The problem is that some visitors might need to connect to the home VPN gateway(s) from my work office. Thus, we could not decide which VPN gateway solution they use.
On the other hand, what is the status of FreeBSD on the support of NAT-T? Would it be supported in FreeBSD in later issues, e.g. FreeBSD 5.4 or 6?
Regards, John Mok
Tom Skeren wrote:
John Mok wrote:
Dear Tom,
Thank you for your quick reply.
I would like to know more on the issue. To my understanding, since the source address of the IP packet from the client would be modified on the NAT, normally it would fail AH check on the IPsec VPN gateway, or the FreeBSD NAT has built-in compliance with RFC3947?
Yeah, that's correct, and I don't think traversal is supported in FBSD. However, you might be able to use ipsec and racoon to tunnel the NAT to the vpn. I don't know what device is at the other end of the tunnel. I have a 7 office wan tunneled with FreeBSD gateways. Works real spiffy. You might look into that option.
Thank you, John Mok
Tom Skeren wrote:
John Mok wrote:
Hi,
I'm new to FreeBSD. Is it possible make a FreeBSD box with firewall + NAT, such that client PC(s) from the NATed internal network could connect to a VPN gateway on the Internet :-
client PC ----- FreeBSD Firewall + NAT ---- Internet ---- IPsec VPN gateway
192.168.x.x/16 (e.g. Checkpoint FW-1)
(VPN client)
I hope someone could help to advise what software is required on the FreeBSD box to NAT traversal work and where to get the HOWTO(s)?
Should be no problem.
<http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/network-natd.html>
Thanks a lot.
John Mok
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