Signature Detail
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Short Name |
SCADA:MODBUS:LENGTH |
|---|---|
Severity |
Info |
Recommended |
No |
Category |
SCADA |
Keywords |
Illegal Packet Size |
Release Date |
2005/02/16 |
Update Number |
1213 |
Supported Platforms |
idp-4.0 - idp-5.0, isg-3.0 - isg-3.4 |
MODBUS: Illegal Packet Size
This signature detects Modbus packet sizes over 260 bytes. Modbus packets are limited to 7 bytes of headers and 253 bytes of data. It is strongly recommended that a TCP frame transports only one Modbus ADU.
References