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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
![[Point-to-Point Reachable Nodes Screen]](img/gfx45.gif)
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
![[Using an @ for Mapping Configuration]](img/gfx46.gif)
- 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/ non-adjacent
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. Default value: N Range: Y or N
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