APPLICATION: ESP over UDP / NAT-T
This signature detects IPSec Encapsulation Security Protocol (ESP) being transported over UDP. This is sometimes referred to as NAT Traversal (NAT-T). This permits users to bypass IDP inspection by forwarding their traffic through an encrypted tunnel. Such activity may be a violation of your organization's Acceptable Use Policy.
References
Short Name
APP:TUN:ESP-OVER-UDP
Severity
Warning
Recommended
False
Recommended Action
None
Category
APP
Keywords
/ ESP NAT-T UDP over
Release Date
05/24/2011
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3324
Port
UDP/4500
False Positive
Unknown