| IP Address                     | On a TCP/IP network, each device is given   |
|                                | an IP Address to uniquely identify it.      |
|                                |                                             |
| Subnet Mask/Net Mask           | The Subnet Mask/Net Mask is used to         |
|                                | identify which part of an IP Address is the |
|                                | network ID (known as subnet), and which is  |
|                                | the devices address.  One of the most       |
|                                | common Subnet Masks is 255.255.255.0, which |
|                                | indicates that the first three numbers of   |
|                                | the IP Address are the Subnet ID and the    |
|                                | last number is the Host/device ID.          |
|                                |                                             |
| Default Gateway/Router         | When a piece of data needs transmitting to  |
|                                | a different subnet, the data is sent to     |
|                                | this address instead.  At the specified IP  |
|                                | address there should be a Router that has   |
|                                | been set up with rules how to reach the     |
|                                | desired subnet and will route the data for  |
|                                | you.                                        |
|                                |                                             |
| Automatic IP/Dynamic Host      | Many networks operate a DHCP server which   |
| Configuration Protocol (DHCP)  | will automatically handle the IP address,   |
|                                | subnet, gateway, DNS settings for you.  If  |
|                                | the network you wish to connect to supports |
|                                | this service, then you can simply set all   |
|                                | your IP settings to Automatic/DHCP and the  |
|                                | network you are connecting to will handle   |
|                                | the rest.                                   |
|                                |                                             |
| Domain Name Service (DNS)      | DNS servers handle translation of domain    |
|                                | names (i.e. microsoft.com) into their       |
|                                | corresponding IP address.  Without a DNS    |
|                                | server, it is very difficult to find any    |
|                                | website or server.  Usually DNS server      |
|                                | requests are either sent directly to the    |
|                                | internet, or through a gateway that will    |
|                                | query a DNS server for you and return the   |
|                                | result.                                     |
|                                |                                             |
| Media Access Control (MAC)     | The MAC address is the unique ID given to a |
| Address                        | network enabled piece of hardware.  The MAC |
|                                | Address of a PSP can be viewed by selecting |
|                                | Settings, System Settings, System           |
|                                | Information.                                |