Re: Two IPv6 Hosts Communicating over IPv4 network

Hi Zhigao,

Actually, it is usually better to tunnel IPv6 packets within IPv4
packets than to translate them.

6to4 is an automatic tunneling mechanism that many folks use to
connect to the IPv6 network from an IPv4-only environment.
Configured tunnels between two IPv6 networks are also used.

I don't know if 6to4 is available for Linux (it probably is)...

Margaret


At 09:43 PM 12/9/2002 +0800, Chen Zhigao wrote:
>Dear all,
>
>I would like to have two hosts, which run IPv6 application on Linux,
>communicate each other across a commercial network. But there is no IPv6
>support in the commercial network.
>
>I guess IPv6/ICMPv6 packets must be converted to IPv4/ICMPv4 packets in host
>b4 they enter the IPv4 network. Likewise, IPv4/ICMPv4 shall be converted
>back to IPv6/ICMPv6 once they reach the destination IPv6 host. I have a few
>questions as follows.
>
>1) Has such work been implemented in Linux or other OS?
>2) If no, which RFC or draft addressing this issue?
>3) Does my scenario need to touch 6Bone, since only two IPv6 hosts are
>involved?
>4) Anything else need to be done apart from conversion of IP/ICMP?
>
>Any suggestion and comment are highly appreciated.
>
>Best regards,
>Zhigao