Expand Configuration and Management Manual (G06.24+)

Configuring Expand-Over-IP Lines
Expand Configuration and Management Manual—523347-008
8-16
Creating an Ethernet Subnet
2. Identify all TCP6SAM processes that are listed in the LNP field of the SUBNET
display and make a note of these process names.
3. Issue the SCF LISTDEV TCPIP command.
4. Use your list of TCP6SAM names to eliminate the LNP-assigned TCP6SAM
processes. The remaining TCP6SAM process(es) is associated with the default
LNP. This process has access only to the SUBNETs in the default partition.
For example, we know from the LISTDEV command shown in Example 8-5 that
$ZSAM1 is the only TCP6SAM process associated with an LNP so $ZSAM2, shown in
Example 8-6, is the TCP6SAM for the default partition.
Creating an Ethernet Subnet
If an Ethernet SUBNET does not already exist, you can create one using the SCF ADD
SUBNET command. The SCF ADD SUBNET command shown in the following
example defines an Ethernet SUBNET named SN1 for NonStop TCP/IPv6 in IPv4
mode or the TCP/IP/PL environment. The DEVICENAME modifier specifies the name
of the logical interface (LIF) that is used to communicate with the physical interface
(PIF) on an E4SA connected to the system.
-> ADD SUBNET $ZZTCP.*.SN1, TYPE ETHERNET, &
DEVICENAME $ZZLAN.LAN02, IPADDRESS 123.45.67.89,&
SUBNETMASK %HFFFFFF00
After the SUBNET is defined, it must be started using the SCF START SUBNET
command. The SCF START SUBNET command shown in the following example starts
the SUBNET named SN1:
-> START SUBNET $ZZTCP.*.SN1
For more information about creating SUBNETs in the NonStop TCP/IPv6 environment,
refer to the TCP/IPv6 Configuration and Management Manual.
Step 2 (A): Identify an Available UDP Port
Number
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 should identify an available UDP
port number for the IP address you selected in Step 1 (A): Select a Process and
SUBNET for NonStop TCP/IP Use.
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 IP address must be specified when
the local Expand-over-IP line-handler process is defined.