[SR-Users] Private IP in SDP packet headers

[Alex]

Hello!

Please help to fix problem with sdp headers

UAC Inet -> (X.X.X.X) Kamailio (192.168.30.250) -> Asterisk (192.168.30.2)

When i call from UAC to 9002 i received INVITE/SDP from kamailio

    SIP/2.0 200 OK
    Via: SIP/2.0/UDP 192.168.1.52:27080
;received=10.10.101.50;branch=z9hG4bK-d8754z-027c786dac17bf68-1---d8754z-;rport=27080
    Record-Route:
<sip:192.168.30.2;line=sr-mYtaP6eErk-dx6VfrLzfr6BaPGj0OHFfPYd0OHFfPYIQpHmFr9mQPKDEx9VlvZ8QO4ttma**>
    Record-Route: <sip:X.X.X.X;r2=on;lr=on;ftag=0748d948;nat=yes>
    From: <sip:user4 at X.X.X.X>;tag=0748d948
    To: <sip:9002 at X.X.X.X>;tag=as3914e1d1
    Call-ID: ZWU5YmFiNTNhNmNmYWQzYzhkZWUzZDNjOTU3MDFiNGU.
    CSeq: 2 INVITE
    Server: Virtel.net Node2
    Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY,
INFO, PUBLISH, MESSAGE
    Supported: replaces, timer
    Contact: <sip:192.168.30.2;line=sr-mYtaP62ar9nzrg20y6eYPA-LrA-0P6Bax6z*>
    Content-Type: application/sdp
    Content-Length: 278

    v=0
    o=root 732368067 732368067 IN IP4 X.X.X.X
    s=Asterisk PBX 11.17.1
    c=IN IP4 X.X.X.X
    t=0 0
    m=audio 15768 RTP/AVP 0 8 101
    a=rtpmap:0 PCMU/8000
    a=rtpmap:8 PCMA/8000
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-16
    a=ptime:20
    a=sendrecv
    a=nortpproxy:yes

Why Record-Route and Contact fields contain private IP of asterisk ?
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