Configuring a network user’s web browser for access through a proxy server can be a chore. The Automatic Proxy Discovery feature in 602LAN SUITE 2004 (build 2004.0.05.0413 +) provides 3 methods for distributing proxy settings to your users with
minimal configuration hassles.

Method #1: Enabling Automatic Proxy Discovery by DNS

The Automatic Proxy Discovery by DNS feature allows you to distribute WPAD information by the DNS proxy server included in 602LAN SUITE. To enable Automatic Proxy Discovery by DNS in 602LAN SUITE, do the following:

1. Open 602LAN SUITE 2004, and click Settings, then Advanced Configuration.
2. Click the Proxy tab.
3. Click the checkbox to add a checkmark to the HTTP/HTTPS/HTTP-FTP proxy checkbox.
4. Click the checkbox to add a checkmark to the Enable automatic discovery checkbox.
5. Click the checkbox to add a checkmark to the DNS proxy checkbox.
6. Click Save to save the settings.
7. Configure the network user’s TCP/IP information to use the IP address of 602LAN SUITE as the DNS server.
8. Configure the network user’s web browser to Automatically detect settings (MSIE) or Auto-detect proxy settings for this network (Firefox).

NOTE: If you are using a third party DNS server and do not wish to use 602LAN SUITE’s built-in DNS proxy, you simply need to add a “wpad” record as an Alias and point it to the IP address of 602LAN SUITE. Please consult your DNS server documentation for information on adding a record.

Method #2: Enabling Automatic Proxy Discovery by DHCP

The Automatic Proxy Discovery by DHCP feature allows you to distribute WPAD information by the DHCP server included in 602LAN SUITE. To enable Automatic Proxy Discovery by DHCP in 602LAN SUITE, do the following:

1. Click Settings then Advanced Configuration in 602LAN SUITE.
2. Click the DHCP tab.
3. Enable the DHCP Server option.
4. Enter the Start IP Address and End IP Address you would like to use.
5. Select the 252 wpad option from the DHCP option: select list.
6. Enter the DHCP option value: as http://serveripaddress/wpad.dat, where serveripaddress
   is the internal IP address (e.g. http://192.168.1.1/wpad.dat).
7. Click Add to add the DHCP option, then Save to save your settings.
8. Configure the network user’s TCP/IP information to use DHCP (Obtain an IP address automatically).
9. Configure the network user’s web browser to Automatically detect settings (MSIE) or Auto-detect proxy settings for this network (Firefox).

NOTE: If you are using a third party DHCP server, you may add this DHCP option to your DHCP server. Please consult your DHCP server documentation for information DHCP option 252.

Method #3: Enabling Automatic Proxy Discovery by URL

The Automatic Proxy Discovery by URL feature allows you to distribute WPAD information manually by specifying the URL to the WPAD.DAT file on 602LAN SUITE. To enable Automatic Proxy Discovery by URL in 602LAN SUITE, do the following:

1. Open 602LAN SUITE 2004, and click Settings, then Advanced Configuration.
2. Click the Proxy tab.
3. Click the checkbox to add a checkmark to the HTTP/HTTPS/HTTP-FTP proxy checkbox.
4. Click the checkbox to add a checkmark to the Enable automatic discovery checkbox.
5. Click Save to save the settings.

To configure the automatic configuration script in Microsoft Internet Explorer, do the following:

1. In Internet Explorer, click Tools, then Internet Options.
2. Click the Connections tab, then click LAN Settings.
3. Click to add a checkmark to the Use automatic configuration script checkbox, and enter http://serveripaddress/wpad.dat, where serveripaddress is the internal IP address (e.g. http://192.168.1.1/wpad.dat).
4. Click OK, then OK again to save your settings.

To configure the automatic proxy configuration URL in Mozilla Firefox, do the following:

1. In Mozilla Firefox, click Tools, then Options.
2. Click the General option button, then click Connection Settings.
3. Click to enable the Automatic proxy configuration URL radio button, and enter http://serveripaddress/wpad.dat, where serveripaddress is the internal IP address (e.g. http://192.168.1.1/wpad.dat).
4. Click the Reload button to load the new configuration.
5. Click OK, then OK again to save your settings.