Subj : FSP-1038.001 To : Stas Degteff From : Michiel van der Vlist Date : Thu Nov 07 2013 00:21:20 Hello Stas, On Wednesday November 06 2013 03:33, you wrote to Markus Reschke: MR>> It could be useful for IPv4-only nodes if the INO4 flag is used MR>> by a ruleset in the mailer configuration, for example: MR>> if IBN & !INO4 : "call using binkp" MR>> The node might running dual stack inside the LAN but only got MR>> IPv4 Internet access. SD> FYI, any node with ipv4 MAY connect to IPv6 world using "6to4" tunnel In the case of a dual stack LAN, as Markus mentioned, the 6to4 tunnel endpoint must be in the router. Not all routers support that. well, you can change the router. But also.. A 6to4 tunnel requires a (quasi)static IPv4 address for the tunnel end point. That is something not everyone has and can change. SD> or teredo or tunnel brocker. Teredo sucks... SD> IPv6 on my node connected via 6to4 (address in the subnet 2002::) So does my tunnel (2001:: subnet) But what works for you and me, may not work for all. Cheers, Michiel --- GoldED+/W32-MINGW 1.1.5-b20110320 * Origin: 2001:470:1f15:1117::1 (2:280/5555) .