Michael B. Trausch wrote: > Hi all, > > I am needing some quick help here... I am thinking of purchasing an > ASDL modem, as my ISP is offering a 24/7 1.544Mbps connection via this > method at $35/mo plus the $60 per year I pay currently for access > through them. I am wondering if there are even drivers out yet for ASDL > devices on Linux. That's my *first* concern.... secondly, if I use the > ASDL modem via an Ethernet hub (as my ISP suggests would be best to > network a whole house to the Internet), would I even need the ASDL > driver? I know next to nothing about ADSL. However, there is a mini-HOWTO available on the topic at http://metalab.unc.edu/mdw/HOWTO/mini/ADSL.html . > And, lastly, how would I make it so that say, MACHINE_ONE would be a > Linux machine, providing a proxy/gateway for MACHINE_TWO, running > Windows 98, on the Ethernet network? (The ISP only allows for *ONE* > static IP address, and therefore, I conclude that a proxy or somehow > different type of network needs to be built, with the Linux box as the > bridge? I most *definately* don't want the Win98 box to have the static > IP from my ISP.) > Your requirements seem to indicate that you need to be running ip-masquerading. With such a setup, all packets destined for the internet from machines other than the gateway machine (which runs ip-masquerading - and in your case is going to be the Linux box), will be rewritten by the gateway so that the ip-address is the ip-address of the gateway. In order to distinguish between packets it originates, the gateway machine uses port numbers also. So, if your Win95 machine had an ip-address of 192.168.0.2, and your linux box had an internet ip-address of w.x.y.z, packets from your Win95 box would be rewritten as originating from w.x.y.z and port number p (where p is a port number picked by the gateway). The reverse translation will also be done for incoming packets, so that your gateway will correctly send packets to your Win95 box. A limitation of ip-masquerading is that you can only run protocol clients on the non-gateway machines. Thus you can run a web-browser (http client) on your Win95 box, but you wont be able to run an http server. There is an ip-masquerading HOWTO also available at the above mentioned sites. Or, it most probably will be there in your /usr/doc/HOWTO directory. Regards, Kenneth -- There is no such thing as luck. 'Luck' is nothing but an absence of bad luck.
