For a cable modem, you will need to ethernet cards. One connected directly to
your cable modem grabbing the 24.x.x.x address from DHCP and another ethernet
card plugged into your hub/switch with an IP address within your private LAN
192.168.0.2. I assume that is what IP you where using with ipchains and
dial-up modem. The ipchains should work then.
-Tammy
On Thu, 15 Jun 2000, you wrote:
> I just got a cable modem and would like to run ipmasq or ipchains
> through the linux box for the other computers on the LAN. I have RH
> 6.1, ipchains 1.3.9. I had it set up fine before the cable modem using
> a dialup modem. I used linuxconf to change the client network
> settings. I can see the modem and work fine with it if the IP address
> is set to the assigned ip address by the provider (24.12.124.xxx), but
> no other computers on the internal net (192.168.0.2, etc). If I change
> the IP address of eth0 to 192.168.0.2, I no longer get the modem
> connection. In ipchains (actually, the script I use to start
> ipchains), it picked up on the ppp0 when it connected (I guess), there
> is a line that says: echo "1" > /proc/sys/net/ipv4/ip_dynaddr. What is
> the equivilent of that when you have a static IP. My question is how do
> you assign 2 IP addresses to one adapter ,24.12.124.xxx and 192.168.0.2,
> so the modem sharing clients can use 192.168.0.2 as their router addr
> and the modem sharer can actually use the real IP addr, 24.12.124.xxx.
>
> This is the info the provider gave me:
> Primary DNS: 24.2.212.12
> Secondary DNS: 24.2.212.14
> Default Gateway: 24.12.124.1
> Netmask: 255.255.255.0
> Broadcast Addr: 24.12.124.255
> IP Addr: 24.12.124.xxx
>
> Where do I put this info, whether through ifconfig or linuxconf, in
> /etc/hosts and /etc/resolv.conf, etc.
>
> Thanks,
> Michael
>
>
>
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