Secure Computing SnapGear Application Note page 14

Setting up SnapGear for VoIP
Enabling and configuring ToS prioritization
Figure 7: ToS Packet
Priority tab
Figure 8: Service Group
tab
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9 Select a predefined Source Address and Destination Address or click the
New button to define new addresses.
10 Set the Priority to
High
applications should have a ToS Priority of High.
11
Click Finish. You are returned to the ToS Packet Priority tab.
12 Continue to define medium and low priority ToS rules as needed. ToS rules
are not required for QoS, but they can solve problems if your VoIP
application does not respond well to the QoS Autoshaper.
13 Services, sources, destinations, and groups of services, endpoints, or
interfaces can also be defined from the Definitions menu. Once created,
these objects appear in option lists throughout the SnapGear interface.
To create these definitions, from the Firewall menu, select
Note: Objects created with the New button will also be available.
, , or . Only one or two critical
Medium Low
Definitions .
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