User`s guide

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fails and so may be useful in backup scenarios. In addition it will ensure that no data is sent
into a “black hole”. (When this setting is not enabled data that is sent on the inbound TCP
connection before the outbound connection has been successful can be lost.)
RFC 1086 Mode:
RFC 1086 specifies a mode of operation in which the IP socket answers and then with a
simple protocol in the socket identifies the X.25 address and other X.25 call setup
parameters to be used. Then when the X.25 call parameters have been identified the X.25
call is made and if successful then data is then switched between the X.25 call and the IP
socket. The protocol will select whether incoming or outgoing support is required.
IP length header
When IP length header is “On”, the IP length indicator field is inserted at the start of each
packet. When set to “8583 Ascii 4 byte”, the IP length header will conform to the ISO 8583
format.
In the example above, 3 IP sockets will “listen” for an incoming connection on IP Port 2004.
Once connected they will each will make an X.25 Call to “jollyroger”. The unit will recognise
that “jollyroger” is a pre-defined macro (as illustrated below), and will translate it into an
X.25 Call to address 32423 with the string “x25 data” included as data in the call. The
outgoing X.25 call(s) will be made over whichever interface is specified by the Switch from
XOT(TCP) to parameter on the Configuration - Network > Protocol Switch page.
Note:
At the top of the page the total number of sockets available and the number currently free
is shown. Care should be take not to allocate too many of the free sockets unless you are
confident that they are not required for other applications.
Related CLI Commands
Entity
Instance
Parameter
Values
Equivalent Web Parameter
ipx25 n ip_port 0 - 65535 IP Port
ipx25 n nb_listens
0 – software dependant
max
Number of Sockets
ipx25 n x25call
NUA, NUI or X.25
macro name
X25 Call
ipx25 n pid hex numbers PID
ipx25 n cnf_mode 1 = enabled, 0 = disabled Confirm Mode
ipx25 n rfc1086_mode 1 = enabled, 0 = disabled RFC 1086 Mode