Hi Folks, I'm gong to try a simpler and more general version of my query. Three machine, A, B and C. All 3 on one LAN with coax cable linking their NICs. This LAN is on net 192.168.0.* In addition, C has an ADSL modem/router on a second NIC, connected with RH45 cable. This 2nd NIC is on bet 192.168.1.* A and B have a default route to C. This clearly works in each case as verified by performance when C is simply used as a phone-modem dialup (i.e. without ADSL): C, and also A and B through C, can all access the outside world. With ADSL on C, C has a default route to the IP address of the router. With the ADSL synced to the line, this also works, but from within C alone, as verified by access to the Web. However, now A and B cannot route out through C, despite the fact that the default routes A->C and B->C are good, and the default route C->Web is good. 'traceroute' to the router's IP from A or B gets an immediate good response from C, but then goes into asterisk mode. 'traceroute -d' returns "network unreachable". So packets are reaching C. SO, for some reason, despite a working default route, C is unable to route packets coming in from A or B to its default route. So, QUESTION: What can cause this? What should I be looking into? (BTW, please don't suggest things like putting everything on one RJ45 network, since this involves physical changes that I don't wnat to get involved in. This should be a simple question of configuring one machine to act as a router between two networks.) With thanks, and best wishes, Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <Ted.Harding@nessie.mcc.ac.uk> Fax-to-email: +44 (0)870 094 0861 Date: 26-Oct-05 Time: 22:34:03 ------------------------------ XFMail ------------------------------