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Old 08-28-2012, 02:39 AM   #1
drpaudel
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Registered: Mar 2008
Posts: 13

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Getting problem in Static Routing in Debian


I am newbie to Linux networking.
I have 2 NICs in Debian host. eth0 is running DHCP and its setting is
Code:
allow-hotplug eth0
iface eth0 inet dhcp
eth1 is running in static IP and setting is as below

Code:
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
Problem
eth0 is getting dynamic IP and internet is okay.

I am connecting my Client PC via eth1 having IP 192.168.0.2 Now I need to add proper route. Where and what shall I require to add route in order to access internet service in my Client PC. Is there anything more remaining things to be done.
 
Old 08-28-2012, 11:13 AM   #2
eSelix
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Registered: Oct 2009
Location: Wroclaw, Poland
Distribution: Kubuntu
Posts: 1,190

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To enable routing you need to make a command
Code:
echo 1 > /proc/sys/net/ipv4/ip_forward
But with your configuration you also need a NAT. Because addresses 192.168.*** will not be routed to Internet, it is for private local networks. For enabling NAT, you need to add iptables rule:
Code:
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
And FORWARD ACCEPT rules in filter table if you use it. By default, I think, all is accepted - you should change this if you have other connected clients you want to not be routed. These commands need to be executed after every boot, so write them on starting script, for example /etc/rc.local.
 
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Old 08-29-2012, 03:01 AM   #3
drpaudel
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Registered: Mar 2008
Posts: 13

Original Poster
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Thanks

It work fine. Thank you eSelix
 
  


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internet connection, sharing, static route


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