ZyXEL Communications Prestige100 5 Menu 21.1.1 - Generic Filter Rule, Filter Configuration

Models: Prestige100

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Figure 8-5 Menu 21.1.1 - Generic Filter Rule

Figure 8-5 Menu 21.1.1 - Generic Filter Rule

1.Offset - Offset refers to the value of the byte that you want to use as your starting offset. That is, in the data packet, at what point do you want to begin the comparison. The range for this field is from 0 to 255. Default = 0

2.Length - This field refers to the length (in bytes) of the data in the packet that the Prestige should use for comparison and masking. The starting point of this data is determined by Offset. The range for this field is 0 to 8. Default = 0

3.Mask - In this field, specify (in Hexadecimal) the value that the Prestige should logically qualify [and] the data in the packet. Since Length is given in bytes, you need to enter in twice the length hexadecimal numbers for this field. For example, if Length were ‘4’, then a valid Mask must have 8 hexadecimal numbers, like ‘1155ABF8’.

4.Value - In this field, specify (in Hexadecimal) the value that the Prestige should use to compare with the masked packet. The value should align with Offset. Since Length is given in bytes, you need to enter in twice the length hexadecimal numbers for this field. For example, if Length were ‘4’, then a valid Value must have 8 hexadecimal numbers, like

86 Filter Configuration

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ZyXEL Communications Prestige100 user manual 5 Menu 21.1.1 - Generic Filter Rule, Filter Configuration