Lantronix XPort User Manual download pdf (Page 27)

4: Using Setup Mode for Configuration

XPort™ User Guide 27

Flow

Flow control sets the local handshaking method for stopping serial input/output. Use

the following table to select flow control options:

Table 4-5. Flow Control Options

Flow Control Option Hex

No flow control 00

XON/XOFF flow control 01

Hardware handshake with RTS/CTS lines 02

XON/XOFF pass characters to host 05

Port Number

The setting represents the source port number in TCP connections. It is the number

that identifies the channel for remote initiating connections. The default setting for

Port 1 is 10001. The range is 1-65535, except for the following reserved port

numbers:

Table 4-6. Reserved Port Numbers

Port Numbers Reserved for

1 – 1024 Reserved (well known ports)

9999 Telnet setup

14000-14009 Reserved for Redirector

30704 Reserved (77F0h)

30718 Reserved (77FEh)

Warning: We recommend that you not use the reserved port numbers

for this setting as incorrect operation may result.

The port number functions as the TCP/UDP source port number for outgoing

packets. Packets sent to the unit with this port number are received to this channel.

The port number selected is the Incoming TCP/UDP port and Outgoing TCP/UDP

source port. Use Port 0 when you want the outgoing source port to change with each

connection.

If the port number is 0, a random value of at least 50000 is used to actively establish

a connection. Each subsequent connection increments the number by 1. When the

port number reaches 59999, it wraps around to 50000.

Only use the automatic port increment feature to initiate a connection using TCP. Set

the port to a non-zero value when the unit is in a passive mode or when you are

using UDP instead of TCP.

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Lantronix XPort User Manual Page 27