Netgear FVS318G FVS318G User Manual - Page 71

ProSafe Gigabit 8 Port VPN Firewall FVS318G Reference Manual The QoS priority definition for a service determines the queue that is used for the traffic passing through the VPN firewall. A priority is assigned to IP packets using this service. Priorities are defined by the "Type of Service (ToS) in the Internet Protocol Suite" standards, RFC 1349. 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 the data must be transferred over a link that has a low transmission cost. The IP packets for this service priority are marked with a ToS value of 1. • Maximize-Reliability. Used when data needs to travel to the destination over a reliable link with little or no retransmission. The IP packets for this service 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 for the packet to reach the destination must be short (low link latency). The IP packets for this service priority are marked with a TOS value of 8. Attack Checks The Attack Checks menu allows you to specify whether or not the VPN firewall should be protected against common attacks in the LAN and WAN networks. To enable the appropriate Attack Checks for your environment: 1. Select Security > Firewall from the main menu and click Attack Checks to display the Attack Checks tab page. Figure 4-9 Firewall Protection and Content Filtering 1.1 November, 2009 4-19