Nat - Auerswald COMfortel D-100 Advanced Information

NAT

NAT
SIP NAT traversal
Requirements:
• configured DNS server
When the activated option is selected: Registrar is enabled for the
•
telephone
Active
NAT traversal is performed by the telephone. The SIP request also
contains an "rport" part in which the IP addresses used here (local, public)
are transported.
Active with STUN
NAT traversal is performed by the telephone. To do this, you must also
specify a STUN server.
Caution: Each time a port is opened on the NAT router, this creates a
potential security risk. Implement appropriate security measures.
Inactive
NAT traversal is not performed by the telephone. The router which
connects the local area network with the Internet should be a properly
functioning SIP-aware router which performs NAT traversal.
COMfortel D-100 / D-200 - Firmware V1.2 - Advanced Information V02 12/2019
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