I was trying to set up an Ubuntu machine to act as an Internet connection for my whole LAN, via a wireless router's Internet port. Here's how I got it working:
Equipment:
- Ubuntu 11.04 Desktop with Ethernet port
- Linksys WRT120N Wireless N Router
- Huawei E620 USB Broadband Modem
- Ethernet cable
Hardware Setup:
- Huawei plugged into Ubuntu machine
- Ethernet cable plugged into Ethernet port
- other end of Ethernet cable plugged into the Internet port of The Linksys
Ubuntu Setup:
- connect the Huawei to the Internet
- disconnect the wired connection (Auto Eth0) in network tray icon
- create new wired connection (Edit Connections... > Add, enter a name) and select Shared To Other Computers from IPv4 settings tab.
- connect to this new wired connection
- note down the settings for this connection under Connection Information, and the DNS servers for the Huawei connection
Linksys Setup:
- connect a computer on the receiving side to the Linksys (wired or wireless)
- open a browser in this computer, navigate to Linksys (192.168.1.1 is default, user and password should be both admin)
- Change Internet Connection Type to Static IP
- Under Internet IP Address I put the number that came after the Ubuntu machine's IP address for this connection (again, not the IP for the Huawei connection), this was just a guess as I'm pretty clueless about how this works. So, my Ubuntu machine had an IP of 10.42.43.1, and I gave the Linksys [/I]10.42.43.2[/I]
- Subnet Mask should be same as the Ubuntu machine, 255.255.255.0
- Default Gateway should be the Ubuntu machine's IP address, 10.42.43.1 in my case.
- DNS 1 (etc.) should be the same as the Primary DNS (etc.) used by the Ubuntu machine in the Huawei connection.
- Click Save Settings.
That's it. Computers connected to the Linksys can now browse the Internet via the Huawei connection
Finally, after days of trying all sorts of things, I have an alternative to buying a router with a port for my USB modem. Using this method, I'm going to try to use a 1st gen. eeePC as a router instead
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