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You can't really use any firewalls I can think of with only one interface, simply because there wouldn't be much security there. Although, you can use the same switch or hub or whatever for both interfaces and rely on layer 3 to separate your WAN and LAN networks. I know that, because I'm doing it at present. If for some reason you can't connect a second ethernet interface directly to your modem, you could leave it plugged in to the hub and connect your second ethernet interface to the hub as well. Either way, you really need a second ethernet interface on your m0n0 box. ----- Original Message ----- From: Melvin Backus To: "Kintaro -" <kintaroz at msn dot com>,m0n0wall at lists dot m0n0 dot ch Sent: Sat, 10 Jan 2004 20:44:25 -0500 Subject: Re: [m0n0wall] Problem setting up m0n0wall on a Single-NICmachine At 08:05 PM 1/10/2004, Kintaro - wrote: >Hi m0n0wall0r guys! > >I've got some very trivial problem with setting up m0n0wall. >The machine where it is running on has only *ONE* network card equipped, >so I run into problems when trying >to assign the interfaces to their network ports. > >After booting up my machine I choose the first entry in the setup menu. >m0n0wall will prompt me to choose a network interface afterwards: >"Valid interfaces are: > >rl0 00:50:BA:BB:30:24 > >Enter the LAN interface name:" > >I'm only able to select the only choice here... But doing so will make >selecting a WAN device impossible since >m0n0 will not allow to assign the interface to multiple network ports. >If I try to skip this and just hit enter, m0n0wall will bring me back to >the main screen without doing anything. > ><snip> In order to use m0n0 as the firewall you need for it to be connected between the LAN and your ADSL modem. Normally that means the modem is connect to the m0n0 machine. Assuming that your modem is connected via ethernet as would be indicated by your diagram, yes, you'll need another NIC in your m0n0 machine to do this. Then connect the WAN side of your switch to the LAN interface on the m0n0 machine. The network then looks like this: >--------- --------- --------- --------- >| | | | | | | | >| PC 1 | | PC 2 | | PC 3 | | ... | >| | | | | | | | >--------- --------- --------- --------- > | | | | > | | | | > ------------------ ------------------- > | > | > ---------- > | | > | Switch | > | | > ---------- > | > ---------- > | Gateway | > | | > | (m0n0) | > ---------- > | > --------- > | ADSL- | > | |----------- Internet > | Modem | > ---------- ---------------------------------------- Good, Fast, Cheap... Pick any two ---------------------------------------- --------------------------------------------------------------------- To unsubscribe, e-mail: m0n0wall dash unsubscribe at lists dot m0n0 dot ch For additional commands, e-mail: m0n0wall dash help at lists dot m0n0 dot ch |