Dell PowerConnect J-EX4200-24T Software Manual page 2819

Figure 77: Evaluation of Terms Within a Firewall Filter
If a term does not contain a
action in the
If a term does not contain a
the then
term, the packet is accepted.
Every firewall filter contains an implicit
equivalent to the following explicit filter term:
term implicit-rule {
then discard;
}
Consequently, if a packet passes through all the terms in a filter without matching any
conditions, the packet is discarded. If you configure a firewall filter that has no terms, all
packets that pass through the filter are discarded.
Related Firewall Filters for J-EX Series Switches Overview on page 2721
Documentation
Understanding Firewall Filter Match Conditions on page 2748
Understanding the Use of Policers in Firewall Filters on page 2752
Example: Configuring Firewall Filters for Port, VLAN, and Router Traffic on J-EX Series
Switches on page 2755
from statement, the packet is considered to match and the
then statement of the term is taken.
statement, or if an action has not been configured in
then
statement, and the packet matches the conditions in the
NOTE: Firewall filtering is supported on packets that are at least 48 bytes
long.
Chapter 100: Firewall Filters—Overview
deny statement at the end of the filter, which is
from statement of the
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