I work for an ISP and Im running a 4.1 FBSD w/ 2 nic cards w/ nat and ipfw as a gateway machine (also known as a duel home host) for my internal network w 70 nodes...im trying to setup a gre-tunnel between my 192.168.0.1/24 network and our parent companies 192.168.150.1/24 in another state. on MY end on the BSD box: x10 = my PUBLIC interface is 208.130.62.10 <-------outside to internet also NAT runs on this de0 = my PRIVATE interface is 192.168.0.1 <------my internal network goes thru this On the REMOTE end they are running a Cisco PIX router..w/ ip 204.122.73.34 once i compiled my kernel options in ( netgraph, netgraph_PPTPGRE, iptunnel) ...i did #gre-tun -local 208.130.62.10 -remote 204.122.73.34 -source 192.168.150.1 -key xxxxxxxxxxx the tunnel interface is up ..when i do "ifconfig" tun0 shows as UP like below tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500 inet 192.168.0.1 --> 204.122.73.34 netmask 0xfffffff8 inet6 fe80::260:8ff:fe93:a8e5%tun0 --> :: prefixlen 64 scopeid 0xc Opened by PID 8691 the way i understand this ...once everything is running...we should be able ping each others private IP space....although i cant...If theres anything anyone has to add to this...hints, tips...suggestions ..it would be most appreciated...TIA....help please ??? To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-stable" in the body of the message