 |
» |
|
|
|
The X.25 Configuration screen (#48) in Figure 8-2 “NS Configuration Screen” is
displayed when you press the [Config Network] key at the Network Transport Configuration screen (#42)
with an NI type of 3 (X.25). Refer to Chapter 5 “Introductory Screens” for
information on the Network Transport Configuration screen. In the IP address field, enter the internet protocol (IP) address
for the node being configured. An example of an address is: C 192.191.191 009. The IP subnet mask is optional. If entering one, tab
to the IP subnet mask field and enter the number in the same format
as an IP address. Move to the first Link name field. Enter a link name to represent the DTC/X.25
Network Access card for which you are configuring a link. This name
must be unique to both the node and the DTC. It must also be the
same as the link name configured for this card when the Datacommunications
and Terminal Subsystem (DTS) was configured. Enter the node name of the DTC that houses the DTC/X.25
Access card in the first DTC Node Name field then enter the slot number of the card in
the Card Number field. Enter a link name, DTC node name, and card number
for each link you are configuring. When you are done adding links, press the [Save Data] key. If the network that this node is on contains ANY internetwork
gateway (either full or half) press the [Neighbor Gateways] key and proceed to the section in this chapter called "To
Configure Neighbor Gateways." If the network that this node is on contains NO internetwork
gateways or if you have already configured gateways for this system,
press the [Config Directry] key and proceed to the section in this chapter titled "To Configure
X.25 Virtual Circuits."
- Optional Keys
Press the [List NIs] key to list the names and types of already configured
network interfaces. Press the [Delete NI] key to remove a configured network interface from the
configuration file. Press the [Read Other NI] key to call up a previously configured Network Interface
name.
Fields- Node Name
Display only. - Network Interface (NI) name
Display only. - IP address
IP address is an address of a node on a network.
An IP address has two parts: a network portion and a node portion.
The network portion must be the same for
all nodes on an X.25 network; the node portion
must be unique for all nodes on an X.25 network. 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: 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: | 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. |
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. - Link Name
The link name identifies a specific DTC/X.25 Network
Access card to be used for X.25 system-to-system connections. This
link name must be the same as the link name you entered for this
card when you configured your DTCs. You may configure up to 11 links.
(One link must be used for loopback. Loopback will be automatically
configured during the guided screen configuration.) - DTC Node Name
The DTC node name is the fully qualified nodename (name.domain.organization) of the DTC that contains the DTC/X.25 Network
Access card with the configured link name. - Card Number
The DTC card number is the number of the DTC/X.25
Network Access card in the associated DTC. If the card is contained
in a DTC 48, the DTC card number can be any number from 1 to 5. If
the card is contained in a DTC 16, the card number must be 2.
Configure X.25 Virtual Circuits | |
The X.25 Virtual Circuit Configuration screen (#47) in Figure 8-3 “X.25 Virtual Circuit Configuration
Screen” is displayed if you press the [Config Directry] key from the X.25 Configuration screen (#48) in Figure 8-2 “NS Configuration Screen”. This screen lets you configure the network
directory. In the Remote node name field, type in the nodename of each remote X.25
node on your network in the format nodename.domain.organization. Also, if you need to be able to perform a loopback DSLINE command to the local node, then enter the local node's
name here as well. For each node, type the IP address of the node in the Remote IP address field. To specify that calls can be made to a node, enter its
address key in the Address key field. Enter the node portion
of the remote node's configured nodename. | | | |  | NOTE: An address key called POOL is already preconfigured for you though it doesn't
show up on the screen. POOL allows the node being configured to receive any incoming
calls even if the remote system's address is not configured
on this screen. POOL will also allow you to use NetIPC to programmatically
provide an X.25 address that is not configured on this screen. If
you want to delete the POOL address key, in the last line of the X.25 Virtual
Circuit Configuration screen enter a 3 (for switched VCs) and press the [Go To] key. That brings you to the X.25 SVC Address Key Paths
screen where you can then remove the default name POOL by typing over it with spaces and then saving
the data. | | | | |
If the address type is a switched virtual circuit complete
steps a through c, but if the address type is a permanent virtual
circuit, skip to step 5. In the Remote X.25 address field, enter the X.25 address of the remote host
for X.25 public data networks or private networks. Make sure the name of the facility set you are using
is in the Facility set field. You may either choose the default facility
set (STDSFSET) or enter an alternative. If you are configuring
a new facility set, enter a new name. (To modify facility set parameters, enter
a 5 in the last field on the screen and press the [Go To] key.) In the Security class field, enter the level of logical security you want
to have on this particular entry. The possible values are IN (accept calls from the address), IO (accept calls from and send calls to the address,
default), OU (send calls to the address, incoming calls are
rejected), and LK (block calls to or from the address).
If the address type is a permanent virtual circuit (PVC),
in the Permanent VC number field, enter the PVC number of the PVC on the remote
node. This value cannot be greater than the number of PVCs for which
you are subscribed. It must be within the PVC range you defined during
DTC configuration. After you have finished entering new information for
each remote node, press the [Save Data] key. (Press the key once for each remote node you are
configuring.) If you have completed configuration of X.25, press the [Validate Netxport] key and proceed to Chapter 10 “Validating and Cross-Validating with
SYSGEN” Otherwise,
press the [Prior Screen] key to return to the X.25 Configuration screen. Fields
- Network directory name
The network directory file that will be updated
by the information entered through this screen. - Remote node name
You must enter the remote node name of each X.25 node
into the network directory. Include entries for all remote nodes
and, if you want to be able to perform loopback, the local node
as well. - Remote IP address
Also in the network directory, you must enter the
IP Address of each node whose identity you have entered into the
network directory. For the format of this parameter, see the information
in the "Fields" section under "Configure
X.25 Network." - Address key
The X.25 address key is the name of a remote node
with which your local node will be communicating. Hewlett-Packard
recommends that you make the name be the node portion of the remote
node's name (where its full name is node.domain.organization). You must configure an X.25 address key for each remote node
with which your node will be communicating. You have a combined
maximum of 1024 X.25 address keys in the SVC and PVC path tables.
The X.25 address key name must be eight characters or less and the
first character must be alphabetic. A default address key called POOL allows any system to access the local system even
if the remote system's address is not configured. POOL can also be used when level 3 programmatic access
(NetIPC) provides an X.25 address. - Network Interface (NI) name
Display only. - SVC or PVC Parameters
The parameters for assigning either SVCs or PVCs
are described in the following paragraphs.
For SVCs - Remote
X.25 address
The remote X.25 address is the remote node's
X.25 address. This address is required for SVCs if you have specified
an X.25 address key. This address must be 15 digits or
less. - Facility set
The facility set name is a name for a set of X.25 connection
parameters. The parameters are determined by the type of X.25 network
that you are subscribed to. You can configure options in a facility
set so that specified options are available for every virtual circuit or
negotiated for each virtual circuit on a per-call basis. This facility
set will be used when a connection is made from your node to the
specified remote node or from the specified remote node to your
node. A Facility Set is required for SVCs if you have specified
an X.25 Address Key. The facility set name must be eight characters
or less, and the first character must be alphabetic. You can configure
up to 128 facility sets. To modify facility set parameters, enter a 5 in the field at the bottom of the screen and press
the [Go To] key. This will take you to the X.25 User Facility Sets
screen. From this screen you can create new or modify existing user
facility sets. See the NS 3000/iX Screens Reference
Manual for more information. - Security class
The security class is the level of logical security
you want to have when a connection is made to or from the specified
remote node. A Security level is required for SVCs if you have specified
an X.25 Address Key. The possible values are as follows: IO — Both incoming and outgoing calls are
accepted. This is the default value. IN — Only incoming calls are accepted from
this particular remote address. Outgoing calls will be rejected. OU — Only outgoing calls are accepted to
this particular remote address. Incoming calls will be rejected. LK — Entry is locked. No call is accepted,
either inbound or outbound.
For PVCs - Permanent VC number
The PVC Number identifies a permanent virtual circuit (PVC)
on the remote node. If you have entered a name in the X.25 Address
Key field and are configuring PVCs, then you also have to enter
a value for the PVC Number.
|
Printable version
