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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Hi, i need some help to configure firewall/router in Mandriva Linux.
I have installed Mandriva Linux on a machine which is suposed to be router
/firewall. I installed even shorewall during the installation of the system (i was asked if my computer was firewall computer). I use only text based installation of the Linux because I don't have appropriate graphic card and for me this is not very important. I have two network cards eth0 and eth1 in the router/firewall computer. The Mandriva firewall computer is connected to internet with eth1, and for local networking i used eth0.
The problem is: eth1 works fine and I got IP address from my internet provider but I can't "ping" computers in the local networks they don't have connection for some reason through eth0 card.
I have two questions:
1. how to configure local network?
2. how to dedicate ip addresses to computers in the local network so that they "remember" their ip addresses after they reboot?
look around for webmin in the package installer. and i cant remeber but once installed go to you browser and type something LIKE localhost:100000 . i know i may be wrong there. and it will ask you to login and click on what every you want and configure to your likings
I am using "shorewall"; now I can ping eth0, eth1 on Linux - firewall computer from my windows xp computer, i can ping from the Linux computer to the windows computer, i can start "Lynx" text webbrowser and go to the internet from the Linux computer but I can't reach the Internet from the windows computer : ( This is the last problem which I have to solve.
The linux / shorewall box has to be configured to forward ipv4 packets, and you will also need to enable NAT (called masquerading by shorewall). shorewall has very good documentation (sometimes in a shorewall-doc type package) There's an explanation for a standard 2-nic setup. and an explanation of NAT (masq) setup.
You will need to enable it; search the shorewall docs for the apropriate config file setting (I'm not at my system now), or for a quick and dirty test, "echo 1 > /proc/net/..." (I don't recall the precise name of the ipv4 flag in the proc filesystem).
there is a file which is called "masq" in the etc/shorewall catalogue and settings are as they are in the manual, but now I have another problem, when booting I got the message "shorewall version 1.2.12 does not work with kernel 2.2.20" now I use Debian, which version of shorewall do I need?