Sailor 250 FleetBroadband, Руководство пользователя, Страница: 199 / 288

Chapter 4: Using the web interface
Administration 183
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The evaluation precedence index defines the order in which the traffic flow
filters are applied to packets. 0 is first, then 1, 2 etc.
4. Select the Profile from the drop-down list.
The available profiles are the profiles listed under ADMINISTRATION >
Profiles.
5. Fill in one or more of the following fields to define the filter.
The allowed ranges appear in hover text when you pass the mouse over
the fields.
• Source address + Subnet mask .
This is an IPv4 IP address and subnet mask.
• Protocol number .
This number is uniquely assigned for the protocol being used. TCP
is set to 6, and UDP is set to 17. The protocol number determines
which protocol is used by the traffic flow filter.
• Destination port range (From and To).
• Source port range (From and To). Note that you must fill in both From
and To, even if there is only one port.
• Type of Service + Type of Service mask .
Set this value to a number between 0 and 255.
Type of Service (TOS) is an 8-bit field in a packet header, with
associated mask, that is used to define Quality of Service.
For further information on the principles and parameters of the traffic flow
filters, refer to the 3GPP standards TS27.007 V4.2.0 and TS 23.060 V4.7.0.
6. Click Apply at the bottom of the page.
Note
This field is mandatory. Each filter must have a different
Evaluation Precedence Index.