hi there i found your project and tried to bridge two ppp devices. you say (http://bridge.sourceforge.net/faq.html) that this is possible: ... "Linux bridging is very flexible; the LAN's can be either traditional Ethernet device's, or pseudo-devices such as PPP, VPN's or VLAN's. The only restrictions are that the devices:" ... i tried this but got "br_add_interface: Invalid argument" when adding a ppp device to the bridge. adding an ethernet device works perfectly! 00:07:21 protector ~ # brctl addbr br0 00:07:22 protector ~ # brctl addif br0 eth2 00:07:30 protector ~ # brctl addif br0 ppp0 br_add_interface: Invalid argument the ppp's are done with pppd and pptpd (poptop) 00:09:39 protector ~ # pppd --version pppd version 2.4.2 00:09:44 protector ~ # pptpd --version PoPToP v1.1.4-b4 any ideas? best regards, armin. -- armin langhofer snail: fischer von erlachstr. 29 snail: a-5020 salzburg phone: +43 699 11648495 email: office@langhofer.at gnupg: http://langhofer.at/pubkey.txt