the problem is not NAT .  My Asterisk does not have any public IP Address . How can I proxy the registration requests from kamailio ( with Public IP Address ) to asterisk ( With private IP address ) .  The goal is to allow remote users to register in my asterisk server .  Am Montag, 24. Juli 2023 um 10:54:16 MESZ hat John shuku <john.shuki(a)yahoo.com> Folgendes geschrieben: the problem is not NAT .  My Asterisk does not have any public IP Address . How can I proxy the registration requests from kamailio ( with Public IP Address ) to asterisk ( With private IP address ) .  The goal is to allow remote users to register in my asterisk server .  Am Montag, 24. Juli 2023 um 10:34:52 MESZ hat Lewis Hutchinson <lewis.hutchinson(a)missionlabs.co.uk> Folgendes geschrieben: This is always a good place to start https://www.fredposner.com/1457/kamailio-behind-nat/ Lewis Mission Labs Limited is registered in England, company number 10040088. Trading Office: The Old Milk Depot, Bacup Rd, Rossendale, BB4 7FE. Registered office: The Scalpel, 18th Floor 52 Lime Street, London, EC3M 7AF. Email confidentiality notice: This message is private and confidential. If you have received this message in error, please notify us and remove it from your system. Please consider the environment before you print this email. __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to sr-users-leave(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:

On Mon, 24 Jul 2023 at 18:47, Alex Balashov <abalashov(a)evaristesys.com> wrote: For future googlers and future me: you will need Asterisk ≥ 18.17.0, 20.2.0 to have fixed Path support in chan_pjsip. https://issues.asterisk.org/jira/browse/ASTERISK-30100 Those are very recent versions of Asterisk. For kamailio config you could take a look at the sample config of the outbound module: this loads the path module and adds suitable Path headers towards an internal registrar. However, as Alex mentioned, this whole thing is quite fraught. It depends on the registrar storing the Path header, and using it on INVITE - which was the problem with earlier versions of Asterisk. Regards Richard

Thank you for the helpful answers and sharing your experiences and knowledge. Yes I would rather try vpn and also will engage an expert regarding this implementation .  Am Montag, 24. Juli 2023 um 14:10:46 MESZ hat Sergio Charrua <sergio.charrua(a)voip.pt> Folgendes geschrieben: As far as i understand, Kamailio is probably in a Datacenter somewhere and the Asterisk box is in an Office without any public IP address forwarding data directly to the Asterisk. The best solution I can think of  (in terms of security and ease of use) is using a VPN between Kamailio and your client's Asterisk box. Kamailio would forward all SIP messages to Asterisk via the VPN connection (OpenVPN is a very good solution) and RTPEngine would also have to be set up on the Kamailio box.  Without a VPN, you could use the Contact of Path modules and have your Asterisk register on Kamailio, but you would have to do some code because of the NAT issues. I would keep things simple, set up a VPN and have Kamailio and Asterisk "think" they're on the same network.  Sérgio Charrua www.voip.pt Tel.: +351 21 130 71 77 Email : sergio.charrua(a)voip.pt | This message and any files or documents attached are strictly confidential or otherwise legally protected.  It is intended only for the individual or entity named. If you are not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free. |     On Mon, Jul 24, 2023 at 10:16 AM John shuku <john.shuki(a)yahoo.com> wrote: the problem is not NAT .  My Asterisk does not have any public IP Address . How can I proxy the registration requests from kamailio ( with Public IP Address ) to asterisk ( With private IP address ) .  The goal is to allow remote users to register in my asterisk server .  Am Montag, 24. Juli 2023 um 10:34:52 MESZ hat Lewis Hutchinson <lewis.hutchinson(a)missionlabs.co.uk> Folgendes geschrieben: This is always a good place to start https://www.fredposner.com/1457/kamailio-behind-nat/ Lewis Mission Labs Limited is registered in England, company number 10040088. Trading Office: The Old Milk Depot, Bacup Rd, Rossendale, BB4 7FE. Registered office: The Scalpel, 18th Floor 52 Lime Street, London, EC3M 7AF. Email confidentiality notice: This message is private and confidential. If you have received this message in error, please notify us and remove it from your system. Please consider the environment before you print this email. __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to sr-users-leave(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to sr-users-leave(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to sr-users-leave(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: