On Fri, 2005-07-22 at 10:24 -0700, Patrick Nelson wrote: > FC3 (all up to date) > > This may seem simple but I'm changing ISPs and I have 2 internet facing > systems that also connect to the private network. One being the GW the > other being Mail. So I have the gateway working fine but I can not get > the mail server working in the changed network config. I just want to > make sure I'm not missing anything, because I think that the ISP is not > routing, switching, or configured correctly. > > -The two systems are attached to a Hub along with the connection to the > Internet. > -The gateway system is working fine with the new ISP changes (serves as > the DNS and GW) > -The mail server can be configured with the new ISP, but once I do that > system can not ping the internet > --however it can ping the internet side of the GW > --and the intranet. > -With ethereal I sniffed the mail server connection and it does appear > to get anthing back from the ISP GW > > Here are the changes that I make to mail server: > > 1. Use system-config-network to change the: > -IP Address > -Subnet Mask > -Gateway > 2. Change the IPTables Firewall Script to match the new config > 3. Turn off the firewall script for the first booting in the new network > config > 4. Reboot > > The booting goes fine but I can not ping anything other than the GW > system on the Internet side. > > Is there anything that I'm missing or might try? Or does this sound > like a routing problem on the side of my ISP? > Patrick, Post the output of ifconfig and route -n from both machines. It sounds like the default gateway on the mail server is incorrect. Bob...
