ZyXEL Communications Prestige 623 series User Manual page 132

Prestige 623 Series Dual-link ADSL Router
FIELD
ICMP Type Specifies whether the value in the type field in ICMP packet headers will be used as a
criteria. The code value can be any decimal value from 0-255. You can specify that
the value must equal (eq) or not equal (neq) to the specified value, or you can select
any to enable the rule to be invoked regardless of the ICMP type field.
This field is only available if you specified that the protocol must equal ICMP in the
Protocol field.
IP Frag. Pkt Specify how the rule should apply to IP packets that contain fragments. Select from
the following options:
Yes: The rule will be applied only to packets that contain fragments.
No: The rule will be applied only to packets that do not contain fragments.
Ignore: (Default) The rule will be applied to packets whether or not they contain
fragments, assuming that they match the other criteria.
IP Option Pkt Specify whether the rule should apply to IP packets that have options specified in their
packet headers.
Yes: The rule will be applied only to packets that contain header options.
No: The rule will be applied only to packets that do not contain header options.
Ignore: (Default) The rule will be applied to packets whether or not they contain
header options, assuming that they match the other criteria.
Packet Size Specify that the IP filter rule will take affect only on packets whose size in bytes
matches this criteria. (lt = less than, gt = greater than, lteq = less than or equal to,
etc.)
TOD Rule The TOD (Time Of Day) Rule Status determines how the Start Time and End Time
Status settings are used.
Enable: (Default) The rule is in effect for the specified time period.
Disable: The rule is not in effect for the specified time period, but is effective at all
other times.
Click Submit to confirm your changes. Refer to the section on Committing Your Changes and
Rebooting the Prestige to save your changes to permanent memory and make your changes take effect.
15-8
Table 15-1 IP Filter Rule: Add
DESCRIPTION
Configuring IP Filters