Network Help

[tmaged]

I've posted about my issue before with a Toshiba 200L. I was able to scan to email until I had to replace the NIC.
Well I was finally able to pick up a hub to do a data capture. I've attached the screenshot of the capture. After the query of the DNS server for the IP address of the SMTP, for some reason, ARP is looking for the mail server on the LAN ?? At least that's the way I'm reading things. What would cause this. Is it because I'm using the IP address of the router as the DNS server ???
Thanks for any help.

[Mr Spock]

I usually ping the server name and type in the ip address of the server.
That takes the dns lookup out of the issue.
Also I use a local computer and ipconfig to see what dns and gateway they are using to set one up. It may be that the gateway is not the router ip address but something different.

[tmaged]

I did try just the IP address of the SMTP server. When I do that, ARP just polls looking for 74.126.13.50. The gateway was the only other thing I could think of. I think I just did ipconfig/all to get all the settings & I know it was 192.168.1.1 for the DNS server. I wondered why I didn't get an external DNS server ? Thanks for your input !!

[unisys12]

When you ping the SMTP server, from the CMD prompt, are you getting a ping back? From the packet capture, it looks like you are. What it looks like to me is that your router is having problems resolving names. Your router mostly likely is hosting your DNS server.

If you see a response, in the cmd window, when you ping the SMTP server, then I would try to putting the IP address of the mail server in the MFP and not the name. See if you can mail from the MFP then. If so, then leave it this way, temorarily, unitl they can replace the router. At that time, go back and change the IP address back to the SMTP server name.

Best of luck

[jneezy2008]

Using the SMTP IP versus hostname is a great way to test domain name resolution. 4.2.2.2, I believe, is an outside public DNS that you can use as DNS.

[tmaged]

Alrighty men, after doing a little research & talking with an IT buddy, I was on the right track. ARP is a LAN protocol. The gateway wasn't in correctly, therefore it was never able to find the IP address outside of the network. DNS did resolve the name, but without the gateway it couldn't get out. Maybe this will help somebody else.
Thanks for the input.