The Point-to-Point Reachable Nodes screen (#99) shown in
Figure 6-15 "Point-to-Point Reachable Nodes
Screen" is used to configure the route characteristics to a destination
node on the point-to-point network. You must configure one mapping (i.e., one
entry in this screen) for each node that you want to reach. The name of the
link connecting this node to the adjacent node is what you enter in the Link
Name field of this screen. Because at least one route should be defined to
every other node on the network, this screen will be completed at least as many
times as there are other nodes in the point-to-point network. There may be
multiple routes to a destination node. If the routes are through different
adjacent nodes, a mapping must be configured for each of them.
The screen shown is displayed when you select a route name at the
Point-to-Point Mapping Configuration screen
(Figure 6-13 "Point-to-Point Mapping
Configuration Screen") and press the [Add] or [Modify]
function key. It is also displayed when you type the path name:
@NETXPORT.NI.NIname.MAPPING.mapentry
in the Command window of any screen and press the [Enter] key, where
NIname is the configured point-to-point NI name, and mapentry is
a configured route name.
Figure 6-15 Point-to-Point Reachable Nodes Screen
Press the [Save Data] function key to transfer the data displayed on the
screen to the configuration file you are creating or updating. Verify that the
data record has been created by checking that the Data flag is set to
Y.
Fields
Destination IP internet address
This is the internet address of the destination node to which a route
is being defined.
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 (note the
spaces must appear where indicated):
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 xxx is a value
ranging from 000 to 255, representing node portion of the address. Note
the network and node values of all zeros are not allowed. These are
special values.
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
If the link specified in the Link Name field is the only link configured
for this network interface and is not a shared dial link, you can enter a
"wildcard" symbol by specifying an "at sign" (@) in place of the IP
address. The @ in this field indicates that multiple non-adjacent
point-to-point nodes on this network can be reached via the link
specified in the link name field. (Non-adjacent links are not allowed to
use a shared dial link.) Using the @ wildcard enables you to configure
this screen only once for all non-adjacent nodes reachable by the
specified link. Use the @ only if the link specified is the only link for
this network interface. The @ must be left-justified in the IP internet
address field. Make sure you separately configure the mapping to the
adjacent node from which the non-adjacent nodes can be reached.
For example, Figure 6-16 "Using an @ for
Mapping Configuration" shows a point-to-point network. From node A,
all other nodes on the network must be reached through node B. During
configuration of node A, the @ could be entered to indicate that all
communication to non-adjacent nodes originating from A must be routed
through node B (over Link 1). In addition to this mapping, one mapping
would have to be configured at node A: the mapping from node A to the
adjacent node B.
Default value: None
Figure 6-16 Using an @ for Mapping Configuration
List name
The name of the link on this node over which packets to the
destination node must be sent. The name of the link is configured
separately (see related screens).
Related screens:
NETXPORT.NI.NIname.LINK
This screen configures the link name.
LINK.linkname
This screen configures link attributes.
Default value: None
Adjacent (0) / Non-adjacent (1)
This field indicates whether the destination is an adjacent node to
the node being configured (0) or if it is non-adjacent, i.e., the
destination must be accessed through intermediate nodes (1).
Default value: None
Range: 0 or 1
Entry priority
This field is useful when alternate routes are configured to a
destination node. It is the primary means of influencing the choice of
route over the point-to-point network. Priority is considered before any
other route characteristic (direct connect link, dial connection, number
of hops, etc.) in choosing a route. Links having higher priority values
are chosen over lower priority links. A default value of 50 allows for
the addition of either lower or higher priority nodes or routes.
Default value: 50
Range: 1-99
Phone number
This is the telephone number of the destination node. It is required
if the destination is local and the link is a dial link. Enter the
telephone number as a combination of decimal numbers (0 through 9),
dashes, and the following special characters:
/
Separator used for automatic call units that have second
dial-tone detect.
E
Optional end-of-number indicator.
D
One second delay (used for European modems and automatic call
units that require built-in delays).
#
Defined by local phone system.
*
Defined by local phone system.
Enter ! to disable outbound dialing. A ! is required if the
destination node is a personal computer.
You can have 4096 unique phone numbers in your NM configuration
file.
Default value: None
Security String
This is the security string of the destination node. It is relevant
only if all of the following are true: the destination is local, the link
is a dial link, DIAL ID protocol is enabled, and security is enabled. It
is ignored when security is not enabled at the local node. The security
string can contain as many as eight alphanumeric characters. It must be
left justified and contain no embedded blanks.
Related screens:
NETXPORT.NI.NIname.LINK.linkname
Dial ID protocol is enabled/disabled on this screen.
NETXPORT.NI.NIname.PROTOCOL.DIAL
Security validation is enabled/disabled on this screen.
Default value: HP
Next hop IP internet address
This parameter specifies the correct path for a message to take when
there is more than a single hop between the sending node and the
destination.
Default value: None
Route disabled (Y/N)
Use this field to disable routing to the remote node. Disabling
routing might be useful if you are testing another link and want to
temporarily disable this one.