User manual

Network Setup
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If an Ethernet port is experiencing difficulties auto-negotiating with another device,
Ethernet Speed and duplex may be set manually.
On rare occasions it may be necessary to change the Ethernet hardware or MAC
Address of your SG unit. The MAC address is a globally unique address and is specific
to a single SG unit. It is set by the manufacturer and should not normally be changed.
However, you may need to change it if your ISP has configured your ADSL or cable
modem to only communicate with a device with a known MAC address.
Interface aliases
Interface aliases allow the SG unit to respond to multiple IP addresses on a single
network interface. This is useful for when your ISP has assigned you a range of IP
addresses to use with your Internet connection, or when you have more than one subnet
connected to a single network interface.