Using the Redirector :: Proxy Servers

Using a Proxy Server

To configure for a proxy server

In the Serial/IP Control Panel:

1. Click Advanced.

2. Click the Proxy Server tab.

3. Select the check box Use a Proxy Server.

4. If the proxy server requires a login, type credentials in the Username and Password fields. 

5. The Protocol Type, IP Address, and Port Number are required. Type values in these fields if you are not going to use the Auto Detect feature.

6. To automatically locate the proxy server and detect the settings, select the Auto Detect button.

7. If the automatic detection failed, type values in Protocol Type, IP Address, and Port Number. The value of IP Address can be entered as a hostname.

8. Click Test to use the settings to contact the proxy server.

9. Click OK to record the settings.

Tips

The Auto Detect command takes the following actions:

1. A DNS lookup of “wpad” is attempted. 

2. For each IP address returned by the DNS lookup, the redirector attempts protocol detection for each supported protocol (SOCKS v5, SOCKS v4, in that order).  This is done by attempting a TCP connection to the IANA-defined port for each protocol, then (if successful) attempting proxy operations.

3. If the DNS lookup came back empty, or if no proxy server protocol has been detected, the redirector attempts protocol detection on each default gateway in the routing table.

4. If no proxy server protocol is detected, the Auto Detect operation is terminated and no settings are automatically entered.

If operation with a proxy server is not working as expected, the following resources may be of help:

• Verify with the "ping" command (in a DOS prompt window) that the proxy server responds at the expected IP address.

• Use the Test command. This conducts additional checks that can not be readily performed otherwise.

The Auto Detect and Test operations will typically take less than 10 seconds.  If either of these operations appear to be hung, use Stop button to terminate them.

If the proxy server requires a login, the Auto Detect and Test operations will fail if Username and Password have not been provided.

The Username and Password credentials are transmitted to the proxy server as plaintext.  A Test operation will display an error dialog if these credentials are required by the proxy server but not yet entered.

If a proxy server is being used, related information will appear in the Trace display of the Serial/IP Port Monitor. details

 Notes

The above references to IP Address and Port Number are for the proxy server and have nothing to do with the settings of the same name in the Serial/IP Control Panel.

  Related Topics

Proxy Server Support