FireBrick 105 Manuals Home |
LAN | Local Area Network. This is a group of devices connected together, normally using ethernet, which can communicate directly with each other. It can include cables, hubs, switches, and even wireless access points. |
LAN, WAN, DMZ |
LAN, WAN (Wide Area Network) and DMZ (DeMiliterized Zone) are used to describe the sides of a firewall. They are all LANs but the WAN is used to describe the outside (connected to the rest of the world), The LAN is the inside connected to your network, and any DMZs are used for servers which are typically protected from the WAN but from which your LAN is protected in case such machines are compromised. Normally the single port on the left is the WAN and the 4 ports on the right are the LAN. |
IP | Internet Protocol. An IP address is four parts with dots, e.g. 192.168.0.1. The FireBrick supports only conventional IP (version 4). |
Mask | (Netmask, Subnet mask) is used to define the size of a local area network. Usually shown in the same format as an IP address, e.g. 255.255.255.192, but also shown as a bit count on the end of an IP address, e.g. 192.168.0.1/24. See Networks for more details. |
Port | End point identity used by TCP and UDP protocols, a number 1 to 65535 |
TCP | Transport Control Protocol - used for most session based communications such as web pages, email, etc. |
UDP | User Datagram Protocol - used for realtime and transaction based communications such as DNS and voice over IP. |
DNS | Domain Name Service - the way in which machine names are converted to IP addresses, and various related functions. |
There are 5 ethernet ports on the front of the FireBrick. The one of the left is normally the WAN side, and the 4 on the right are normally a high speed network switch connected to the LAN side. All ports support 10base-T and 100base-T as well as Full and half Duplex automatically and also have auto crossover to avoid any confusion with straight or crossover cables. The power connector is at the rear and should be used with the supplied power supply or equivalent.
To factory reset:-