Hi, You should be able to use FreeBSD + Kame (possibly FreeBSD 4.4 doesn't even need the kame snap kits) to do a v4 in v6 tunnel using gif devices.
Kame also has the NAT-PT package, you could possibly translate packets from v4 to v6 and back again, but I'm not sure how well it would work! Using a v4 in v6 tunnel would be the normal way to do this kind of thing I think.. :-) Tunnels *should* be able to handle multicast as well - although I haven't tried this. I don't think linux supports any of this (I may be wrong!) I know FreeBSD does. Have fun! Mike On Wed, 21 Nov 2001, Lukovszki, Csaba wrote: > > I would like to use on my linux a some of bidirectional > IPv6/IPv4 network address and protocol translator. > Unfortunatelly, I did not find any implementation. > > ----- Original Message ----- > From: "Donald McLachlan" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Cc: <[EMAIL PROTECTED]> > Sent: Wednesday, November 21, 2001 8:12 PM > Subject: Re: IPv4-Ipv6 header translation > > > > > > > From [EMAIL PROTECTED] Wed Nov 21 13:46:42 2001 > > > > > > Dear Colegeaus, > > > > > > In our laboratory we would like to investigate the situation where > > > two Ipv4 computers are comunicating between only Ipv6 capable cloud. > > > > > > ------ ipv4 pkts ------ ipv6 pkts ------ ipv4 pkts ------ > > > |ipv4|-------------|ipv6|-------------|ipv6|------------|ipv4| > > > ------ ------ ------ ------ > > > > > > Do anybody knows what kind of translation do we have to use > > > in IPv6 routers to make IPv4 computers to communicate. > > > > > > Best wishes, > > > Csaba Lukovszki > > > > Do you really want header translation, or tunnelling of IPv4 through > > IPv6? > > > > I've been looking at doing IPv6-in-IPv6 tunnelling. While reading up > > on this I saw that: > > > > - GRE (RFC-2784) could do this but does not handle MTU discovery so it > > looks like you'd have to do some careful MTU setting on the hosts on > > either side of the routers. Also, the RFC [March 2000] says "IPv6 as > > delivery and/or payload protocol is not included in the currently > > deployed versions of GRE." > > > > - RFC-2473 seems more complete and should be able to do what you need. > > 6Wind claims to have RFC-2473. > > > > - Cisco's tunnel command seems to allow 6-in-4 tunnels. I don't know > about > > 4-in-6 tunnels, or what tunnelling mechanism (read RFC) they use. > > > > Don > > > --------------------------------------------------------------------- > The IPv6 Users Mailing List > Unsubscribe by sending "unsubscribe users" to [EMAIL PROTECTED] > --------------------------------------------------------------------- The IPv6 Users Mailing List Unsubscribe by sending "unsubscribe users" to [EMAIL PROTECTED]
