""ET INFO Session Traversal Utilities for NAT (STUN Binding Request)""

SID: 2016149

Revision: 3

Class Type: misc-activity

Metadata: created_at 2013_01_04, deployment Perimeter, deployment alert_only, signature_severity Informational, updated_at 2023_04_24

Reference:

• Link

Protocol: udp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 3478

Flow:

Contents:

• Value: "|00 01|" Depth: 2

• Value: "|21 12 a4 42|"

Within: 4

PCRE:

Special Options:

source