The screens discussed in the following pages allow you to configure shared dial
or direct connect and dial node mapping. These screens allow you to specify
routes to target (destination) nodes and to indicate the priority of each route.
The number of mappings you enter depends on how many links are on the node you
are configuring.
Nodes Having Single Links
If you are configuring a node (call it Node A) that has only one Point-to-Point
link to a second node (call it Node B), you enter one route name as the mapping
to the adjacent node (Node B).
If there are additional nodes attainable beyond Node B, you would only have to
enter one more mapping: make up a route name, and then you can indicate the
additional (non-adjacent) nodes by specifying a "wildcard" (@) in the
destination IP address field of either the Dialed or Non-dialed Node Mapping
Configuration screens.
Nodes Having Multiple Links
If you are configuring a node that has more than one Point-to-Point link, you
could ultimately have several paths to a non-adjacent destination node.
Hence, if this node has more than one Point-to-Point link, enter a symbolic
route name for every other destination node on the network.
The route name is only used during configuration of this node, and you do not
have to repeat it when you configure other nodes.
Select a Node Mapping Screen
To begin configuring node mapping, you should be at the Point-to-Point Link
Configuration screen (#44) in Figure 7-2
"Point-to-Point Link Configuration Screen". You will configure node mapping
for each link you are configuring.
Enter the name of a configured link in the field at the bottom of
the screen next to the words To configure router mapping enter
Link Name.
Press the [Link Routing] key.
If the Type specified for the selected link is SD,
proceed to the section in this chapter titled "To Configure Shared
Dial Node Mapping."
If the Type specified for the selected link is DD or
DC, proceed to the section in this section titled "To
Configure Direct Connect/Dial Node Mapping."
Configure Shared Dial Node Mapping
The Shared Dial Node Mapping Configuration screen (#46) in
Figure 7-5 "Shared Dial Node Mapping
Configuration Screen"is displayed if you press the [Link Routing]
key at the Point-to-Point Link Configuration screen (#44) for a link of type
SD.
Figure 7-5 Shared Dial Node Mapping Configuration Screen
Each router NI can have up to 1024 mappings. However, 4096 is the absolute
maximum number of unique phone numbers supported per NMCONFIG File.
In the Route Name field, enter a symbolic name that
represents a route between the node you are configuring and
destination node
In the Destination IP Address field, enter the IP address
of the destination node for which a route is being specified.
In the Priority field, enter a number from 1 to
99 to indicate the priority of this route if there are
multiple routes to a destination.
In the Phone Number field, enter the telephone number of
the destination node. (Leave this field blank if the target node is
non-adjacent.)
The Security String field is optional. You may enter a
string that remote nodes must use to gain dial link access to the
node you are configuring.
In the Disable Route field, leave the default alone
unless you want to temporarily disable a configured route.
Press the [Next Link] key to call up another link when you want
to configure information about its adjacent and non-adjacent nodes.
Press the [Config Directry] key to configure the Network Directory
screen.
Fields
Route Name
A symbolic name, up to eight alphanumeric characters, that represents
a route between the node you are configuring and a destination node. The
route name is only used within the NMMGR program. It is most useful when
the node you are configuring has more than one possible way of accessing
a target (destination) node. It identifies different routes to target
nodes and is not the actual target node name. It is used because you may
need a way to identify more than one route to a target node. There should
be at lease one symbolic route name for routes to every other destination
node on the network unless you use the "@" wildcard destination
IP address.
To help keep track of routes, you can use the destination node name as
the route name. If you have more than one route to a given node, you can
name the routes nodename1, nodename2, and so forth.
Destination IP Address
IP address of the target (destination) node for which a route is being
defined.
Priority
Number from 1 to 99 that indicates which route has precedence
(priority) over another when there are multiple routes to a destination.
A route to a destination that has a higher priority will take precedence
over a route with a lower priority. This field is the primary means of
influencing the choice of route.
Phone Number
Required if the link is a dial link. The field must be blank if the
target node is non-adjacent. 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
Three-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.
To disable outbound dialing, enter an exclamation point (!) by
itself in the phone number field.
Each router NI can have up to 1024 mappings. However, 4096 is the
absolute maximum number of unique phone numbers supported per
NMCONFIG File.
Security String
An optional security string that remote nodes must use to gain dial
link access to the node. It can be up to eight alphanumeric characters,
left justified, with no embedded blanks. The first character must be
alphabetic.
Disable Route
Y (yes) or N (no) indicator that allows you to
temporarily disable a configured route. Leave the default (N)
alone if you do not want to disable the route.
Configure Direct Connect/Dial Node Mapping
The Direct Connect/Dial Node Mapping Configuration screen (#45) in
Figure 7-6 "Direct Connect/Dial Node Mapping
Configuration Screen" is displayed if you press the [Link Routing]
key at the Point-to-Point Link Configuration screen (#44) for a link of type
DD or DC.
Figure 7-6 Direct Connect/Dial Node Mapping Configuration Screen
Each router NI can have up to 1024 mappings. However, 4096 is the absolute
maximum number of unique phone numbers supported per NMCONFIG File.
In the Route Name field, enter a symbolic name that
represents a route between the node you are configuring and a
destination node.
In the Destination IP Address field, enter the IP address
of the destination node for which a route is being specified.
In the Priority field, enter a number from 1 to
99 to indicate the priority of this route if there are
multiple routes to a destination.
In the Disable Route field, leave the default alone
unless you want to temporarily disable a configured route.
If this is a dial link, in the Phone Number field, enter
the telephone number of the destination node.
The Security String field is optional. You may enter a
string that remote nodes must use to gain dial link access to the
node you are configuring.
Enter information for non-adjacent (remote) nodes in the same
manner in the fields provided. (You do not configure a phone number
or security string for non-adjacent nodes.)
Figure 7-7 Using an @ for Mapping Non-Adjacent Nodes
Priority
Number from 1 to 99 that indicates which route has precedence
(priority) over another when there are multiple routes to a destination.
A route to a destination that has a higher priority will take precedence
over a route with a lower priority.
Disable Route
Y (yes) or N (no) indicator that allows you to
temporarily disable a configured route. Leave the default (N)
alone if you do not want to disable the route.
Phone Number
Required if the link is a dial link. The field must be blank if the
target node is non-adjacent. 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
Three-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.
To disable outbound dialing, enter an exclamation point (!) by
itself in the phone number field.
Each router NI can have up to 1024 mappings. However, 4096 is the
absolute maximum number of unique phone numbers supported per
NMCONFIG File.
Security String
An optional security string that remote nodes must use to gain dial
link access to the node. It can be up to eight alphanumeric characters,
left justified, with no embedded blanks. The first character must be
alphabetic.