On Thu, 2005-07-28 at 13:19 -0700, Patrick Nelson wrote:
Bob Chiodini Wrote:
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:
- 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...
Sorry for the delay I was out on a site.
Here it is:
- ifconfig -
eth0 Link encap:Ethernet HWaddr 00:60:B0:C3:D4:C1 inet addr:206.58.200.39 Bcast:206.58.201.255 Mask:255.255.254.0 inet6 addr: fe80::260:b0ff:fec3:d4c1/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1136 errors:0 dropped:0 overruns:0 frame:0 TX packets:492 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:195090 (190.5 KiB) TX bytes:37578 (36.6 KiB) Interrupt:9 Base address:0xece0
eth1 Link encap:Ethernet HWaddr 00:03:5D:07:C1:32 inet addr:10.1.1.1 Bcast:10.1.255.255 Mask:255.255.0.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1310 errors:0 dropped:0 overruns:0 frame:0 TX packets:1310 errors:3 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:655425 (640.0 KiB) TX bytes:221435 (216.2 KiB) Interrupt:9 Base address:0x100
lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:440 errors:0 dropped:0 overruns:0 frame:0 TX packets:440 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:61126 (59.6 KiB) TX bytes:61126 (59.6 KiB)
- route -n -
Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 206.58.200.0 0.0.0.0 255.255.254.0 U 0 0 0 eth0 10.1.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1 0.0.0.0 206.58.200.1 0.0.0.0 UG 0 0 0 eth0
Does anything here show a problem on my side rather than the ISP? Thanks!
Patrick,
Is this from the mail server? What does the gateway look like?
Can you ping 206.58.200.1? Do you get your IP from your ISP via DHCP? The netmask is not natural for Class C.
Bob...