V4.2.x use:network:connections:add:uplink:6in4 https://external.iopsys.eu/juci/v4.2.x/en/ 2026-04-19T21:05:06+0200 V4.2.x https://external.iopsys.eu/juci/v4.2.x/en/ https://external.iopsys.eu/juci/v4.2.x/en/lib/tpl/inteno/images/favicon.ico text/html 2019-11-22T14:23:13+0200 Anonymous (anonymous@undisclosed.example.com) IPv6 Tunnel in IPv4 https://external.iopsys.eu/juci/v4.2.x/en/use/network/connections/add/uplink/6in4/start?rev=1574428993&do=diff IPv6 Tunnel in IPv4 A IPv6 Tunnel in IPv4 connection uses IPv4 to transmit IPv6 traffic. Overview 6in4 6in4 is a method to transmit IPv6 traffic over explicit IPv4 connections. The traffic is sent over the IPv4 Internet inside IPv4 packets whose IP headers have the IP protocol number set to 41.