Novell Documentation: Novell Internet Access Server 4.1 - Network Interface Configuration Parameters

Network Interface Configuration Parameters

This section summarizes the fields on the NIASCFG X.25 Network Interface menu.

To display the X.25 Network Interface menu, from the Novell Internet Access Server Configuration menu, select Network Interface.

The NIASCFG X.25 Network Interface menu appears.

The parameters enable you to configure NetWare Link/X.25 for the selected interface. Table 13 describes the X.25 Network Interface parameters.

Table 13. X.25 Network Interface Parameters

Parameter	Description	Default Value
Interface Name	Specifies the name of the interface assigned to the currently selected port. This field is read-only.	No default
Interface Group	Allows protocols such as the IP or Internet Packet Exchange^TM (IPX^TM) protocol to request an X.25 virtual circuit be made either through a specific interface or by way of one interface from within a group of interfaces. Specifying a group name here includes this interface in a group. Press F3 or Enter to display a list of currently defined groups and to define a new group.	No default
Interface Status	Specifies the load status of the current board. You can configure the current board to load each time the server or router PC is initialized. The value can be Enabled or Disabled.	Enabled
Profile	Press Enter to display a menu that lists Novell-standard profiles for major public data networks (PDNs). Then select the standard profile for your X.25 service provider. Press Enter or Insert to view or modify the X.25 profile parameters. Refer to Viewing and Configuring Profile Parameters for more information. All standard profiles are read-only. However, you can make a copy of one of the standard profiles by pressing F2, then you can make changes to the copy.	No default
Local DTE Address	Specifies the X.121 DTE address (up to 15 digits) assigned to the local DTE. This should match the address assigned by your attached network. This address is included in the Calling Address field of outbound Call Request packets.	No default
Statistics Period	Specifies the rate, in 1-second increments, at which the board is polled by the driver to acquire port statistics. Range: 20 to 1024	60
User Data Size	Specifies the maximum size, in bytes, of the user data you expect to transmit and receive on this interface. Range: 500 to 4096 bytes.	1500 bytes
Interface Queue Limit	Specifies the maximum number of data packets that can be queued to each port on the board. Range: 0 to 1024 (0 = unlimited packets)	100 packets
Physical Type	Specifies the port's electrical interface standard (for example, RS-232 or V.35). Press Enter to display a list of the available interface types. This parameter must equal the actual port type installed (for example, if the board type is RS-232, setting this parameter to V.35 is invalid). The value can be RS-232, RS-422, RS-423, V.35, or X.21.	RS-232
Port Connection	Specifies the physical connection between the local DTE and the remote end. The value can be DTR Dialed, Hard-wired, or Pseudo-Switched.	Hard-wired
Interface Speed	Specifies the line speed, in bits per second, of the port. The internal board rates vary, depending on the driver. The possible values are 1200, 2400, 4800, 7200, 9600, 12000, 14400, 16000, 19200, 38400, 48000, 56000, 64000, and External.	External
Authentication Options	Presents a menu that covers the definition of the incoming call verification parameters. X.25 can be configured to accept incoming calls from a list of predefined partners, which are identified by their X.25 DTE addresses. Authentication Options Parameters explains the parameters that can be configured for NetWare Link/X.25 inbound authentication for this interface.	No default

Viewing and Configuring Profile Parameters

When you press Insert when the cursor is on the Profile parameter on the X.25 Network Interface menu, a list of profiles is displayed. The list includes the names and Novell-standard profiles of major PDNs. All the standard profiles are read-only.

If you select a profile and press Insert or F3, the X.25 Profile Configuration window appears. This window allows you to change the profile parameters and save the changed profile under a new name.

The X.25 Profile Configuration window displays the following fields.

Profile

Specifies the name of the currently selected profile. This parameter is read-only.

Profile Type

This parameter is purely informational and has no effect on NetWare Link/X.25 operation.

Options: Enterprise, Local

Default: Local

Frame Level Parameters

Pressing Enter when the cursor is in the Frame Level Parameters field displays the X.25 Frame Level Parameters window. This window is used to define the working characteristics of the link (LAPB) between the remote access software and the DCE (typically the X.25 network).

Changing the parameters from the defaults is optional. The default configuration should be adequate for most configurations.

Table 14 describes the Frame Level parameters.

Table 14. Frame Level Parameters

Parameter	Explanation	Default
Profile	Specifies the name of the currently selected profile. This field is read-only.	No default
Frame Node Type	Specifies which address, A or B, you allocate to the local DTE, depending on your communications configuration. Do not use this option with the Connection Mode parameter set to Passive. The possible options are DCE (LAPB DCE address used); DCE-A (automatically determines which LAPB address to use, beginning with DCE); DTE (LAPB DTE address used); and DTE-A (automatically determines which LAPB address to use, beginning with DTE).	DTE-A
Connection Mode	Specifies whether NetWare Link/X.25 waits for the calling partner to set up the actual link. Active mode continually attempts to set up the link. Passive mode waits for a partner to set up the link. Generally, Passive mode is not used unless you are communicating with an X.25 implementation that does not tolerate partner setup.	Active
Frame Sequencing Modulo	Specifies the Link layer sequence numbering that is used. The possible values are 8 (Modulo 8) and 128 (Modulo 128). All networks support Modulo 8 for normal sequence numbering, whereas some networks also support Modulo 128 for extended sequence numbering. This allows users to select a larger window size. For most networks, select Modulo 8. The Frame Window Size parameter is dependent on which Modulo method you select.	8
Frame Window Size (K)	Specifies the maximum number of information frames that can be received or sent before the server or router PC sends (or waits for) an acknowledgment. Range: 1 to 7 (Modulo 8); 1 to 127 (Modulo 128)	7
Maximum Frame Size (N1)	Specifies the maximum frame size, in octets, that can be received on the link. Frames received on the link in excess of this number cause the link to be reset by sending a Frame Rejected (FRMR) frame. Unnecessarily specifying a large number reduces the amount of memory available for normal data operations. N1 should be greater than the specified packet size (both default and maximum). Range: 160 to 4103 (for 1980 X.25 version); 261 to 4103 (for 1984 or 1988 X.25 version)	261
Retry Count (N2)	Specifies the maximum number of times a frame is retransmitted after the Retry Timer (T1) expires. A large value for this parameter increases the probability of a correct transfer between the DTE and DCE. A smaller value permits faster detection of a permanent error condition. Range: 1 to 255	10
Retry Timeout (T1)	Specifies the time, in seconds, to wait for an acknowledgment of the oldest transmitted frame. If an acknowledgment is not received within this set time, an attempt is made to determine the status of the remote device. Set this parameter to a value slightly greater than twice the transmission time of the longest frame, including the anticipated delay time to the peer node. Range: 1 to 3200	2
Disconnect Timeout (T3)	Specifies the value, in seconds, of the T3 timer. When the T3 timer value expires, the Data-Link layer passes an indication of an observed, excessively long idle channel state condition to the Packet layer. The T3 timer value must be greater than T1 to ensure that the data-link channel is in a nonactive, nonoperational state, and that the data-link channel needs data-link setup, before a normal data-link operation can resume. Range: 0 to 3200 (0 = disabled)	20
Idle Timeout (T4)	Specifies the amount of time, in seconds, the local DTE waits when a link becomes idle before attempting to poll the partner node for status. If the partner node does not respond to the polls, the link is reset and all current virtual calls are cleared or reset. Range: 0 to 180 (0 = disabled)	10

Packet Level Parameters

Selecting Packet Level Parameters from the X.25 Profile Configuration window displays a submenu that accesses all the Packet Level parameters for the interface. Table 15 describes the Packet Level parameters.

Table 15. Packet Level Parameters

Parameter	Description	Default
Profile	Specifies the name of the currently selected profile. This field is read-only.	No default
X.25 Version	Specifies the specific conformance year for the X.25 specification you are using for this port. The value can be 1980, 1980-Min, 1984, or 1988.	1984
Packet Layer Role	Specifies whether DTE or DCE procedures are used for Packet layer operation. When establishing a connection to an X.25 network, you must set this parameter to DTE (the default value) to avoid call collisions. The value can be DTE or DCE.	DTE
Default Inbound Packet Size	Specifies the default packet size that is used for a call. Unless another packet size is specified when the call is made, the default value is used. Set this value to correspond to your network subscription. The value can be 16, 32, 64, 128, 256, 512, 1024, 2048, or 4096.	128
Default Outbound Packet Size	Specifies the maximum outgoing data packet size used when a call is established without the Flow Control Negotiation parameter. The Default Outbound Packet Size parameter should be a value that is agreed upon by the PDN and the remote DTE. The value can be 16, 32, 64, 128, 256, 512, 1024, 2048, or 4096.	128
Packet Sequencing Modulo	Specifies the control over the numbering of sequential data packets allowed in a window. For most networks, Modulo 8 should be used. For special high-propagation delay situations (for example, a satellite), you can use Modulo 128, if allowed by your network, to permit larger window sizes. The Default Window Size parameter is dependent on the Modulo method you select. Options: 8 or 128	8
Default Inbound Window Size	Specifies the default number of sequential incoming data packets that can be received before an acknowledgment is required. The Packet Sequencing Modulo and Window Size parameters are independent of the Frame Sequencing Modulo and Window Size parameters. Range: 1 to 7 (Modulo 8); 1 to 127 (Modulo 128)	2
Default Outbound Window Size	Specifies the default value of the maximum number of sequentially numbered data packets that the local DTE might not acknowledge at any given time. When a virtual circuit is established without flow control negotiation, this value is used as an outbound window size. You should set this parameter to the value that is agreed upon with the PDN. Range: 1 to 7 (Modulo 8); 1 to 127 (Modulo 128)	2
Default Inbound Throughput Class	Specifies the default setting, in bits per second, for the incoming throughput of each virtual circuit. Set this value to correspond to your network subscription. Options: 75, 150, 300, 600, 1200, 2400, 4800, 9600, 19200, 48000, 64000	1200
Default Outbound Throughput Class	Specifies the default outbound throughput class that is used when a call is established without throughput class negotiation. Options: 75, 150, 300, 600, 1200, 2400, 4800, 9600, 19200, 48000, 64000	1200
Restart Response Timer (T20)	Specifies the amount of time, in seconds, that the local DTE waits when it issues a Restart Request packet to receive a restart confirmation. When the time limit expires, the Restart Request packet is retransmitted. Range: 1 to 3200	180
Call Response Timer (T21)	Specifies the amount of time, in seconds, that the DTE waits for a response to an outbound Call Request packet. Range: 0 to 3200 (0 = disabled)	200
Reset Response Timer (T22)	Specifies the amount of time, in seconds, that the DTE waits for a response to a Reset Request packet. Range: 1 to 3200	180
Clear Response Timer (T23)	Specifies the amount of time, in seconds, that the DTE waits for a response to a Clear Request packet. Range: 1 to 3200	180
Ack-Send Timer (T24)	Specifies the amount of time, in seconds, that a DTE waits when a packet carrying a valid acknowledgment is sent. This timer is used to ensure that any acknowledgments are not lost. If the timer expires, an RR (Receiver Ready) packet is sent. Range: 0 to 3200	0 (timer not active)
Data Retransmission Timer (T25)	Specifies the amount of time, in seconds, that the DTE waits for the appropriate acknowledgment after transmitting a data packet. If the T25 timer expires, the Packet layer resets the virtual circuit. Range: 0 to 3200	30 (timer not active)
Interrupt Response Timer (T26)	Specifies the amount of time, in seconds, that the DTE waits for an interrupt confirmation when an Interrupt Request packet is sent. If the timer expires, the Packet layer resets the virtual circuit. Range: 0 to 3200	0 (timer not active)
Restart Retransmission Count (R20)	Specifies the maximum number of times the local DTE retransmits when the T20 timer expires before notifying the user that the associated link is inoperative. Range: 0 to 50	5
Reset Retransmission Count (R22)	Specifies the maximum number of times the local DTE retransmits a Reset Request packet after the T22 timer expires before initiating a clear procedure for an SVC or a restart procedure for a PVC. Range: from 0 to 50	5
Clear Retransmission Count (R23)	Specifies the maximum number of times the local DTE retransmits a Clear Request packet after the T23 timer expires before initiating a Restart procedure on the associated link. Range: 0 to 50	5

Virtual Circuit Setup

When you select Virtual Circuit Setup from the X.25 Profile Configuration window, the X.25 Virtual Circuit window appears. The Virtual Circuit Setup parameters allow you to configure PVC and SVC Logical Channel Numbers (LCNs). Table 16 describes the available parameters.

Table 16. Virtual Circuit Setup Parameters

Parameter	Description	Default
Profile	Specifies the name of the currently selected profile. This field is read-only.	No default
Lowest PVC LCN	Specifies the lowest LCN that can be used for a PVC. Range: 0 to 255 (0 is for Transpac only)	1
Number of PVC LCNs	Specifies the number of logical channels supporting PVCs. This number must agree with your network subscription. Range: 0 to 256	0
Expert PVC Configuration	Press Enter to display a list of the PVCs that have been defined and can be configured for the associated interface. Select a PVC and press Enter again. Use the resulting window to configure a single PVC. Refer to Expert PVC Configuration Parameters for information on the Expert PVC Configuration parameters.	No default
Lowest Inbound-Only SVC LCN	Specifies the lowest LCN that can be used for one-way incoming logical channels for SVCs. This value must be greater than or equal to the Lowest PVC LCN parameter value. Range: 1 to 4095	1
Number of Inbound-Only LCNs	Specifies the number of incoming channels assigned for inbound-only SVCs. This number must agree with your network subscription. Range: 0 to 255	0
Lowest Two-Way SVC LCN	Specifies the lowest number of two-way channels assigned for SVCs that can be used for both inbound and outbound calls. Range: 1 to 4095	1
Number of Two-Way SVC LCNs	Specifies the lowest LCN that can be used for two-way SVCs. This number must agree with your network subscription. Range: 0 to 255	8
Lowest Outbound-Only SVC LCN	Specifies the lowest LCN that can be used for outgoing SVC logical channels. The value must be greater than or equal to the Lowest Two-Way SVC LCN parameter value plus the Number of Two-Way LCNs parameter value. Range: 1 to 4095	9
Number of Outbound-Only SVC LCNs	Specifies the number of logical channels reserved for outbound-only SVCs. This number must agree with your network subscription. Range: 0 to 255	0

User Facility Setup

When you select User Facility Setup from the X.25 Profile Configuration window, the X.25 User Facility Setup window appears. This window allows you to specify user facility setup parameters. You can change or specify flow control and throughput negotiation settings, maximum inbound and outbound packet and window sizes, use of CUGs, fast select, and reverse charging.

Table 17 describes the User Facility Setup parameters.

Table 17. User Facility Setup Parameters

Parameter	Description	Default
Profile	Specifies the name of the currently selected profile. This field is read-only.
Allow Flow Control Negotiation	Specifies whether to allow negotiation, per call, of the data throughput that can be transferred on a virtual circuit. If set to Yes, allows incoming calls and outgoing calls containing either the Window Size facility or the Packet Size facility to be passed to the destination application for disposition. Flow Control Negotiation is also allowed when the parameter is set to Yes. If the destination application accepts the call, NetWare Link/X.25 either accepts the Window Size or Packet Size facilities as requested, or adjusts them to the highest value allowed (less than or equal to the maximum values specified in the User Facility Setup menu). If set to No, an incoming call or outgoing call is cleared if the specified window size or packet size is greater than the specified maximum window size or maximum packet size, respectively. Options: Yes, No	No
Maximum Inbound Packet Size	Specifies the largest incoming packet size that can be negotiated on a per-virtual circuit basis. Options: 16, 32, 64, 128, 256, 512, 1024, 2048, 4096	128
Maximum Outbound Packet Size	Specifies the largest outgoing packet size that can be negotiated on a per-virtual circuit basis. Options: 16, 32, 64, 128, 256, 512, 1024, 2048, 4096	128
Maximum Inbound Window Size	Specifies the largest value, per virtual circuit, that can be negotiated for the inbound window size. The maximum value for this parameter depends on the Packet Sequencing Modulo method you selected. Refer to Packet Level Parameters for more information. Range: 1 to 7 (Modulo 8); 1 to 127 (Modulo 128)	2
Maximum Outbound Window Size	Specifies the largest value, per virtual circuit, that can be negotiated for the outbound window size. The maximum value for this parameter depends on the Packet Sequencing Modulo method you selected. Refer to Packet Level Parameters for more information. Range: 1 to 7 (Modulo 8); 1 to 127 (Modulo 128)	2
Allow Throughput Negotiation	Specifies whether to allow negotiation, per call, of the data throughput that can be transferred on a virtual circuit. If set to Yes, incoming calls containing the Throughput facility are passed to the destination application. If the destination application accepts the call, the Throughput Class Negotiation value is set to the highest value (less than or equal to) or the maximum specified in the Packet Layer Parameters window. If set to No, an incoming call containing a Throughput Class Negotiation value that does not match the default is cleared. Options: Yes, No	No
Maximum Inbound Throughput Class	Specifies the maximum Throughput Class Negotiation value, in bits per second, that can be negotiated per virtual circuit. Options: 75, 150, 300, 600, 1200, 2400, 4800, 9600, 19200, 48000, 64000	9600
Maximum Outbound Throughput Class	Specifies the maximum Throughput Class Negotiation value, in bits per second, that can be negotiated per virtual circuit. Options: 75, 150, 300, 600, 1200, 2400, 4800, 9600, 19200, 48000, 64000	9600
Allow Incoming Reverse Charge Calls	Specifies whether incoming calls containing the Reverse Charging facility are passed to the destination application. If set to Yes, the call is passed to the destination application for disposition. If set to No, the call is cleared. Options: Yes, No	Yes
Allow Closed User Group	Specifies whether CUGs are allowed for the DTE and, if so, what kind of access the CUGs will have. CUGs allow the DTEs to belong to a group so they can communicate with each other. However, CUGs preclude communication with all other DTEs. If a DTE belongs to more than one CUG, you must specify a preferential CUG. Options: Yes, No	No
Allow Bilateral CUG	Specifies whether to allow pairs of DTEs to form bilateral communication. This allows access between the bilateral DTEs and excludes access to (or from) other DTEs. Options: Yes, No	No
D-Bit Procedure Authorized	Specifies whether Delivery Confirmation (D-bit) procedures are allowed for any virtual call through this port. If set to Yes, incoming calls specifying D-bit procedures are allowed. If set to No, these calls are cleared. Options: Yes, No	No
Fast Select	Specifies whether Fast Select can be used for any call on this port. If set to Yes, Fast Select calls can be used. If set to No, incoming calls containing the Fast Select facility are cleared. Options: Yes, No	Yes

Conformance Options

Pressing Enter from the X.25 Profile Configuration window displays the X.25 Conformance Options window. This window allows you to customize NetWare Link/X.25 for use on PDN implementations.

IMPORTANT: The Novell-provided profiles for the various PDNs have these options set for proper operation on your network. Consult your network representative or technical support before you modify these parameters.

Table 18 describes the Conformance Options parameters.

Table 18. Conformance Options Parameters

Parameter	Description	Default
Profile	Specifies the name of the currently selected profile. This field is read-only.	No default
Unknown Frame Option	Specifies whether to acknowledge an unknown frame. If set to Yes, command frames with the Poll/Final (p/f) bit set to Off are ignored. If set to No, unknown frames are not acknowledged. Options: Yes, No	No
Disconnect Answer Option	Specifies the response to Disconnect (DISC) frames in either link setup states or link disconnect states. If set to Yes, an Unsequenced Acknowledgment (UA) response is sent. If set to No, a Disconnect Mode (DM) response is sent. Options: Yes, No	No
Disconnect Action Option	Specifies the action when a Disconnect (DISC) frame is received in an SABM Sent or OFF state. If set to Yes, the SABM is sent immediately. If set to No, the link is disconnected. Options: Yes, No	No
Force FRMR Option	Specifies that any received frame is answered with an FRMR frame while in FRMR Sent state or when the link is reset. Options: Yes, No	No
Force FRMR on RR Option	Specifies an FRMR response to RR frames if in FRMR Sent state. If set to Yes, an FRMR response is sent. If set to No, it is ignored. Options: Yes, No	No
T1 Action Option	Specifies the point at which the retransmission counter is reinitialized when in T1 Sent state. If set to Yes, it reinitializes when any information frame (I frame) is acknowledged. If set to No, it is ignored. Options: Yes, No	No
Call Accept Data	Specifies the use of Call User Data in a positive response to an incoming call. If set to Yes, the user data accepted allows various byte lengths of data (up to 128 bytes of user data) to be sent in the Call Request packet, depending on the protocol involved and whether Fast Select is selected in the Call Request packet. Options: Yes, No	No
D-Bit on Call Confirm	Specifies whether the D-bit in a Call Confirm packet is set. Options: Yes, No	No
General Diagnostic Code	Determines whether the original diagnostic code is retransmitted when the T20 timer expires (Yes), or whether the T20 timer expired diagnostic code is included in the Restart packet (No). Options: Yes, No	No
Clear Unassigned LCN	Specifies that incoming packets appearing with an unassigned LCN will generate a Clear response. Setting this option to Yes is not recommended unless your attached network requires it. This option generates a Clear response for incoming calls containing unconfigured LCNs. If set to No, such incoming calls are ignored. Options: Yes, No	No
Short Call Confirm	Specifies whether a 3-byte Call Accept packet (Yes) or 5-byte Call Accept packet (No) is transmitted when a facility is not included in the Call Accept packet. Options: Yes, No	No
Facility Field	Specifies whether Clear packets and Call Accept packets with full facility and user data fields are allowed. Options: Yes, No	No
Clear Long Call	Specifies whether user data is cleared for the pre-1984 version of X.25. If set to Yes, enables the Clear User Data field option in the Clear Request packet for the pre-1984 version of X.25. Options: Yes, No	No
Force Defaults on Negotiation	Specifies whether the port defaults always are selected as a negotiation response for an incoming call. Usually, this option is not set unless required by your attached network. If set to Yes, any negotiable facility value contained in an accepted incoming call is forced to the port's default values (rather than using the maximum, or less than or equal to port maximum). Options: Yes, No	No

Frame Node Type

Displays the link type you use. This parameter is read-only.

Packet Size (In/Out)

Displays the current default packet sizes. The In packet size corresponds to the packets transmitted to a network. The Out packet size corresponds to the packets received from this network. This field is read-only.

Frame Window Size

Displays the current settings for the Frame level window. Defines the number of information frames (I frames) that are transmitted or received before an acknowledgment is required. This field is read-only.

Packet Window Size (In/Out)

Displays the current settings of the Packet level window size. The window size specifies how many data packets are transmitted or received before an acknowledgment is required. This field is read-only.

Number of VCs (PVC/In/Two-Way/Out)

Displays the number of PVCs and SVCs currently configured. The SVCs are further divided into outgoing, two-way, and incoming (the network can allocate to the incoming call only). This field is read-only.

Expert PVC Configuration Parameters

When you select Expert PVC Configuration from the X.25 Virtual Circuit Setup window, a window appears that allows you to configure Expert PVC parameters.

Table 19 describes the Expert PVC Configuration parameters.

Table 19. Expert PVC Configuration Parameters

Parameter	Description	Default
Profile	Specifies the name of the currently selected profile. This field is read-only.	No default
Logical Channel Number	Displays the LCN assigned to the associated PVC. Each PVC is assigned an LCN, starting from the lowest user-configured PVC LCN. This field is read-only.	No default
Inbound Packet Size	Specifies the inbound packet size that is used for the specified PVC. This value must be agreed upon by the PDN at network subscription time. Options: 16, 32, 64, 128, 256, 512, 1024, 2048, 4096	128
Outbound Packet Size	Specifies the outbound packet size that is used by the associated PVC. This value must be agreed upon by the PDN at network subscription time. Options: 16, 32, 64, 128, 256, 512, 1024, 2048, 4096	128
Inbound Window Size	Specifies the inbound window size that is used by the associated PVC. This value must be agreed upon by the PDN at network subscription time. Range: 1 to 7 (Modulo 8); 1 to 127 (Modulo 128)	2
Outbound Window Size	Specifies the outbound window size that is used by the associated PVC. This value must be agreed upon by the PDN at network subscription time. The window size must be less than the Packet Sequencing Modulo. Range: 1 to 7 (Modulo 8); 1 to 127 (Modulo 128)	2
D-Bit Procedures Authorized	Specifies whether Delivery Confirmation (D-bit) procedure is allowed for this virtual circuit. If set to Yes, incoming calls specifying D-bit procedures are allowed. If set to No, such calls are cleared. Options: Yes, No	No

Authentication Options Parameters

When you select this option on the Network Interface Configuration menu and press Insert or Enter, a menu of inbound authentication parameters is displayed. This section describes the parameters that you can configure for X.25 inbound authentication for this interface.

Interface Name

Specifies the name of the interface assigned to the currently selected port. This field is read-only.

Inbound Authentication

Specifies whether incoming calls are subject to authentication based on specific DTE addresses in the authentication database.

If authentication is enabled, only incoming calls with a DTE address specified in the authentication database are accepted.

Options: Enabled, Disabled

Default: Disabled

Authentication Database Name

Allows you to enter the name of an authentication database. You can enter the name of an existing or a new database. You can add a new partner DTE address. For existing databases, the submenu displays a list of currently defined valid partner DTE addresses.

Authentication Database

Press Enter to view or edit the list of valid remote system IDs and associated DTE addresses. Each entry represents a valid partner that can communicate with this interface.

You can press Enter to edit an authentication entry or press Insert to add a new one. The X.25 Inbound Authentication Database window appears, from which you can associate a remote system ID with the DTE address from an incoming call. You can configure the following authentication entry parameters:

Interface Name

Specifies the name of the interface you assigned to the currently selected port. This field is read-only.

Database Name
Displays the name of the authentication database.

Remote System ID
Specifies the local handle for a partner system. It is not verified or exchanged with the remote system. The remote system ID is used by protocols such as IP and IPX to identify a connection to a partner system.

Press Enter to list all remote system IDs.

Default: Blank

Remote DTE Address
Specifies the 15-digit X.121 DTE address assigned to the remote system. This address must correspond exactly to the calling DTE address, included in the Incoming Call packet received by the remote system. Otherwise, authentication fails and the incoming call is rejected.

Default: Blank