HP-UX SNAplus2 R7 Administration Guide

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Conﬁguring Passthrough Services

Conﬁguring TN Server

TN3270 clients can use the TN server only when the node, port, and link station are active.

To conﬁgure a TN server access record, use one of the following methods:

Motif administration program

Select

TN server

from the

Services menu on the Node window, and

TN server

from the submenu. On the

resulting window, select the TN Server Client Access Permissions pane and choose

New.

Command-line administration program

Issue the following command:

define_tn3270_access

TN Server Access Record Conﬁguration Parameters

The following parameters are required for TN server access record conﬁguration:

TN3270 client address

The address that identiﬁes the TN3270 client to which the access record applies:

Default record

Permit access by any TN3270 client.

TCP/IP name or alias

Permit access by a named TN3270 client. If you know the TCP/IP name of the client, select this option

and enter the name. On many computers, you can ﬁnd out the computer’s TCP/IP name using the

hostname command.

TCP/IP address

Permit access from a speciﬁc TCP/IP address. If you know the TCP/IP address of the TN3270 client,

select this option and enter the address in the standard TCP/IP dotted decimal address format.

Support TN3270E

The level of TN3270 support provided by the node:

TN3270

Support only the TN3270 protocol. Selecting this option disables server support for TN3270E protocols,

even if they are supported on the client.

TN3270E

Support both TN3270 and TN3270E protocols (the default).

TN3270 and TN3287 protocols are always supported, regardless of which option you choose.

For an AS/400 TN3270 client, this option must be set to TN3270E.

TCP/IP port number

The TCP/IP port number (on the TN server) for the port to which the TN3270 client connects.

Note

TCP/IP ports are completely unrelated to SNA ports.

The well-known port number for the TN3270 service is 23, but use of this port number is likely to clash with

the HP-UX system TELNET service. SNAplus2 includes a utility to enable this port to be shared between the

telnet and TN3270 daemons; that utility must be installed for both to work. For details about this utility,

refer to the information for the define_tn3270_access command in HP-UX SNAplus2 Administration

Command Reference.

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