Telcobridges - Session Border Controllers
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Telcobridges - Session Border Controllers

FREESBC, THE FEATURE RICH, HIGH PERFORMANCE, EASY-TO-USE VIRTUAL SESSION BORDER CONTROLLER

NAT Traversal

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Telcobridges - Session Border Controllers :: Configuration :: Configuration

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NAT Traversal Empty NAT Traversal

Post by Girishdharmaraj Tue Jul 24, 2018 10:00 am

Guys
Any one has tried to use NAT traversal ? My SBC is on public IP and the IP phones is behind NAT. When the IP phone sends RTP from the NAT'ed Public IP, SBC drops with ICMP port unreachable.
If i use ALG or STUN on the device to advertise the public IP on SDP it works.
Any idea ?

Girishdharmaraj

Number of Messages : 2
Point : 4
Registration Date : 2018-07-24

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NAT Traversal Empty Re: NAT Traversal

Post by lmorissette Tue Jul 24, 2018 3:35 pm

In the NAP configuration, there is a setting to support remote NAT. Try this:
NAP -> [Select the NAP] -> Network Address Translation (NAT) -> Remote Method for RTP: Force Passive Mode

You can check here:
https://docs.telcobridges.com/tbwiki/Toolpack:SIP_Configuration_For_Remote_Symmetric_NAT_Traversal_A

lmorissette

Number of Messages : 43
Point : 85
Registration Date : 2017-11-27

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NAT Traversal Empty Re: NAT Traversal

Post by Girishdharmaraj Tue Jul 24, 2018 8:07 pm

Hi support,

Yes i have enabled that, and still does not work.

Girishdharmaraj

Number of Messages : 2
Point : 4
Registration Date : 2018-07-24

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Telcobridges - Session Border Controllers :: Configuration :: Configuration

 
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