There is no documentation on the network, which makes troubleshooting and understanding the network very difficult for a new person. The company consists of a single building; divided into two floors, the main section is separated from the other back office by workshop area. This back office is connected to the main office switches with a single shielded cat5e cable, the distance exceeding 100 meters, a 4 port netgear switch served as a bridge between the two sections. The company is located in an area where readily available Internet connection is via an ADSL line with a maximum speed of 3.5 Mbps. Therefore, to get sufficient bandwidth and have backup internet connections, three different Internet Service Providers (ISPs), namely AOL, DSL4U and UK Telecom are contracted to provide internet connection with a total of six ( 6) subscription accounts between the 3 ISPs, subscriptions are used as follows • A connection for VOIP