terminal type suffix then the connection will only be eligible to terminal devices
which also have no group name specified.

The terminal group name should be 1-8 alphanumeric characters in length, the first
character being alphabetic and it should not be a hexadecimal number. Upper and
lower case letters in the group name are considered to be equivalent.

*

The asterisk is used to indicate any terminal group name. It may be omitted if there
are no additional arguments following the group name. If an IP address (and op-
tionally mask) is specified and there is no specific group name desired then the
asterisk must be coded to distinguish the terminal group name and the IP address
arguments.

ipaddr [mask]

The optional IP address and subnet masks specify the IP address(es) at which
client(s) are allowed to connect via the device address identified by the device
statement. This provides an additional means of specifying which device(s) a client
tn3270 session may connect to.

If the IP address and mask (default 255.255.255.255 if not specified) of the tn3270
client attempting to connect match the IP address/mask entered on the device
statement, then the client is eligible to connect at this device address. Otherwise
the client is ineligible to connect at this device address and the next available de-
vice, if any, for which the client is eligible to connect, will be attempted.

If no permissible terminal devices remain (terminal devices for which the client is
eligible to connect) or there are no more available terminal devices then the client
connection is rejected.

The optional IP address and subnet mask may be specified in conjunction with the
terminal group argument. In this case the terminal group argument must be speci-
fied ahead of the optional IP address and subnet mask arguments. To specify an IP
address and a subnet mask without also specifying a terminal group use an aste-
risk (“*”) as the group name substitute or placeholder.

If an IP address / mask are not specified then any client tn3270 session is allowed
to connect to the device (provided they are also a member of the specified terminal
group, if any).

The terminal group name must match if specified, regardless of any optional IP
address / mask. To summarize, the device number suffix always takes precedence
over any group name and any group name always takes precedence over any IP
address/mask value.

6.2.4 Examples

Example 1:

Define an integrated 3270 (SYSG) console on device address 0000 (the device address is ignored for
SYSG consoles).

0000 SYSG

Example 2:

Define an integrated 3270 (SYSG) console on device address 0000. Allow only clients with terminal
group name SYSGCONS and from IP address 192.168.0.100 with subnet mask 255.255.255.0 to
connect.

0000 SYSG SYSGCONS 192.168.0.100 255.255.255.0

Example 3:

Define an integrated 3270 (SYSG) console on device address 0000. Allow clients with any terminal
group name but only from IP address 192.168.0.100 to connect.

0000 SYSG * 192.168.0.100

Example 4:

Define an integrated 3270 (SYSG) console on device address 0000. Allow only clients with terminal
group name SYSGCONS and from IP address 192.168.0.100 to connect.

0000 SYSG SYSGCONS 192.168.0.100

Example 5:

Define an integrated 3270 (SYSG) console on device address 0000. Allow only clients with terminal
group name SYSGCONS to connect.

0000 SYSG SYSGCONS

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