Communication between Pure IPv6 and Pure IPv4 hosts on the same VLAN/different VLAN.

nikhil.kulkarni · ‎03-11-2014

Folks,

I am looking at some help/recomendations to get some communication going on between IPv4 and IPv6 hosts defined on a switch. These hosts could be or could not be in the same VLAN.

regards,

Nik

James Leinweber · ‎03-12-2014

You really want one of the hosts to be dual stacked, so that the communication can be native v4 or native v6. The alternatives are very ugly and break most protocols that are more complicated than simple TCP connections.

Have the v6-only host talk to a NAT64 gateway - ASA 9.x firewalls might be able to do this - in preference to trying to having the v4-only host talk to a NAT46 gateway.

-- Jim Leinweber, WI State Lab of Hygiene