Hi Andrew, Thanks for the reply! First answers to your questions:
1) Yes, this is a dial-up connection. It is actually using a Verizon Wireless connection to a cellular modem - the KPC650. There are tons of people running this configuration on Linux, but they do not seem to have the issues that I have with Dynamic DNS. 2) Yes, I technically do have 2 interfaces, the modem and an Ethernet connection. However, after my previous post I blew the system away again. Now I have only the modem and am trying to set up dynamic DNS before I do anything else. 3) Yes, I did use a guide online to set up a firewall using shorewall. However the rules are configured to allow the box to connect to the outside. Again, I blew the system away and reloaded fresh without the shorewall. Still having the same issue. 4) I have googled EVERYTHING I could think of over the past 17 hours. No help. There is just way too much documentation out there that uses the same search terms. I found no valid articles for my case. Now for more information. As I mentioned, I blew away my system and started all over. I did a "linux26" with all default install options and "manual" aptitude configuration, so again I have no GUI. I did not get wvdial this time. After a bit of struggling I got pppd to work! I can now get on, ping out any IP on the Internet and ping my linux box through the Internet. To get my modem to work I had to do the following: (I got these instructions from other people using this modem in a Linux environment and some that I figured out by dumb luck) modprobe usbserial vendor=0xc88 product=0x17da maxSize=2048 (I have to do this every time I reboot. I am not sure why, but it is very annoying) ln -s /dev/ttyUSB0 /dev/modem (I have to do this only once, otherwise the dialer uses device "modem" which is not linked to any actual port) nano -w /etc/ppp/options (I add these because they are not supported by my modem and cause a disconnect every 2 minutes) passive silent -all After all this, I can dial away, ping, etc. Far as diagrams, I am not good at this but I will give it a shot... Desired config (as seen in previous posts. Ez-ipupdate does not work here): [Web Server on my LAN]>---> eth0 (LAN) on static IP >[My Linux Box] <- - - ppp0 {Internet} Configuration in which ez-ipupdate works like a champ: [My Linux Box] <- - - Eth0 with DHCPed address from my Cable Router-{Internet} Current config after I blew away my box this config still does not work: [My Linux Box] <- - - ppp0 with DHCPed address from Verizon -{Internet} Note: While connected through my ppp0 with the ability to ping www.google.com with 0% packet loss and 200ms, doing wget www.google.com fails with: http://www.google.com => 'index.html' Resolving (bunch of IPs bound to the domain) Connecting www.google.com[66.233.16199]:80... Failed: Connection Timed Out And yes, this is a notebook that I would like to use as a cellular router. I am right now 99% convinced that the problem is that outbound TCP traffic is not being allowed out through my ppp0 connection. ICMP works fine... Tyson Varosyan Technical Manager, Uptime Technical Solutions LLC. [EMAIL PROTECTED] www.up-times.com 206-715-TECH (8324) UpTime/OnTime/AnyTime -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]