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Enable Jumbo Frame support – Enabling this option increases throughput and reduces the number of Ethernet frames to be processed. Throughput increase may not be seen in some cases. However, there will be some improvement in throughput if the packets traversing are really jumbo size.

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Drop IPv6 Routing Header type 0 packets – Select this to prevent a potential DoS attack that exploits IPv6 Routing Header type 0 (RH0) packets. When this setting is enabled, RH0 packets are dropped unless their destination is the Dell SonicWALL security appliance and their Segments Left value is 0. Segments Left specifies the number of route segments remaining before reaching the final destination. Enabled by default. For more information, see http://tools.ietf.org/html/rfc5095.

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Decrement IPv6 hop limit for forwarded traffic – Similar to Ipv4 TTL, when selected, the packet is dropped when the hop limit has been decremented to 0. Disabled by default.

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Drop and log network packets whose source or destination address is reserved by RFC – Select this option to reject and log network packets that have a source or destination address defined as an address reserved for future definition and use as specified in RFC 4921 for IPv6. Disabled by default.

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Never generate IPv6 ICMP Time-Exceeded packets – By default, the SonicWALL appliance generates IPv6 ICMP Time-Exceeded Packets that report when the appliance drops packets due to the hop limit decrementing to 0. Select this option to disable this function; the SonicWALL appliance will not generate these packets.

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Never generate IPv6 ICMP destination unreachable packets – By default, the SonicWALL appliance generates IPv6 ICMP destination unreachable packets. Select this option to disable this function; the SonicWALL appliance will not generate these packets.

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Never generate IPv6 ICMP redirect packets – By default, the SonicWALL appliance generates redirect packets. Select this option to disable this function; the SonicWALL appliance will not generate redirect packets.

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Never generate IPv6 ICMP parameter problem packets – By default, the SonicWALL appliance generates IPv6 ICMP parameter problem packets. Select this option to disable this function; the SonicWALL appliance will not generate these packets.

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Enable IPv6 Extension Header Validation – Select this option if you want the SonicWALL appliance to check the validity of IPv6 extension headers. By default, this option is disabled.

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Enable NetBIOS name query response for ISATAP – Select this option if you want the SonicWALL appliance to generate a NetBIOS name in response to an ISATAP query. By default, this option is disabled.

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Resolved name ISATAP is valid for (seconds) – If you enabled generation of a NetBIOS name, you can specify the time, in seconds, that the name remains valid. The default value is 900 seconds (15 minutes).