description-logo Description

This indicates an attempt to use the SIP protocol under NAT.
The SIP user agent would add a port number in the Via header. In a NAT environment, the port number added to the Via header is different. This signature will detect if the user agent initiating the SIP request is behind a NAT.

affected-products-logoAffected Products

SIP

Impact logoImpact

Network bandwidth consumption

Technology

Browser-Based, Network-Protocol, Client-Server, Peer-to-Peer, Cloud-Based, Mobile-Device

Behavior

  • Excessive-Bandwidth