3Com WX4400 Reference Manual page 232

232 C 6: C
HAPTER ONFIGURING
WX S P
YSTEM ARAMETERS
3 Click Add Rule. A new ACE (ACL rule) appears above the implicit deny all
rule that is at the end of every ACL.
Each ACL has a rule at the end that denies all source and destination IP
addresses. This rule provides security be ensuring that the only traffic
permitted by an ACL is the traffic you want to permit. This rule is
automatically added to the end of each ACL and cannot be edited or
removed.
After adding an ACE to the table, each subsequent ACE appears above
the implicit deny all ACE at the bottom of the list, but beneath all of the
other configured ACEs.
The switch uses the ACEs in the order they appear in the list, beginning at
the top. Because the action in the first ACE that matches a packet is used,
the order the ACEs appear in is important. (You can reorder them. See
step 13.)
4 Specify the source IP address by clicking in the Source IP column and
editing the value. To match on all source IP addresses, leave the value
0.0.0.0/0.
5 Specify the destination IP address by clicking in the Source IP column and
editing the value. To match on all destination IP addresses, leave the
value 0.0.0.0/0.
6 To specify the protocol:
a Click on the down arrow in the Protocol column.
b Select the well-known name of the protocol from the Protocol Name
drop-down list.
If the name of the protocol is not listed, select Other to activate the
Protocol Number box, then type or select the number.
c Click OK.
d If you selected tcp or udp, go to step 7. Otherwise, go to step 9.
To match on all protocols, leave the value any.