5450 Four-Port Router User’s Guide
Configuring Advanced Features
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TCP FIN
An outside device can send an attack using TCP FIN. This attack never allows a data packet to finish
transmitting and brings down your system.
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TCP XMAS
An outside device can send an attack using TCP packets with all the flags set. This causes your
system to slow to a halt.
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Fragmented TCP Packet
An outside device can send an attack using fragmented packets to allow an outside user Telnet
access to a device on your network.
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Fragmented TCP Header
An outside device can send an attack using TCP packets with only a header and no payload. When
numerous packets are sent through the router in this manner, your system slows and halts.
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Fragmented UDP Header
An outside device can send an attack using fragmented UDP headers to bring down a device on your
network.
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Fragmented ICMP Header
An outside device can send an attack using fragmented ICMP headers to bring down a device on your
network.
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Inconsistent UDP/IP header lengths
An outside device can send an attack using inconsistent UDP/IP headers to bring down a device on
your network.
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Inconsistent IP header lengths
An outside device can send an attack using changes in the IP header to zero the fragment offset field.
This will be treated as a complete packet when received and cause your system to halt.
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