AirLive WT-2000ARM - Manual (Page 63)

AirLive WT-2000ARM User’s Manual
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MAC Address
MAC stands for Media Access Control. A MAC address is the hardware address of a device
connected to a network. The MAC address is a unique identifier for a device with an Ethernet interface.
It is comprised of two parts: 3 bytes of data that corresponds to the Manufacturer ID (unique for each
manufacturer), plus 3 bytes that are often used as the product’s serial number.
MTU
Maximum Transmission Unit
NAT
Network Address Translator is defined by RFC 1631. Enable a LAN network to use one set of IP
address for internal traffic. A NAT box located where the LAN meets the Internet provides the
necessary IP address translation. This helps provide a sort of firewall and allow for a wider address
range to be used internally without danger of conflict. Using the router’s NAT capability, you can
access the Internet from any computer on your home network without having to purchase more IP
addresses from your ISP.
Port
Network Clients (LAN PC) uses port numbers to distinguish one network application/protocol over
another. Below is a list of common applications and protocol/port numbers:
Application Protocol Port Number
Telnet TCP 23
FTP TCP 21
SMTP TCP 25
POP3 TCP 110
H.323 TCP 1720
SNMP UCP 161
SNMP Trap UDP 162
HTTP TCP 80
PPTP TCP 1723
PC Anywhere TCP 5631
PC Anywhere UDP 5632
PPP
PPP is the Point-to-Point-Protocol. The successor to SLIP, PPP provides router-to-router and host-to-
network connections over both synchronous and asynchronous circuits.