Signature Detail
Short Name |
TFTP:AUDIT:C2S-UNEXP-ACK |
|---|---|
Severity |
Info |
Recommended |
No |
Category |
TFTP |
Release Date |
2003/04/22 |
Update Number |
1213 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+ |
TFTP: REQUEST: Unexpected ACK
This protocol anomaly is an unexpected ACK sent from a client. Normally, ACKs are sent by the client when the client attempts to read a file from the server and respond to the DATA messages sent by the server. This can indicate a tunneling attempt.
Extended Description
None
References