| ID | 38938 |
| Released | Jul 29, 2014 |
| Updated | Jul 26, 2016 |
| Category | VoIP |
| Risk |
|
| Popularity |
|
| Deep App Ctrl | No |
| Language | Multiple |
| Deprecated | No |
| Technology | Browser-Based, Network-Protocol, Client-Server, Peer-to-Peer, Cloud-Based, Mobile-Device |
| Behavior |
Excessive-Bandwidth |
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Application Control
SIP.Via.NAT
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
SIP
Impact
Network bandwidth consumption