I'm trying to get my Debian box to work as a router for my laptop with XP Pro and for my stationary that has dual boot with XP Pro and Debian, but it aint working. It's working up to layer two, because I can ping between them and they're all showing up in the arp table.
This is how the
router is setup:
/etc/network/interfaces
Code:
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
auto eth1
iface eth1 inet static
address 192.168.0.1
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
auto eth2
iface eth2 inet static
address 192.168.0.24
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
I've tried with different broadcast addresses for eth1 and eth2, dont know if eth1 and eth2 are suppose to have the same broadcast address, which is it? What's the highest and the lowest address I can have as broadcast address? What is the highest IP address I can have when the lowest is 192.168.0.1?
The routers /etc/hosts
Code:
127.0.0.1 localhost.localdomain localhost gardian
192.168.0.94 Active #stationary hostname and IP
Am I suppose to add the windows workgroup name which is azagod.net to /etc/hosts and change the routers domain too? so
/etc/hosts will look like:
Code:
127.0.0.1 gardian.azagod.net
192.168.0.94 Active.azagod.net
I want
azagod.net to be the local networks domain name. What should I do to create my own domain if this doesn't work? which files needs to be changed on the router so I wont get the error message when I try to change it on the windows machines? now it only works with azagod.net as workgroup name on the windows box.
Router /etc/hosts.allow
Code:
ALL: 192.168.0.0/255.255.255.0
That's the only files I have altered on the router.
Every time I boot up the router I have to run: echo "1" > /proc/sys/net/ipv4/ip_forward. If I create a new file that looks like this:
Code:
#!/bin/sh
/proc/sys/net/ipv4/ip_forward
and save it as ip_fw in lets say /usr/sbin. Then I'm suppose to put /usr/sbin/ipfw in a file, which I dont remember the name and the location of, but then it will be run automatically at boot. I'm on the right way? If so, which file is it?
What I've done with the stationary windows macine:
C:\WINDOWS\system32\drivers\etc\hosts
Code:
127.0.0.1 localhost
192.168.0.1 gardian #the router
C:\WINDOWS\system32\drivers\etc\networks
Code:
loopback 127
azagod.net 192.168.0.0 # workgroup name and network address
windows stationary addresses
Code:
ip-address 192.168.0.94
netmask 255.255.255.0
standard-gateway 192.168.0.1
DNS-server X.Y.X.Y # not my real DNS-server address
DNS-server2 X.X.X.X
Got the DNS-server address from
/etc/resolv.conf
Then I created this iptables script as /etc/init.d/iptables.sh:
Code:
#!/bin/sh
iptables -F
iptables -t nat -F
iptables -P INPUT DROP
iptables -P OUTPUT DROP
iptables -P FORWARD DROP
iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE
I'm just getting started reading
Iptables Tutorial 1.2.0 so I dont know how this script is working with a dynamic internet IP address.
After that I did a chmod:
Code:
chmod 755 /etc/init.d/iptables.sh
to make it start at boot:
Code:
ln -s /etc/init.d/iptables.sh /etc/rc1.d/S99iptables
och
ln -s /etc/init.d/iptables.sh /etc/rc2.d/S99iptables
to activate it:
Code:
cd /etc/init.d
./iptables.sh
I've followed a
tutorial on the Swedish linux forum made by Ekenstein. Hope other ppl can se this thread and make an easy start on how to set up a router. But some where I made an mistake and I dont know where. If I have missed to leave any info, let me know and I'll fill out the blanks. Now where did I do wrong... Have I missed any software that needed to be installed exept for iptables? Any clues or ideas for an upgrade?
personally if you do want to keep them on the same subnet then please please just go spend $10 on a switch.
