I mean in NAT/router mode, not bridge or providing the IP to the host, or whatever like that. The NAT keeps the public IP address and forwards all proto-41 traffic to the host that is initiating that traffic. Even you can have several hosts, in case they use different TBs (or manual tunnels), but obviously that doesn't make sense, because you want to have the same prefix in all the network (so you actually use the host as the "IPv6 router" for all the internal LAN).
3Com 812 is the one I use, but there are a lot more. I did a survey, some time ago. The only issue is that not always come configured by default to allow this. Obviously some boxes in GPRS networks also do that by default (I don't think the operator has configured it on-purpose). Regards, Jordi > De: Peter Bieringer <[EMAIL PROTECTED]> > Organizaci�n: AERAsec Network Services and Security GmbH > Responder a: <[EMAIL PROTECTED]> > Fecha: Fri, 18 Mar 2005 15:02:11 +0100 > Para: "[email protected]" <[email protected]> > CC: <[EMAIL PROTECTED]> > Asunto: Re: 2002 addresses > > > > --On Donnerstag, 17. M�rz 2005 22:29 +0100 JORDI PALET MARTINEZ > <[EMAIL PROTECTED]> wrote: > >> Hi Brian, >> >> Regarding 6to4 with NAT/private addresses ... I had some time ago a >> different experience. But not sure right now if it was using XP with SP1 >> or SP2, which could make the difference. >> >> I was using a GPRS cellular phone, via Bluetooth or infrared (not sure >> right now, long time ago). Then I was receiving a private address ... >> >> But 6to4 was working fine w/o any configuration from my side ! >> >> I suspected the reason for that was that the NAT was allowing protocol-41 >> forwarding, as described at >> http://www.consulintel.euro6ix.org/ietf/draft-palet-v6ops-proto41-nat-03. >> txt (to be updated soon) and >> http://www.euro6ix.org/documentation/euro6ix_co_upm-consulintel_wp4_ipv6_ >> tun nels_nat_v1_6.pdf). >> >> It happened to me several times when traveling. >> >> I've even some screen captures, I believe ;-) > > Can you tell me at least one NAT router which supports this? Many NAT > router are Linux based, but here I have never seen any special protocol-41 > NAT code at all. > > What so far is working mostly is the following scenario: > > Internet - NAT router - (only one) host using 6to4 based on the global IPv4 > address of the NAT router. > > This is working because most NAT router fall back into dump NAT mode if > they do not understand the protocol. And because they have a NAT state > table, they know which internal IP should get the paket back from the > Internet. > > Note, if you have a second box using same internally, you will get very > confusing results, because now you have flapping state entries in the NAT > router. > > Peter > -- > Dr. Peter Bieringer http://www.bieringer.de/pb/ > GPG/PGP Key 0x958F422D mailto: pb at bieringer dot de > Deep Space 6 Co-Founder and Core Member http://www.deepspace6.net/ > > --------------------------------------------------------------------- > The IPv6 Users Mailing List > Unsubscribe by sending "unsubscribe users" to [EMAIL PROTECTED] ************************************ Barcelona 2005 Global IPv6 Summit Call for Papers and information available at: http://www.ipv6-es.com This electronic message contains information which may be privileged or confidential. The information is intended to be for the use of the individual(s) named above. If you are not the intended recipient be aware that any disclosure, copying, distribution or use of the contents of this information, including attached files, is prohibited. --------------------------------------------------------------------- The IPv6 Users Mailing List Unsubscribe by sending "unsubscribe users" to [EMAIL PROTECTED]
