8 Apr
2005
8 Apr
'05
8:34 a.m.
m36828253-1@imap.1and1.com wrote:
- Make sure you are not behind a Symmetric NAT. If so, you're dead. STUN
does not work with Symmetric NAT.
If a UA is behind Symmetric NAT, and UA use STUN, and SER have [RTP/Media]Proxy to handle Symmetric NAT, this UA should be fine, right?
The UA will use STUN to detect the NAT type. In case of symmetric NAT it must not write public IP addresses into the SIP messages. Thus, ser can detect that the client needs NAT traversal and enforces nathelper/rtpproxy.
regards, klaus