HP 3000 Manuals HP 3000 Manuals
To Configure an X.25 Network Interface The X.25 Configuration screen(#48) in figure 8-2 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 page 5-9 for information on the Network Transport Configuration screen.Figure 8-2. NS Configuration Screen Steps 1. 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. 2. 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. 3. Move to the first Link name field. Enter a linkname 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. 4. Enter the node nameof 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. 5. When you are done adding links, press the [Save Data] key. 6. 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." 7. 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) Display only. name IP address The 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: 1. Enter the fully qualified IP address (for example, Class C C 192.191.191 009) OR 2. 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. 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 NS3000/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 NS3000/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. ______________________________________________ NOTE To obtain a class B or C IP address, contact Government Systems, Incorporated (GSI). To obtain an application form, write GSI at the address below. Allow at least eight working days for GSI to process an IP address request. Government Systems, Inc. Attn: Network Information Center 14200 Park Meadow Drive Chantilly, CA 22021 (800) 364-3642 (703) 802-4535 ______________________________________________ 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. For details on deriving an IP subnet mask, see chapter 2. 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. To Configure X.25 Virtual Circuits The X.25 Virtual Circuit Configuration screen (#47) in figure 8-3 is displayed if you press the [Config Directry] key from the X.25 Configuration screen (#48) in figure 8-2. This screen lets you configure the network directory.Figure 8-3. X.25 Virtual Circuit Configuration Screen Steps. 1. 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. 2. For each node, type the IP address of the node in the Remote IP addressfield. 3. To specify that calls can be made to a node, enter its address keyin 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. _________________________________________________________________ 4. If the address type is a switched virtual circuit, complete steps a through c, but if the address type is a permanent virtual circuit(PVC), skip to step 5. a. 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. b. 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.) c. 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). 5. If the address type is a permanent virtual circuit(PVC), in the Permanent VC numberfield, enter the PVC numberof 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. 6. 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.) 7. If you have completed configuration of X.25, press the [Validate Netxport] key and proceed to chapter 10 titled "Validating the Network Transport 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) Display only. name 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 nameis 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 NS3000/XL 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 The PVC Number identifies a permanent virtual number 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.
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