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Intrusion prevention event descriptions
| ID | Event | Notes |
| 200 | Region Too Big | A region (edit region, uri etc) exceeded the maximum allowed buffering size (7570 bytes) without being closed. This is usually because the data does not conform to the protocol. |
| 201 | Insufficient Memory | The packet could not be processed properly because resources were exhausted. This can be because there are too many concurrent connections at the same time or simply because the system is out of memory. |
| 202 | Maximum Edits Exceeded | The maximum number of edits (32) in a single region of a packet was exceeded. |
| 203 | Edit Too Large | Editing attempted to increase the size of the region above the maximum allowed size (8188 bytes). |
| 204 | Max Matches in Packet Exceeded | There are more than 2048 positions in the packet with pattern match occurrences. An error is returned at this limit and the connection is dropped because this usually indicates a garbage or evasive packet. |
| 205 | Engine Call Stack Too Deep | |
| 206 | Runtime Error | Runtime error. |
| 207 | Packet Read Error | Low level problem reading packet data. |
| 300 | Unsupported Cipher | An unknown or unsupported Cipher Suite has been requested. |
| 301 | Error Generating Master Key(s) | Unable to derive the cryptographic keys, Mac secrets, and initialization vectors from the master secret. |
| 302 | Record Layer Message (not ready) | The SSL state engine has encountered an SSL record before initialization of the session. |
| 303 | Handshake Message (not ready) | The SSL state engine has encountered a handshake message after the handshake has been negotiated. |
| 304 | Out Of Order Handshake Message | A well formatted handshake message has been encountered out of sequence. |
| 305 | Memory Allocation Error | The packet could not be processed properly because resources were exhausted. This can be because there are too many concurrent connections at the same time or simply because the system is out of memory. |
| 306 | Unsupported SSL Version | A client attempted to negotiate an SSL V2 session. |
| 307 | Error Decrypting Pre-master Key | Unable to un-wrap the pre-master secret from the ClientKeyExchange message. |
| 308 | Client Attempted to Rollback | A client attempted to rollback to an earlier version of the SSL protocol than that which was specified in the ClientHello message. |
| 309 | Renewal Error | An SSL session was being requested with a cached session key that could not be located. |
| 310 | Key Exchange Error | The server is attempting to establish an SSL session with temporarily generated key. |
| 311 | Maximum SSL Key Exchanges Exceeded | The maximum number of concurrent key exchange requests was exceeded. |
| 312 | Key Too Large | The master secret keys are larger than specified by the protocol identifier. |
| 313 | Invalid Parameters In Handshake | An invalid or unreasonable value was encountered while trying to decode the handshake protocol. |
| 314 | No Sessions Available | |
| 315 | Compression Method Unsupported | |
| 316 | Unsupported Application-Layer Protocol | An unknown or unsupported SSL Application-Layer Protocol has been requested. |
| 500 | URI Path Depth Exceeded | Too many "/" separators. Max 100 path depth. |
| 501 | Invalid Traversal | Tried to use "../" above root. |
| 502 | Illegal Character in URI | Illegal character used in uri. |
| 503 | Incomplete UTF8 Sequence | URI ended in middle of utf8 sequence. |
| 504 | Invalid UTF8 encoding | Invalid or non-canonical encoding attempt. |
| 505 | Invalid Hex Encoding | %nn where nn are not hex digits. |
| 506 | URI Path Length Too Long | Path length is greater than 512 characters. |
| 507 | Invalid Use of Character | Use of disabled characters |
| 508 | Double Decoding Exploit | Double decoding exploit attempt (%25xx, %25%xxd, etc). |
| 700 | Invalid Base64 Content | Packet content that was expected to be encoded in Base64 format was not encoded correctly. |
| 710 | Corrupted Deflate/GZIP Content | Packet content that was expected to be encoded in Base64 format was not encoded correctly. |
| 711 | Incomplete Deflate/GZIP Content | Incomplete Deflate/GZIP content |
| 712 | Deflate/GZIP Checksum Error | Deflate/GZIP checksum error. |
| 713 | Unsupported Deflate/GZIP Dictionary | Unsupported Deflate/GZIP dictionary. |
| 714 | Unsupported GZIP Header Format/Method | Unsupported GZIP header format or method. |
| 801 | Protocol Decoding Search Limit Exceeded | A protocol decoding rule defined a limit for a search or pdu object but the object was not found before the limit was reached. |
| 802 | Protocol Decoding Constraint Error | A protocol decoding rule decoded data that did not meet the protocol content constraints. |
| 803 | Protocol Decoding Engine Internal Error | |
| 804 | Protocol Decoding Structure Too Deep | A protocol decoding rule encountered a type definition and packet content that caused the maximum type nesting depth (16) to be exceeded. |
| 805 | Protocol Decoding Stack Error | A rule programming error attempted to cause recursion or use to many nested procedure calls. |
| 806 | Infinite Data Loop Error |
