Lantronix XPort AR manual Addresses and Port Numbers, Hardware Address, IP Address

2: Description and Specifications

Web Manager: Through a web browser, configure the XPort AR’s settings using the Lantronix Web Manager. (See 4:Configuration Using Web Manager.)

Command Mode: There are two methods to accessing Command Mode: making a Telnet connection or connecting a terminal (or a PC running a terminal emulation program) to the unit’s serial port. (See 5:Configuration Using Telnet or Serial Port.)

Addresses and Port Numbers

Hardware Address

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

Figure 2-1. Sample Hardware Address

00-20-4A-14-01-18 or 00:20:4A:14:01:18

IP Address

Every device connected to an IP network must have a unique IP address. This address references the specific unit.

Port Numbers

Every TCP connection and every UDP datagram is defined by a destination and source IP address, and a destination and source port number. For example, a Telnet server commonly uses port number 23.

The following is a list of the default server port numbers running on the XPort AR:

‹TCP Port 22: SSH Server (Command Mode configuration)

‹TCP Port 23: Telnet Server (Command Mode configuration)

‹TCP Port 80: HTTP (Web Manager configuration)

‹TCP Port 443: HTTPS (Web Manager configuration)

‹UDP Port 161: SNMP

‹TCP Port 21: FTP

‹UDP Port 69: TFTP

‹UDP Port 30718: 0x77FE Query port

‹TCP/UDP Port 1001: Tunnel 1

‹TCP/UDP Port 1002: Tunnel 2

XPort AR User Guide 13