ZyXEL Communications VSG1432-B101 - V1.10, Руководство пользователя

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Chapter 16 Firewall
VSG1432-B101 Series User’s Guide
223
Select Protocol Select the transport layer protocol that defines your customized port
from the drop-down list box. The specific protocol rule sets you add in
the
Security Settings > Firewall > Protocol > Add screen display
in this list.
If you want to configure a customized protocol, select Specific
Protocol .
Protocol This field is displayed only when you select Specific Protocol in
Select Protocol .
Choose the IP port ( TCP/UDP , TCP , UDP , or ICMP ) that defines your
customized port from the drop-down list box.
Custom Source
Port This field is displayed only when you select Specific Protocol in
Select Protocol .
Enter a single port number or the range of port numbers of the source.
Custom
Destination Port This field is displayed only when you select Specific Protocol in
Select Protocol .
Enter a single port number or the range of port numbers of the
destination.
Policy Use the drop-down list box to select whether to discard ( DROP ), deny
and send an ICMP destination-unreachable message to the sender of
(
REJECT ) or allow the passage of ( ACCEPT ) packets that match this
rule.
Direction Use the drop-down list box to select the direction of traffic to which
this rule applies.
Enable Rate Limit Select this check box to set a limit on the upstream/downstream
transmission rate for the specified protocol.
Specify how many packets per minute or second the transmission rate
is.
Scheduler Rules Select a schedule rule for this ACL rule form the drop-down list box.
You can configure a new schedule rule by click
Add new rule . This
will bring you to the Security Settings > Scheduler Rules screen.
Apply Click Apply to save your changes.
Cancel Click Cancel to exit this screen without saving.
Table 69 Security Settings > Firewall > Access Control > Add/Edit (continued)
LABEL DESCRIPTION