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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.