ProSafe Gigabit 8 Port VPN Firewall FVS318G Reference Manual

A ToS priority for traffic passing through the VPN firewall is one of the following:

Normal-Service. No special priority given to the traffic. The IP packets for services with this priority are marked with a ToS value of 0.

Minimize-Cost. Used when data has to be transferred over a link that has a lower “cost”. The IP packets for services with this priority are marked with a ToS value of 1.

Maximize-Reliability. Used when data needs to travel to the destination over a reliable link and with little or no retransmission. The IP packets for services with this priority are marked with a ToS value of 2.

Maximize-Throughput. Used when the volume of data transferred during an interval is important even if the latency over the link is high. The IP packets for services with this priority are marked with a ToS value of 4.

Minimize-Delay. Used when the time required (latency) for the packet to reach the destination must be low. The IP packets for services with this priority are marked with a ToS value of 8.

Creating Bandwidth Profiles

Bandwidth limiting determines the way in which data is communicated with your host. The purpose of bandwidth limiting is to provide a method for limiting traffic, thus preventing LAN users from consuming all the bandwidth on your broadband link. Bandwidth limiting does not apply to the DMZ interface.

For example, when a new connection is established by a device, the device will locate the firewall rule corresponding to the connection.

If the rule has a bandwidth profile specification, then the device will create a bandwidth class in the kernel.

If multiple connections correspond to the same firewall rule, they will share the same class.

An exception occurs for an individual bandwidth profile if the classes are per source IP. The source IP is the IP of the first packet of the connection:

The class is deleted when all the connections using the class expire.

Firewall Protection and Content Filtering

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v1.1, August 2010

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NETGEAR FVS318G manual Creating Bandwidth Profiles