ZyXEL Communications ZyWall USG20-VPN, Руководство пользователя

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Chapter 20 Security Policy
USG20(W)-VPN Series User’s Guide
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Figure 217
Configuration > Security Policy > Session Control
The following table describes the labels in this screen.
Table 128
Configuration > Security Policy > Session Control
LABEL DESCRIPTION
General Settings
UDP Session
Time Out Set how many seconds the USG will allow a UDP session to remain idle (without UDP
traffic) before closing it.
Session Limit
Settings
Enable Session
limit Select this check box to control the number of concurrent sessions hosts can have.
IPv4 / IPv6 Rule
Summary This table lists the rules for limiting the number of concurrent sessions hosts can have.
Default
Session per
Host
This field is configurable only when you enable session limit.
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.
Edit Double-click an entry or select it and click Edit to open a screen where you can modify the
entry’s settings.