D-Link DFL-260E User Manual page 514

13.1. IP Level Settings
Chapter 13. Advanced Settings
IP Reserved Flag
Indicates what NetDefendOS will do if there is data in the "reserved" fields of IP headers. In normal
circumstances, these fields should read 0. Used by OS Fingerprinting.
Default: DropLog
Strip DontFragment
Strip the Don't Fragment flag for packets equal to or smaller than the size specified by this setting.
Default: 65535 bytes
Multicast Mismatch option
What action to take when Ethernet and IP multicast addresses does not match.
Default: DropLog
Min Broadcast TTL option
The shortest IP broadcast Time-To-Live value accepted on receipt.
Default: 1
Low Broadcast TTL Action option
What action to take on too low broadcast TTL values.
Default: DropLog
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