Kamailio as sip proxy according rfc adds via by its own based on set up you making in cfg file. You doing something wrong, explanations above have to work. 

On Fri, 31 Jan 2020, 07:42 vinod mn, <vinodmn.dbit@gmail.com> wrote:
Anyone let me know is it possible to modify the public-IP in via to private-IP.


On Thu, Jan 30, 2020 at 4:41 PM vinod mn <vinodmn.dbit@gmail.com> wrote:
Thank's david 

in my kamailio configuration I am using listen=udp:192.168.131.69:5060 advertise 221.20.20.12:5060 (as mentioned by you)
and when the kamailio sends an invite to sip-gateway I am seeing this 
sip-gateway ip is  192.168.132.67    and this gateway don't have any public-ip assigned ..

Via: SIP/2.0/UDP 221.20.20.12:5060;branch=z9hG4bKaa6a.14c65f5675077ae7b0df70b02516979b.0
Via: SIP/2.0/UDP 192.168.113.112 :50386;received= 192.168.113.112 ;branch=z9hG4bK-d87543-550b984016109617-1--d87543-;rport=50386  

I want  private ip instead of public ip in the first via 

--
Thanks and regards 
Vinod.M.N


--
Thanks and regards 
Vinod.M.N
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