218 MDS Orbit MCR/ECR Technical Manual MDS 05-6632A01, Rev. F
A packet filter consists of a list of rules. Rules are listed in the order of priority. To change the priority of
rules in the list, click the up or down buttons in the Order column. Rules may be added or deleted.
When creating a new filter, rules must be added. Using the "Add new rule" button, enter each new rule as
required.
Figure 3-126. Editing/creating packet filter rules
The following options are available.
Order – Click the arrows to sort rules in order of priority. Rules with higher priority are applied
before rules with lower priority; rule sets containing more than one rule should be sorted accordingly.
Protocol – All, SCTP, TCP, UDP, ICMP, ESP. Specifies the IP protocol of traffic that the rule should
be applied to.
ICMP - When selected, the rule will only apply to that specific ICMP message only. For ICMP
message type definitions, see RFC792, available from the Internet Engineering Task Force,
http://www.ietf.org
- N/A - the rule will be applied to all ICMP protocol messages.
- Destination Unreachable
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