Introduction Network Protocols
1-3
Packing Algorithms
Two selectable packing algorithms define how and when packets are sent to the network.
The standard algorithm is optimized for applications in which the Device Server is used in
a local environment, allowing for small delays for characters while keeping the packet
count low. The alternate packing algorithm optimizes the timing sequence in which a
packet will be transmitted. Adjusting parameters in this mode can economize the network
data stream.
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 (e.g., 00-20-4A), identifying the unit as
a Lantronix product. The fourth, fifth, and sixth bytes are unique numbers assigned to each
Device Server.
Table 1-1: Sample Ethernet Address
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 Device Server. See Appendix E for more information on IP
Addressing.
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 23. A port number
is similar to an extension on a PBX system. See Port Number on page 7-8 for more
information.
Compatibility
Revision 4.2 is the current firmware driving CoBox-Micro, CoBox-Mini, and UDS-10B
products. Revision 4.3 is the current firmware driving the CoBox-Mini100 product.
Note: Do not load firmware that is lower than Rev. 4.3 onto the CoBox-
Mini100. Firmware prior to Rev. 4.3 will render this product
inoperable.
00-20-4A-14-01-18 or 00:20:4A:14:01:18
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