TCP/IP Configuration and Management Manual
Configuring the NonStop TCP/IP Subsystem
TCP/IP Configuration and Management Manual—427132-004
3-10
Configuration 2: Startup Files for a Host in a Subnet
Addressing Environment
The specifications for Logical Interface objects, which provide an interface between 
TCP/IP and the E4SA adapter, appear in boldface.
This SCFSBNT file differs from that in Example 3-5
. The most obvious change is that 
the IP address in the ADD SUBNET command now matches the configuration in 
Figure 3-2
. Also, two additional ALTER SUBNET commands in this file alter the 
SUBNET mask for each SUBNET added.
The default subnet mask is %HFFFF0000, so you must distinguish the subnet number 
from the host number. Since this sample configuration uses Class B addressing, two 
octets are left over for the host address. On a Class B network, you usually split the 
subnet number from the host number on the third octet boundary. Thus, you have three 
octets for the network address and one octet for the host address.
Example 3-4. Second SCFSBNT File for TCPIPUP2 (Subnetting)
=== SCFSBNT FOR HOST1======== SCFSBNT FOR HOST1======== 
== SCF command file to ADD and START SUBNETs 
== This file is created to support HOST1 (Refer to Example 3-1
)
 ALLOW ALL ERRORS 
 ALLOW ALL WARNINGS 
== 
== ADD AND START SUBNET $ZTC0.#SN0
== 
 ASSUME PROCESS $ZTC0 
== HELP TCPIP ADD SUBNET 
 ADD SUBNET #SN0,TYPE ETHERNET,DEVICENAME LAN01,IPADDRESS 128.30.192.2
== HELP TCPIP ALTER SUBNET  
 ALTER SUBNET #LOOP0, IPADDRESS 127.1 
 ALTER SUBNET #SN0, SUBNETMASK %HFFFFFF00
== HELP TCPIP ADD ROUTE 
== ADD ROUTES 
 ADD ROUTE #ROU0, DESTINATION 128.30.0.0, GATEWAY 128.30.192.1 
== HELP TCPIP START SUBNETS & ROUTES 
 START SUBNET * 
 START ROUTE * 
==
== ADD AND START SUBNET $ZTC1.#SN1
== 
 ASSUME PROCESS $ZTC1 
== HELP TCPIP ADD SUBNET 
 ADD SUBNET #SN1,TYPE ETHERNET,DEVICENAME LAN02,IPADDRESS 128.30.192.3
== HELP TCPIP ALTER SUBNET 
 ALTER SUBNET #LOOP0, IPADDRESS 127.1 
 ALTER SUBNET #SN1, SUBNETMASK %HFFFFFF00
== HELP TCPIP START SUBNET 
 START SUBNET * 
== HELP TCPIP ADD ROUTE 
== ADD ROUTES 
 ADD ROUTE #ROU0, DESTINATION 0.0.0.0, GATEWAY 128.30.192.1 
== HELP TCPIP START ROUTE 
 START ROUTE * 
== 
=========== END OF SCFSBNT ============= END OF SCFSBNT =========== 










