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Hardware Manual for the Model CG814WG Wireless Cable Modem Gateway
Stateful Packet Inspection
Unlike simple Internet sharing routers, a firewall uses a process called stateful packet inspection to ensure secure firewall filtering to protect your network from attacks and intrusions. Since
Ethernet Cabling
Although Ethernet networks originally used thick or thin coaxial cable, most installations currently use unshielded twisted pair (UTP) cabling. The UTP cable contains eight conductors, arranged in four twisted pairs, and terminated with an RJ45 type connector. A normal
Table | UTP Ethernet cable wiring, | |||
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Pin | Wire color | Signal |
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1 | Orange/White | Transmit (Tx) + |
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2 | Orange |
| Transmit (Tx) - |
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3 | Green/White | Receive (Rx) + |
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4 | Blue |
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5 | Blue/White |
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6 | Green |
| Receive (Rx) - |
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7 | Brown/White |
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8 | Brown |
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Uplink Switches and Crossover Cables
In the wiring table, the concept of transmit and receive are from the perspective of the PC. For example, the PC transmits on pins 1 and 2. At the hub, the perspective is reversed, and the hub receives on pins 1 and 2. When connecting a PC to a PC, or a hub port to another hub port, the
Networks, Routing, and Firewall Basics |