Expand Configuration and Management Manual (H06.21+, J06.10+)

Configuring Expand-Over-IP Lines
Expand Configuration and Management Manual — 529522-013
8 - 20
Step 2 (C): Identify an available UDP Port Number
for CIP Use
Step 2 (C): Identify an available UDP Port
Number for CIP Use
A User Datagram Protocol (UDP) port number enables multiple applications to use
the same IP address. An Expand-over-IP line-handler process might share a local IP
address with other applications or with other Expand-over-IP processes. Each must
specify a different port number. To avoid conflict, you must identify an available UDP
port number for the IP address you selected in Step 1 (C): Select a Process and
SUBNET for CIP Use.
You can use the CIP SCF LISTOPENS MON to determine which UDP port numbers
are already in use for a particular IP address.
->LISTOPENS MON $ZZCIP.*
Example 8-9 shows a sample result of the SCF LISTOPENS MON command.
UDP port numbers are identified by UDP in the Proto field. The UDP port numbers
that are in use are displayed in the Lport field. As shown in Example
8-9, the UDP
port number 5010 is in use. Based on the information shown by the LISTOPENS
command, determine an available UDP port number. HP recommends that you do not
use a well-known UDP port number in the range 0 to 1023. You must specify this UDP
port number when you define the Expand-over-IP line-handler process in
Step 4:
Create the Line-Handler Process.
Example 8-9. SCF LISTOPENS MON Command
->LISTOPENS MON $ZZCIP.*
CIP Listopens MON \MYSYS.$ZZCIP.ZCM01
Openers Ppid Bpid Proto Lport Provider CLIM
\MYSYS. $ZTN2 1,23 0,24 TCP telnet TC2 CLIM3
\MYSYS.$RMAIL 1,162 TCP 10293 ZTC2 CLIM3
\MYSYS.$MYWEB 1,333 0,312 TCP http ZTC0 CLIM1
\MYSYS.$MYWEB 1,333 0,312 TCP http ZTC0 CLIM1
CIP Listopens MON \MYSYS.$ZZCIP.ZCM02
Openers Ppid Bpid Proto Lport Provider CLIM
\MYSYS.$ZTN0 2,24 3,24 TCP telnet ZTC0 CLIM1
\MYSYS.$ZTN0 2,24 3,24 TCP telnet ZTC0 CLIM1
\MYSYS.$ZTN1 2,35 3,36 TCP telnet ZTC1 CLIM2
\MYSYS.$TEST6 2,325 TCP 10513 ZTC1 CLIM2
\MYSYS 2,210 UDP 5010 ZTC0 CLIM1
Note. You must also perform this step on the destination system before you can define the
local Expand-over-IP line-handler process. The destination UDP port number must be
specified when the local Expand-over-IP line-handler process is defined.