Hi Jay!
Thanks to your help I am making progress on my networking problems.
1. Now I have internet connectivity by adding the GW to the eth0-DHCP configuration.
2. Now I also can bring up the LAN side on eth1 by removing the GW from the settings and using 192.168.0.1 ip address and 255.255.255.0 mask.
3. I have a Fedora PC connected to eth1 using a crossover cable. Before I had internet connectivity with the following settings on the client PC (adjusted for new network schema):
IP: 192.168.0.50 Mask: 255.255.255.0 GW: 192.168.0.1 (= eth1 on PC connected to cable modem)
DNS: same entries as on PC connected to cable modem.
Then I adjust /proc/sys/net/ipv4/ip_forward and also modify /etc/sysctl.conf so that I do not have to echo to proc after each reboot.
Then I type (as root) on the PC connected to the cable modem:
iptables --table nat --append POSTROUTING --out-interface eth0 -j MASQUERADE iptables --append FORWARD --in-interface eth1 -j ACCEPT
So, when I still was at FC1 it worked like a charm. Now as FC3 the following happens at the client PC
(192.168.0.50):
1. ping 192.168.0.1, OK works! 2. ping the IP number of either of the DNS servers, OK works! 3. ping the charter.net GW, OK works! 4. ping a non-IP, thus requiring DNS name resolution e.g. ping www.cnn.com, the I get:
www.cnn.com unknown host. So for some reason I do not
get DNS to resolve host names even though everything
else now works.
/etc/resolv.conf is the same now on 192.168.0.1 and 192.168.0.2
What is the "hosts" entry in /etc/nsswitch.conf on the client PC?
Try the "dig" tool to diagnose DNS problems on the client (part of the bind-utils package):
$ dig @68.112.12.36 www.cnn.com
Does this work?
Paul.
