ZyXEL Communications 200 Series 用户手册

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Chapter 29 IDP
ZyWALL USG 100/200 Series User’s Guide
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Figure 386   Query Example Search Results
29.7  Introducing IDP Custom Signatures 
Create custom signatures for new attacks or attacks peculiar to your network. Custom 
signatures can also be saved to/from your computer so as to share with others. 
You need some knowledge of packet headers and attack types to create your own custom 
signatures. 
29.7.1  IP Packet Header
These are the fields in an Internet Protocol (IP) version 4 packet header.