Chapter 41 SSL Inspection
ZyWALL USG Series User’s Guide
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41.3 Exclude List Screen
There may be privacy and legality issues regarding inspecting a user's encrypted session. The legal issues
may vary by locale, so it's important to check with your legal department to make sure that it’s OK to
intercept SSL traffic from your Zyxel Device users.
To ensure individual privacy and meet legal requirements, you can configure an exclusion list to exclude
matching sessions to destination servers. This traffic is not intercepted and is passed through
uninspected.
Click Configuration > UTM Profile > SSL Inspection > Exclude List to display the following screen. Use Add
to put a new item in the list or Edit to change an existing one or Remove to delete an existing entry.
Action To edit what action the Zyxel Device takes when a packet matches a signature, select the
signature and use the Action icon.
none: Select this action on an individual signature or a complete service group to have the
Zyxel Device take no action when a packet matches the signature(s).
drop: Select this action on an individual signature or a complete service group to have the
Zyxel Device silently drop a packet that matches the signature(s). Neither sender nor receiver
are notified.
reject-sender: Select this action on an individual signature or a complete service group to have
the Zyxel Device send a reset to the sender when a packet matches the signature. If it is a TCP
attack packet, the Zyxel Device will send a packet with a ‘RST’ flag. If it is an ICMP or UDP
attack packet, the Zyxel Device will send an ICMP unreachable packet.
reject-receiver: Select this action on an individual signature or a complete service group to
have the Zyxel Device send a reset to the receiver when a packet matches the signature. If it is
a TCP attack packet, the Zyxel Device will send a packet with an a ‘RST’ flag. If it is an ICMP or
UDP attack packet, the Zyxel Device will do nothing.
reject-both: Select this action on an individual signature or a complete service group to have
the Zyxel Device send a reset to both the sender and receiver when a packet matches the
signature. If it is a TCP attack packet, the Zyxel Device will send a packet with a ‘RST’ flag to the
receiver and sender. If it is an ICMP or UDP attack packet, the Zyxel Device will send an ICMP
unreachable packet.
# This is the entry’s index number in the list.
Status The activate (light bulb) icon is lit when the entry is active and dimmed when the entry is
inactive.
SID Type the exact signature ID (identification) number that uniquely identifies a Zyxel Device IDP
signature.
Log These are the log options. To edit this, select an item and use the Log icon.
Action This is the action the Zyxel Device should take when a packet matches a signature here. To edit
this, select an item and use the Action icon.
OK Click OK to save your settings to the Zyxel Device, and return to the profile summary page.
Cancel Click Cancel to return to the profile summary page without saving any changes.
Table 283 Configuration > UTM Profile > SSL Inspection > Profile > Add / Edit (continued)
LABEL DESCRIPTION
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