[Serusers] NAT travesal: force_rport() what does it do?

[Frank Fischer]

it rewrites the ip port (the private ip port of the device sent with it's
contact info is replaced with the ip port of the public address of that
related client)
 


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From: serusers-bounces at iptel.org [mailto:serusers-bounces at lists.iptel.org] On
Behalf Of Yi Zheng
Sent: Tuesday, January 24, 2006 1:54 AM
To: ser sip
Subject: [Serusers] NAT travesal: force_rport() what does it do?


Hi,
 
I am reading to understand the different solutions for NAT travesal. For
nathelper+RTP proxy solution, what does the force_rport() function do? Is it
rfc3581 compliant? Does it mean that the client needs to understand
"received" and "rport" in the Via header? Thanks,
 
- ming
 

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