ZyXEL Communications USG40 User Manual page 335

Figure 222 Configuration > Security Policy > Session Control
The following table describes the labels in this screen.
Table 137 Configuration > Security Policy > Session Control
LABEL DESCRIPTION
General Settings
UDP Session Set how many seconds (from 1 to 300) the ZyWALL/USG will allow a UDP session to
Time Out remain idle (without UDP traffic) before closing it.
Session Limit
Settings
Enable Session Select this check box to control the number of concurrent sessions hosts can have.
limit
IPv4 / IPv6 Rule This table lists the rules for limiting the number of concurrent sessions hosts can have.
Summary
Default This field is configurable only when you enable session limit.
Session per
Host
Use this field to set a common limit to the number of concurrent NAT/Security Policy
sessions each client computer can have.
If only a few clients use peer to peer applications, you can raise this number to improve
their performance. With heavy peer to peer application use, lower this number to ensure
no single client uses too many of the available NAT sessions.
Create rules below to apply other limits for specific users or addresses.
Add Click this to create a new entry. Select an entry and click Add to create a new entry after
the selected entry.
Chapter 18 Security Policy
ZyWALL/USG Series User's Guide
335