The UMS downloads the desired firmware using the URLs it received from the download server. The UMS uses port 80 for fwu.igel.com (from UMS 6.03.130 onwards: port 443 at fwus.igel.com).

Direct Connection

The following figure illustrates the communication between the UMS Server and the IGEL download servers:

Via Proxy Server

When a proxy server is placed between the UMS Server and the IGEL download server, the port for the proxy server must be specified under UMS Administration > Global Configuration > Proxy Server.