Protocol Anomaly Configuration - ZyXEL Communications Unified Security Gateway ZyWALL 1000 User Manual

Table 144 HTTP Inspection and TCP/UDP/ICMP Decoders (continued)
LABEL
TRUNCATED-HEADER
ATTACK
UNDERSIZE-LEN ATTACK
ICMP Decoder
TRUNCATED-ADDRESS-
HEADER ATTACK
TRUNCATED-HEADER
ATTACK
TRUNCATED-TIMESTAMP-
HEADER ATTACK

30.9.2 Protocol Anomaly Configuration

In the Anti-X > ADP > Profile screen, click the Edit icon or click the Add icon and choose a
base profile, then select the Protocol Anomaly tab. If you made changes to other screens
belonging to this profile, make sure you have clicked OK or Save to save the changes before
selecting the Protocol Anomaly tab.
ZyWALL USG 1000 User's Guide
DESCRIPTION
This is when a UDP packet is sent which has a UDP datagram
length of less the UDP header length. This may cause some
applications to crash.
This is when a UDP packet is sent which has a UDP length field of
less than 8 bytes. This may cause some applications to crash.
This is when an ICMP packet is sent which has an ICMP datagram
length of less than the ICMP address header length. This may cause
some applications to crash.
This is when an ICMP packet is sent which has an ICMP datagram
length of less than the ICMP header length. This may cause some
applications to crash.
This is when an ICMP packet is sent which has an ICMP datagram
length of less than the ICMP Time Stamp header length. This may
cause some applications to crash.
Chapter 30 ADP
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