Defining Filters

The filter definition contains local and remote information and a service and is used to determine the class of a packet. It can also contain URL information and a Type of Service value.

Figure 5-5 Filters Window

The Filter List in the left hand column displays all the currently configured Filters. The configurable parameters are:

• Filter Name

  New filters are created with the temporary name new. To change this name, type a new name in the Filter Name field and click Apply.

• TOS

  In the TOS field, type the Type of Service value. This must be a value between 0 and 255.

• Matching mask

  This value specifies which bits will match the Type of Service value in the IP header with the Type of Service value. This must be specified as a bitmask.

• Remote and local network entity types.

  Specify the remote and local network entity types. For each type, a different name field is displayed:

  Host	Complete the Host Name field. This value can be expressed as a domain name or IP address.
  Host Group	Complete the Host Group Name field with a Host Group name defined in the Host and Subnet Groups window. To define a new Host Group, click Create. This starts the Host and Subnet Groups window.
  Subnet	Complete the Subnet Name field with a Host name or IP address. Complete the Subnet Mask field with a subnet mask.
  Subnet Group	Complete the Subnet Group Name field with a Subnet Group name defined in the Host and Subnet Groups window. To define a new Subnet Group, click Create. This starts the Host and Subnet Groups window.

• Service

  The available services are displayed in the drop-down menu. To define a new service in the Services window, click Create.

• URL

  From the local panel, select Single URL or URL Group. A different name field is displayed for each selection:

  Single URL	Complete the Single URL field. Specify the URL in the format protocol://username:password@host:port/path.
  URL Group	Complete the Group Name field with a URL group name defined in the URL Group window.   To define a new URL Group, click Create. This starts the URL Group window.