Ok...I got a bright idea earlier.... I have a linux machine at work (where we don't really have linux machines...its one of the 3 that I know of in existance on our entire network (of at least 10 000 users) ) Anyway...mine is on DHCP like most of the network and a new one which was setup is also on DHCP (mostly because im a tech and he is at the helpdesk and neither of us can justify why we need network engineering to give us static IPs) One of the Linux machines I know of has a static IP (this guy is some important doctor and I am sure I coul dget him to let me use his linux machine or one of his slowaris runnin sun stations if I asked ) Here was my idea: I want my machine and my friend at the helpdesks computer to be able to communicate (maybe even share soem NFS mounts ;) ) The problem is we are on DHCP...dynamic adressing which seems to change at least every few days My idea was ...can I setup a "virtual network" layered on top of our ethernet / TCP/IP network? My idea was to use netcat and pppd to make a ppp connection through a tcp/ip socket... then assign my own Private IP adresses (10.*) to the ends of the ppp connection then I could have the machine with the static IP as a central hub for the other 2 systems to connect too thus the other two machines could have "Static IPs" for talking to eachother ok...I know there must be a better way to do this...I think its called tunneling?? and I believe there is some kernel level support fo rit... I wanted to find a way to do it my way... the idea was this: use netcat on both systems to open the equivalent of a "pipe" and then attach pppd to it I tried this on the local machine...maybe someone can say why this setup didn't work first I made 4 named fifos's in1 out1 in2 out2 then cat in1 | nc -l -p 1555 | cat out1 cat in2 | nc 127.0.0.1 1555 | cat out2 ...both connected....and netstat showed a conenction between the two then I tried this... I cated a file into in1 then I did "cat out2" on another VT nothing came out... I would have thought the end result would have been... data in -> in1 -> nc -> tcpIP -> nc -> out2 -> data out any ideas why did didn't work (suffice it to say "pppd <out1 >in1" and the same for in2 and out2 ... they didn't connect.... any ideas? (and yes I know this is a stupid way to do it but.... I would think it should work! ) -Steve
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