Series devices processes and uses path MTU messages. [ipv6] Jumbo frames vs IPv6 - Networking | DSLReports Forums
IPv6, MTU, packet size Not sure what's going on. : ipv6
Testing packet size: 1500 Result: no PMTUD problems detected no PMTUD problems detected *SOLVED IT MYSELF* Router keeps re-configuring my Intel Sep 17, 2015