On Thu, May 22, 2014 at 9:57 PM, <csanyi...@gmail.com> wrote:
> Hi,
>
> I wish to set up my home headless power pc box as a gateway/router ( GW ).
> I can connect to it with SSH only.
>
> Before, I set up this GW to get an IP address from my ISP with
> dhcp.client.
>
> Now, I ask a static IP address for this GW and don't know how to setup
> eth0 interface so I can connect to Internet from this GW and to forward
> Internet connection to my LAN.
>
Do you mean that eth0 on GW has a static IP address? If so, you
probably have to modify /etc/network/interfaces for eth0, e.g.
iface eth0 inet static
address 192.168.0.1
netmask 255.255.255.0
# If you have IPv6
iface eth0 inet6 static
address ::1
netmask 64
Change the IP address / netmask to your own.
> My ISP
> |
> --- eth0 ( GW ) --- eth1
> |
> LAN
>
> This is my home network that I want to set up.
>
> The state of this setup so far is that that I can SSH into GW only, but
> can't reach the Internet, and from LAN I can't reach Internet too.
>
> Can I get advices how to setup my home network?
>
You have to allow forwarding from your LAN to the outside internet. In
/etc/sysctl.conf, enable
net.ipv4.ip_forward=1
# If you have IPv6
net.ipv6.conf.all.forwarding=1
There may be other options in /etc/sysctl.conf that you'd want to
change. Read the associated comments and manpages.
If you are setting up a gateway, you might want to look into the
firewall iptables/ip6tables. The standard procedure is to drop all
packets, allowing only specific ones to pass through.
Regards,
Vincent Chen
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