Götz Reinicke wrote: > Hi, > > we have the task to setup a vpn tunnel between a remote network and a > vpn gateway (astaro firewall) which is located behind my shorewall (like > in this setup: http://jixen.tripod.com/ -> Subnet-to-Subnet > configuration with a NATed gateway. but with other IPs ;-)) > > I'd like to find out, if the problem is the shorewall or the astaro > firewall. > > So far the gateways can communicate through our shorewall (ping, > tracerout, https-access), but the VPN ID is wrong (thats the information > I do get from the remote admin.). > > The remote connection is established to the public ip aaa.aaa.aaa.aaa, > but the response is from the private ip bbb.bbb.bbb.bbb. > > I'v read about NAT Traversal (NAT-T) and read the shorewall > dokumentation (http://www.shorewall.net/VPNBasics.html and > http://www.shorewall.net/manpages/shorewall-tunnels.html) but I'm not > sure, that I'v understand everything right. > > May be you could give me a hint on the following question: > > - Do I have to set up a tunnel config on my shorewall? (I thought it > would be enough to set up nat-to-nat from the public IP to an internal > IP and open the requierd ports from the remote gateway to the internal > gateway.)
You need no tunnel configuration. You must use nat-traversal on the VPN link if you want it to work reliably. In that case, you simply need to accept UDP 500 and UDP 4500 in both directions. > > All I've read so far concernes traffic between the shorewall an other > hosts (like described here: > http://www.shorewall.net/manpages/shorewall-tunnels.html) and not the > traffic between two remote hosts. > > > Thanks for any hints pushing me into the right direction! As always, we need the information requested at http://www.shorewall.net/support.htm#Guidelines in order to be very helpful. -Tom -- Tom Eastep \ Nothing is foolproof to a sufficiently talented fool Shoreline, \ http://shorewall.net Washington USA \ [EMAIL PROTECTED] PGP Public Key \ https://lists.shorewall.net/teastep.pgp.key
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