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Web Agent Procedure

To create IPX SAP Network filters using the Web Agent:

  1. Select Net Filters from the Routing > IPX > SAP group on the Web Agent window. The IPX SAP Net Filters dialog box opens (Figure 18-4).Only the CREATE button is displayed when no IPX SAP Network Filers are configured.

Figure 18-4. IPX SAP Net Filters Dialog Box

  1. Select CREATE. The Add IPX SAP Net Filter dialog box opens (Figure 18-5).

Figure 18-5. Add IPX SAP Net Filter Dialog Box

  1. See Table 18-3 to configure the Add IPX SAP Net Filters dialog box parameters:
    Table 18-3. Add IPX SAP Network Filter Dialog Box Parameters
    Parameter
    Allows you to...
    Select
    Select the IPX interface.

    NOTE: Note: This field is displayed in the IPX SAP Net Filter dialog box, not in the Add IPX SAP Net Filter dialog box.

    Interface
    Select the interface to which this filter will be applied to SAP packets sent and/or received on the interface.
    Precedence
    Specify the filter precedence (in order of importance) with 0 equal to most important.

    NOTE: Note: All SAP filters on the same interface must be assigned a unique filter precedence.

    Net
    Specify the network on which the server resides. A network number of ffffffff represents all networks.
    Type
    Specify the service type (in hex) that identifies the type of service the server provides. Well-known service types include:
    • Unknown (0)
    • Print Queue (3)
    • File Server (4)
    • Job Server (5)
    • Print Server (7)
    • Archive Server (9)
    • Remote Bridge Server (24)
    • Advertising Print Server (47)
    • NetWare Directory Services (278)
    A value of ffff matches all service type values.
    Direction
    Select the direction of the filter in question. Filter choices include:
    • Inbound - Applies the filter only to SAP packets received on the interface.
    • Outbound - Applies the filter only to SAP packets sent on the interface.
    • Both - Applies the filter to SAP packets both sent and received on the interface

    Default value is outbound.

    Filter/Suppress
    Disable whether the services matching Net and Type are filtered (inbound) or suppressed (outbound).
    • Filtered - Applies the filter only to SAP packets received (inbound direction) on the interface.
    • Suppressed - Applies the filter only to SAP packets sent (outbound direction) on the interface.
    Select Disable to disable the filtering and suppression of traffic. The default is Enable.
    Hops
    Specify the number of routers (hops) that the packet must pass through before reaching the service(s) matched by the filter. This entry is used to override the value in the SAP packet.
    Entering 0 ensures that there is no override in the transmission of data on the network.

  2. Click APPLY to save your changes, or CANCEL to restore previous settings.

Example: Filtering all Services Except Netware Directory Services (NDS)

To configure your switch to filter all services except NDS a specific Interface, you must create two filters. Together, Filter 1 and Filter 2 filter services learned on the indicated interface except for NDS advertisements.

To create these filters using the Web Agent:

Filter 1

This filter ensures that all NDS packets received are not filtered on Interface Remote.

  1. Select Net Filters from the Routing > IPX > SAP group on the Web Agent window. The IPX SAP Net Filters dialog box opens (Figure 18-4).
  2. Select CREATE. The Add IPX SAP Net Filter dialog box opens (Figure 18-5).
  3. Configure the following parameters:
  4. Select an interface name from the Interface pull-down menu.
  5. Enter 0 in the Precedence field.

NOTE: Any filter with a Precedence of 0 will always override a filter with a precedence of 1 or higher.

  1. Enter ffffffff (which represents all networks) in the Net field.
  2. Enter 278 (which represents the type for NDS) in the Type field.
  3. Select Inbound from the Direction pull-down menu.
  4. Select Disable from the Filter/Suppress pull-down menu to ensure that NDS advertisements are not filtered.
  5. Enter 0 in the Hops field to ensure that there is no override in the transmission of data on the network.
  6. Click APPLY to save your changes, or CANCEL to restore previous settings.

Filter 2

Filter 2 ensures that all networks and service types are filtered for the indicated interface.

  1. Select Net Filters from the Routing > IPX > SAP group on the Web Agent window. The IPX SAP Net Filters dialog box opens (Figure 18-4).
  2. Click CREATE to create a new filter. The Add IPX SAP Net Filter dialog box opens (Figure 18-5).
  3. Configure the following parameters:
  4. Select an interface name from the Interface pull-down menu.
  5. Enter 1 in the Precedence field.
  6. Enter ffffffff (which represents all networks) in the Net field.
  7. Enter ffff (which represents all services/types) in the Type field.
  8. Select Inbound from the Direction pull-down menu.
  9. Select Enable from the Filter/Suppress pull-down menu.
  10. Enter 0 in the Hops field. Entering 0 ensures that there is no override in the transmission of data on the network.
  11. Click APPLY to save your changes, or CANCEL to restore previous settings.

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