Configuring discovery preferences for Level-2 managed systems

The Level 2: IBM Director Agents page allows you to customize the discovery parameters for Level-2 managed systems.

Complete the following steps to configure discovery preferences for Level 2: IBM Director Agents:
  1. In IBM Director Console, click Options > Discovery Preferences.
  2. In the Discovery Preferences window on the Level 2: IBM Director Agents page, configure the general discovery preferences for managed systems:
    1. In the Auto-discover period (hours) field, select how often IBM Director Server attempts to discover systems automatically. The possible range is one to 168 hours (seven days). By default, autodiscovery is disabled.
    2. In the Presence Check period (minutes) field, select how often IBM Director Server checks the status of each managed system. A presence check detects whether a managed system is online or offline. The possible range is one to 240 minutes (four hours); this feature also can be disabled. By default, a presence check is set to occur every 15 minutes.
    3. Select the Automatically secure unsecured systems check box to ensure that IBM Director Server automatically secures any unsecured managed systems that it discovers. When this feature is enabled, IBM Director Server prevents future management servers from managing the managed systems without first requesting access.
    4. Select the Auto-add unknown agents which contact server check box to ensure that IBM Director Server adds objects for newly-discovered managed systems to the Group Contents pane. This option might be useful if you are reinstalling IBM Director Server in an existing IBM Director environment, or if you have configured instances of IBM Director Agent to contact IBM Director Server directly.
  3. At the top of the page, click System Discovery (IP).
    Note: These discovery preferences are for Level-2 managed systems only.
  4. To specify that IBM Director Server issues an IP broadcast to discover managed systems on the local subnet, on the System Discovery (IP) page, select the Use TCP/IP general broadcasts check box. By default, this feature is enabled.
  5. To specify that IBM Director Server issues an IP broadcast to discover managed systems on a remote subnet, complete the following steps:
    1. Click Add.
    2. In the Add window, click Broadcast.
    3. Click Next.
    4. In the Add Broadcast Address window, in the IP Address and Subnet Mask fields, type the IP address and subnet mask.
    5. Click OK. The information about the broadcast operation is displayed in the Address Entries field.
  6. To specify that IBM Director Server issues an IP multicast, complete the following steps:
    1. Select the Use TCP/IP multicasts check box.
    2. In the Multicast Group field, type the address of the multicast group address. By default, the multicast group address is set to 224.0.1.118.
    3. In the Multicast TTL fields, select the time to live for the multicast discovery packet. The time to live is the number of times that a packet is forwarded between subnets. By default, this is set to 32.
    Note: If you modify the multicast group address, you also must modify the multicast group address on each managed system.
  7. To specify that IBM Director Server issues a broadcast relay request from a Level-2 managed system, complete the following steps:
    1. Click Add. The Add window opens.
    2. Click Relay.
    3. Click Next.
    4. In the Add Relay Address window, in the IP Address and Subnet Mask fields, type the IP address and subnet mask of an existing Level-2 managed system.
    5. Click OK. The information about the broadcast relay operation is displayed in the Address Entries field.
  8. To specify that IBM Director Server issues a unicast, complete the following steps:
    1. Click Add.
    2. In the Add window, click Unicast Address.
    3. Click Next.
    4. In the Unicast Address window, in the IP Address field, type the IP address to which the packet is sent.
    5. Click OK. The information about the unicast operation is displayed in the Address Entries field.
  9. To specify that IBM Director Server issues a unicast to a range of IP address, complete the following steps:
    1. Click Add.
    2. In the Add window, click Unicast Range.
    3. Click Next.
    4. In the Add Unicast Address Range window, in the Start Address and End Address fields, type the starting and ending IP addresses.
    5. Click OK. The information about the unicast range operation is displayed in the Address Entries field.
  10. If you have IPX installed on the management server, at the top of the page, click System Discovery (IPX).
  11. To specify that IBM Director Server issues an IPX broadcast to discover managed systems on the local subnet, on the System Discovery (IPX) page, select the Use IPX general broadcasts check box. By default, this feature is enabled.
  12. To specify that IBM Director Server issues an IPX broadcast to discover managed systems using a specific IPX address, complete the following steps:
    1. Click Add.
    2. In the Add IPX address entry window, type the IPX address.
    3. If you want to enable a broadcast relay, select the Enable broadcast relay check box.
    4. Click OK. The information about the broadcast operation is displayed in the Address Entries field.

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