Lantronix XPress-DR-IAP Guide de l'utilisateur télécharger pdf (Page 34)

Getting Started

2.1 Addresses and Port Number

2.1.1 Ethernet (MAC) Address

The Ethernet address is also referred to as the hardware address or the MAC address. The

first three bytes of the Ethernet Address are fixed and read 00-20-4A, identifying the unit as a

Lantronix product. The fourth, fifth, and sixth bytes are unique numbers assigned to each

unit.

00-20-4A-21-18-17 or 00:20:4A:21:18:17

2.1.2 Internet Protocol (IP) Address

Every device connected to an IP network must have a unique IP address. This address is used

to reference the specific unit.

2.1.3 Port Number

Every TCP connection and every UDP datagram is defined by a destination IP address and a

port number. For example, a Telnet application commonly uses port number 23. A port

number is similar to an extension on a PBX system.

The unit 's serial channel (port) can be associated with a specific TCP/UDP port number. Port

number 9999 is reserved for access to the unit's Setup (configuration) Mode window.

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Lantronix XPress-DR-IAP Guide de l'utilisateur Page 34