Lantronix XPort Direct XPort Direct+ - User Guide - Page 11

Protocol Support, Addresses and Port Numbers, Hardware Address, IP Address, Port Numbers

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2: Introduction Protocol Support The XPort Direct+ device server uses the Internet Protocol (IP) for network communications. It uses the Transmission Control Protocol (TCP) to assure that no data is lost or duplicated, and that everything sent to the connection arrives correctly at the target. Supported protocols include: ‹ ARP, UDP, TCP, ICMP, Telnet, TFTP, AutoIP, DHCP, HTTP, and SNMP for network communications and management. ‹ TCP, UDP, and Telnet for connections to the serial port. ‹ TFTP for firmware and web page updates. ‹ IP for addressing, routing, and data block handling over the network. ‹ User Datagram Protocol (UDP) for typical datagram applications in which devices interact with other devices without maintaining a point-to-point connection. ‹ SMTP for email transmission. Addresses and Port Numbers Hardware Address The hardware address is also referred to as the Ethernet 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. Example: 00-20-4A-14-01-18 Note: Make note of the MAC address. It is needed to locate the XPort Direct+ using DeviceInstaller. IP Address Every device connected to an IP network must have a unique IP address. This address is used to reference the specific unit. The XPort Direct+ is automatically assigned an IP address on DHCP-enabled networks, as it is DHCP-enabled by default. Port Numbers 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 phone 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. Ports 0-1024 are reserved as well. For more information on reserved port numbers, see to Table 7-5. Reserved Port Numbers on page 42. XPort Direct+ User Guide 11

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2: Introduction
XPort Direct+ User Guide
11
Protocol Support
The XPort Direct+ device server uses the Internet Protocol (IP) for network
communications. It uses the Transmission Control Protocol (TCP) to assure that no
data is lost or duplicated, and that everything sent to the connection arrives correctly
at the target.
Supported protocols include:
ARP, UDP, TCP, ICMP, Telnet, TFTP, AutoIP, DHCP, HTTP, and SNMP for
network communications and management.
TCP, UDP, and Telnet for connections to the serial port.
TFTP for firmware and web page updates.
IP for addressing, routing, and data block handling over the network.
User Datagram Protocol (UDP) for typical datagram applications in which
devices interact with other devices without maintaining a point-to-point
connection.
SMTP for email transmission.
Addresses and Port Numbers
Hardware Address
The hardware address is also referred to as the Ethernet 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.
Example:
00-20-4A-14-01-18
Note:
Make note of the MAC address. It is needed to locate the XPort
Direct+ using DeviceInstaller.
IP Address
Every device connected to an IP network must have a unique IP address. This
address is used to reference the specific unit. The XPort Direct+ is automatically
assigned an IP address on DHCP-enabled networks, as it is DHCP-enabled by
default.
Port Numbers
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 phone 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. Ports 0-1024 are reserved as well. For more information on reserved
port numbers, see to
Table 7-5. Reserved Port Numbers
on page 42.