Still looking for an answer to this. Paul suggested a couple of things, but didn't work. Anyone else? Nate, Carl, Bob, etc? I've been reading through the different HOW-TO's to try and figure a problem out. I posted a little bit ago asking this question, but didn't receive an answer. I really need to get this going but can't find the answer to what I'm looking for in the how-to's. Problem: I have a home LAN comprised of various OS machines (Slack 8, Free BSD 4.2, Solaris 8, Win9x, Win2k), with the gateway machine having Slack 8 and an external 56k modem as my connection to the internet. The gateway machine has all of the connection information in there correctly, and I added the following lines to the end of my rc.local file for the internal machines to get outside: ipchains -P forward DENY ipchains -A forward -i ppp0 -j MASQ With this machine connected to my LAN, I can get it to dial. I hear the ISP pickup and the handshake begin. However, the modem hangs up because it can't get authorization. I'm assuming that it's because when my system is trying to authenticate to the ISP it's attempting to from my LAN instead of the ISP. I ran into this once before on my laptop, but I just disabled my LAN and redialed. However with the box that's dialing being my gateway, that isn't an option. Below is the closest thing to an answer that I can find/think of that might be causing this issue. IIRC, this came out of the PPPD how-to. <<Speaking of the options file, one of the things that MUST be in there no matter how you start pppd is this: '192.0.2.1:XXX.XXX.XX.XX'. What this is is 'localIPaddress:remoteIPaddress'. You need it there because normally pppd can fill in the blank itself, but fails when connecting to an emulator.>> I've read the Networking and Net How-to's but didn't seem find anything that addresses this issue. Can someone tell me if this is the cause of my issue why I can't successfully connect to my ISP through modem dial-in? I used to have ISDN with this working, but I don't recall what I did previously or where I got the information. Also, the box has been reloaded since I got rid of my ISDN.