D-Link DIR-822K User Manual page 64

Enable DoS Prevention: You can enable the DDOS prevention Feature here to stop malicious attacks.
Whole System Flood: SYN: enable this to Prevent attacks affecting traffic denial to a server.
Whole System Flood: FIN: enable this to Prevent attacks affecting Packet traffic .
Whole System Flood: UDP: enable this to Prevent attacks that cause packet flooding to overwhelm or stop device ability to function.
Whole System Flood: ICMP: enable this to Prevent attacks that cause echo-requests (pings) to overwhelm device stability.
Per-Source IP Flood SYN: enable this to Prevent attacks that cause massive number of SYN requests to a server with open connections.
Per-Source IP Flood FIN: enable this to Prevent attacks that cause disruption of network activity due to bandwidth saturation.
Per-Source IP Flood UDP: enable this to Prevent attacks that cause UDP packets to overwhelm or stop a device ability to function.
Per-Source IP Flood ICMP: enable this to Prevent attacks that cause ICMP packets to overwhelm a device and the connection to it.
TCP/UDP Port Scan: enable to Prevent a port from being scanned or have its network status checked.
ICMP Smurf: enable to Prevent a flood of ICMP request packets.
IP Land: enable to Prevent attacks that can consist of sending special poison spoofed packets to a computer causing a lock-up.
IP Spoof: enable to Prevent the creation of IP packets with a false source Ip to impersonate another computer.
IP Teardrop: enable to Prevent attacks that flood the computer resource and cause instability.
Ping of Death: enable to Prevent attacks that can crash, destabilize or freeze a computer by sending oversized packets.
TCP Scan: enable to Prevent attacks that can sneakily scan open ports for intrusion.
TCP Syn With Data: enable to Prevent attacks that allow a server and client to pair or exchange message data.
UDP Bomb: enable to prevent Spoof IP to generate packets to overload the target the server.
UDP Echo Chargen: enable to Prevent and attack that can trigger the Echo-Chargen by spoofing a conversation between the Echo
request/Reply service.
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