Netgear UTM25-100NAS ユーザーズマニュアル

5-4

Firewall Protection

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Quality of Service (QoS) priorities. Each service has its own native priority that impacts its 
quality of performance and tolerance for jitter or delays. You can change the QoS priority, 
which changes the traffic mix through the system (see 

).

The UTM allows you to block the use of certain Internet services by PCs on your network. This is 
called service blocking or port filtering. 

 describes the fields that define the rules for outbound traffic and that are 

common to most Outbound Service screens (see 

and 

The steps to configure outbound rules are described in the following sections:

•

•

•

Note: See 

 for yet another way to block 

outbound traffic from selected PCs that would otherwise be allowed by the 
firewall.

Warning: Allowing inbound services opens security holes in your UTM. Only enable 

those ports that are necessary for your network.