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Thread: Linux office gateway
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- Join Date
- Aug 2006
Linux office gateway
I currently running a Fedora Core 4 server with two NIC.
eth 1 is connected to an ADSL router. The ADSL router is run in bridged mode.
I have managed to setup an adsl connection via adsl-setup and ifup ppp0 works
fine the linux box surfs and works fine
eth0 is attached to a hub. The Fedora server is running dhcpd and issues ip to
all machines on the network.
My question is, I want the client machines connected via eth0 and hub, to be able to
surf via the ppp0 adsl connection. I have added the ip masquerading to the ppp0
connection and /proc/sys/net/ipv4/ip_forward is set to 1.
Do I need to add routing rules to get eth0 to forward internet request to the ppp0
or do I need to do something to the iptables.
eth1 = ip 192.168.1.250
eth0 = ip 126.96.36.199
ppp0 = ip dynamic from ISP, ISP also sets DNS upon connecting.
adsl router = ip 192.168.1.254, running bridged
dhcpd = Gives ip's in range 188.8.131.52 - 184.108.40.206 with router option set to 220.127.116.11
One more question. If I try to go to www.google.com via one of the windows clients
which is connected to hub with dhcp set. Is there a way to check if the Linux box has received the request and where it sends it to ?
If anybody can help, I'd really appreciate it. I not linux guru but I would like to try and make this work.
- Join Date
- Dec 2004
Just download Firestarter for this task. It will integrate seemlessly with your intended setup and will remove a lot of the guess work. For an easier setup, make the entire box a firewall appliance by using either Smoothwall or IPCop. Either of these firewall distros will suffice and will provide detailed logging for inbound and outbound TCP/IP traffic.
this is all handled thru ip masquerading on iptables.. but if i could suggest an easier, faster, and better managable solution.. why not setup a proxy server? I have one on a my slackware server here at work called "middleman." Works very well. If you don't want to do that then we can help you with the masquerading rules.