NETBIOS NS: Invalid Header OPCODE
This protocol anomaly detects a header with an OPCODE field value that is not 0, 5, 6, 7, or 8.
Extended Description
The value of the OPCODE field in a NetBIOS name service packets should be in the range of 0,5,6,7 or 8. The value outside the range would be treated as a protocol anomaly.
References
mx-19.3
vmx-19.3
vsrx-19.2
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-19.4
vsrx3bsd-19.4
srx-branch-19.4
vsrx-19.4
vmx-19.4
mx-19.4
srxevo-25.4
vsrx-26.2
srx-26.2
srx-branch-26.2
vsrx3bsd-26.2
mx-12.3
srx-12.3
srx-branch-12.3
vsrx-12.3