1. Do not change the TTL value: Enabled Disabled
2. IGMP : Enabled Disabled
3. DMZ(Demilitarized Zone) is used to allow a single computer on the LAN to be exposed to the Internet. Enabled Disabled
4. SPI mode You can setup this item if you want to enable SPI mode. Enabled Disabled
5. UPnP Setting You can disable or enable UPnP functions at anytime. Enabled Disabled
6. DoS protection You can setup this item if you want to enable DoS protection. Enabled Disabled

Хотелось бы понять для чего это всё???