Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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Hello, digiplaya here. My LAN works on my Mandrake Linux 9.2 box, but not the Internet. I'm currently using Cox High Speed Internet in Arizona, and someone told me that it was compatible with Linux.
If you have any suggestions or know how to fix my problem, please reply.
I also have Cox High speed internet in Phoenix. I am running redhat 8.0 and it works fine. You dont need special software for Cox HSI all you have to do is set Linux to Dynamically assign an ip address. The modem will act as a router and assign a addess and DNS servers to linux.
You might also need to add some DNS servers for your ip address if it is static.These can be found from you router. If you setup a static address it might not automatically assign DNS servers.
Here are a couple of COX's DNS servers
68.2.16.25
68.2.16.30
68.6.16.30
Also if you are not using a router any time your cable modem is changed to a new device with a different mac you must hard boot the modem. Cox only tracks the Mac on you modem and they provision the modems based on the MAC address.
the cox modem will only give 1 ip address, unless you paid for more that one, otherwise you need to use a Router with NAT... what ip address are you getting on the linux box that cant connect to the internet?, <just the first 2 parts. *.*.x.x
In the very beginning, I tried using a NETGEAR switch box (like a hub) with a REALTEK 8139 Built-In Ethernet Card. It was hooked to my dad's router (which is also NETGEAR) which the Cable modem is hooked into.
I tried this configuration with DHCP on with my Mandrake Linux box (not static, even though static only works on for my LAN not internet) but still no internet. It could not detect the IP address, and so on.
However, my dad's computer is currently running the same version of Linux I am running, Mandrake LInux 9.2, and the internet works fine. It is also hooked directly to the router.
Distribution: OpenBSD 4.6, OS X 10.6.2, CentOS 4 & 5
Posts: 3,660
Rep:
If the router is not doing NAT, then you cannot get an Internet connection because your dad's computer already has the only Internet IP assigned to it. You need to find out if his router is configured for NAT. If it is, you need to find out of that router is also assigning IPs by DHCP. If it is, you need to configure your computer for DHCP. If it's not using DHCP for the LAN, then you need to statically assign yourself an IP address in the same network as the inside NAT network from the router. You will also need to modify your routing table and point the default route (0.0.0.0/0) to the inside IP of the router.
Probably you have everything setup right except for the default route. If you can get to anything on the LAN (including being able to ping your dad's computer) than most likely the only thing missing is the correct default route.
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