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Chapter 6 93
Configuring a LAN Node
Configure a LAN Network Interface
You need not enter the following items as NMMGR will fill these in:
• Class A, B, C
• Leading zeros for the network and node portion of the IP address.
HP assigns the network portion (initial nine digits) of IP addresses
from ARPA Class C, though your addresses may also be of Classes A
or B. The complete formats are:
For Class C, the node portion of the IP address must be between 001
and 254.
If you are adding your NS 3000/iX node to an existing network, the
network portion of each node’s IP address should be the same. You will
have to find out what this is, and use it in the network portion of the IP
address of your NS 3000/iX node. Also, you will need to know the node
portions of the IP addresses of each of the nodes (usually they will be
numbered sequentially, such as 001, 002, and so on), so that you can
specify a unique node portion for the IP address of your node. If you
have a network map, it should provide a record of such items as the
node name and IP address of each node. If there is no record, and if you
want to find out each node’s IP address, you will have to issue the
following command (NM capability required) on each of the nodes:
NETCONTROL NET=
NIname
;STATUS
One of the lines of output from this command tells you what the
complete IP address is for that node; the last three digits are the unique
node portion of the class C address.
IP subnet mask An IP subnet mask is specified in the
same format as an IP address. The
32-bit mask is grouped in octets
expressed as decimal integers and
delimited by either a period (.) or a
space. An IP mask is used when
configuring subnetworks. The mask
identifies which bits of an IP address
will be used to define a subnetwork. To
determine these bits, you first need to
estimate how many subnetworks and
nodes per subnetwork you need. See
Chapter 2 , “Networking Concepts,” for
details on deriving an IP subnet mask.
Class A nnn xxx.xxx.xxx
B nnn.nnn xxx.xxx
C nnn.nnn.nnn xxx
Where: nnn = the network portion of the IP address and
xxx = the node portion of the IP address.