The IP Protocol Configuration screen (#156) in Figure 11-5 “IP Protocol Configuration Screen” is displayed when you
press the [Go To IP] function key at the Protocol
Configuration screen (Figure 11-4 “Protocol Configuration Screen”).
It is also displayed when you type the path name:
@NETXPORT.NI.NIname.PROTOCOL.IP
in the command window of any screen and press the [Enter]
key, where NIname is a configured BT100 NI.
Figure 11-5 IP Protocol Configuration Screen
![[IP Protocol Configuration Screen]](img/gfx93.gif)
This screen is used to supply IP protocol information for
the network being configured. Each NI has an IP address. The IP
address field is a key element in IP routing and datagram delivery
algorithms. The IP subnet mask field allows you to identify an IP
subnet mask for the NI named in the path. The store and forward
buffers field is useful for internal resource allocation and performance
tuning.
Press the [Save Data] function key to transfer
the data displayed on the screen to the configuration file you are
creating or modifying. Verify that the data record has been created
by checking that the Data flag is set to Y.
Fields
- Store & forward buffers
This field allocates buffers to support store-and-forward
over the network interface being configured. You must allocate store
and forward buffers if you are configuring an internet gateway and
packets from another network will be forwarded over this network
interface. You can modify the number of store-and-forward buffers
to allow performance tuning for different network types. HP recommends
that you use 20 as the store-and-forward buffers. Consult your HP
representative before modifying this value.
You do not need to allocate store-and-forward buffers if you
are configuring a non-gateway node on this network. Leave the default
(0) in this field to indicate that this is a non-gateway node.
Default value: 0
Range: 0-50
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 | NOTE: If this node is a gateway node, HP recommends that you
use 20 as the store-and-forward buffers. |
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- IP internet address
Enter the internet protocol (IP) address for the
network interface being configured.
There are two methods of entering an internet protocol (IP)
address within NMMGR:
Enter the fully qualified IP address
(for example, Class C, C 192.191.191 009)
OR
Enter only the network (nnn)
and node (xxx) portions of the IP address as
four positive integers between 0 and 255 separated by periods or
blanks (for example, 15.123.44.98).
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.
Addresses are made up of a network
portion and a node portion. The supported
classes of network addresses have the following forms:
- Class C:
C nnn.nnn.nnn xxx
- Class B:
B nnn.nnn xxx.xxx
- Class A:
A nnn xxx.xxx.xxx
where nnn is a value ranging from 000
to 255, representing eight bits of the network portion of an address
and where xxx is a value ranging
from 000 to 255, representing the node portion of the address. The
leftmost group of nnn has the following ranges
for each address class:
- Class C:
192-223
- Class B:
128-191
- Class A:
001-126
Network and node values of all zeroes or all ones are not
allowed. These are special values.
Default value: No default, but a value must
be supplied.
- IP subnet mask (optional)
An IP subnet mask is used when configuring subnetworks.
The mask identifies which bits of an IP address will be used to
define a subnetwork. 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.
For example, a mask for a Class A network with the subnet field
being the first eight bits of the node part would be expressed as
255 255.000.000. The default is no IP subnet mask.
Refer to the HP 3000/iX Network Planning and Configuration
Guide for more details on subnets.
