Chapter 30 ADP

Table 170 HTTP Inspection and TCP/UDP/ICMP Decoders (continued)

LABEL

DESCRIPTION

TRUNCATED-HEADER

This is when a UDP packet is sent which has a UDP datagram

ATTACK

length of less the UDP header length. This may cause some

 

applications to crash.

 

 

UNDERSIZE-LEN ATTACK

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.

 

 

ICMP Decoder

 

 

 

TRUNCATED-ADDRESS-

This is when an ICMP packet is sent which has an ICMP datagram

HEADER ATTACK

length of less than the ICMP address header length. This may cause

 

some applications to crash.

 

 

TRUNCATED-HEADER

This is when an ICMP packet is sent which has an ICMP datagram

ATTACK

length of less than the ICMP header length. This may cause some

 

applications to crash.

 

 

TRUNCATED-TIMESTAMP-

This is when an ICMP packet is sent which has an ICMP datagram

HEADER ATTACK

length of less than the ICMP Time Stamp header length. This may

 

cause some applications to crash.

 

 

 

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ZyWALL USG 100/200 Series User’s Guide