Lan to Wan reprise

[Claude Jones]

Bob Chiodini wrote:

>On Sun, 2005-03-13 at 04:31 -0500, Claude Jones wrote:
>  
>
>>I had successfully configured an FC3 box at work to serve as internet 
>>router, firewall, web server, DHCP server to my Lan, etc. Tonight, I 
>>moved it to its final destination, my home, and I'm completely stuck on 
>>one issue.
>>The web server works.
>>The box has internet access.
>>Machines on the Lan are getting DHCP assigned IP addresses. They are 
>>also able to see my lone web page.
>>However, the machines on the Lan can't get past the firewall. It's not a 
>>DNS problem because it doesn't go away if you put an IP address in. I 
>>can ping the Wan NIC from the LAN but nothing further than that.
>>I've reviewed the procedures over and over  that I used successfully, 
>>and I can't find the problem.
>>DHCPD loads without errors.
>>I've checked and rechecked the firewall and SELinux settings, and they 
>>appear to be the same as at the office.
>>I've reviewed the network settings for my NICs twenty times.
>>IP forwarding and masquerade have been set up.
>>What have I overlooked??? I have to have this running in three hours so 
>>any suggestions would be greatly appreciated!
>>
>>Claude Jones
>>Bluemont, VA, USA
>>
>>    
>>
>
>IP Forwarding maybe?  net.ipv4.ip_forward = 1 in /etc/sysctl.conf.
>
>Bob...
>
>  
>
Thanks for the suggestion, but that is set correctly. This box was 
functioning perfectly at work. I thought it was going to be a simple 
matter of entering the new external IP address in all the relevant 
places. I'm sure the answer is staring me in the face. Sometimes, those 
are the hardest to see.