<div dir="ltr"><div>Thank you dear Mojtaba for your support. The problem is resolved now. We had a gateway between our UE and P-CSCF that was NATing UE's packets. By deleting the NAT rules everything worked and P-CSCF sent 200 code back to the UE. Thanks again. Regards</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Oct 11, 2022 at 2:42 PM Mojtaba <<a href="mailto:mespio@gmail.com">mespio@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Please check it with other IMS clients such as Boghe IMS client. It supports all type of alg mode.<br></div><div>cheers<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Oct 9, 2022 at 8:58 PM Ali Akbar Hemmati <<a href="mailto:hemmati.ali.a@gmail.com" target="_blank">hemmati.ali.a@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> No, I'm not sure. Is there any way to check it? <br><br>On Sunday, October 9, 2022, Mojtaba <<a href="mailto:mespio@gmail.com" target="_blank">mespio@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Are you sure, your client "
<span></span>User-Agent: IM-client/OMA1.0 HW-Rto/V1.0
" use the AKAv1 algorithm for Authentication?</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Oct 9, 2022 at 12:22 PM Ali Akbar Hemmati <<a href="mailto:hemmati.ali.a@gmail.com" target="_blank">hemmati.ali.a@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Yes, the pcap file is attached. The ip of the P-CSCF is 192.168.11.135. Also 192.168.11.60 is the ip from which UE reaches P-CSCF. <div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Oct 9, 2022 at 10:49 AM Mojtaba <<a href="mailto:mespio@gmail.com" target="_blank">mespio@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hello Ali,</div><div>There are some critical points that should be checked for doing this process, But would you please attach the pcap file of the registration process, <br></div><div>Cheers<br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Oct 8, 2022 at 2:24 PM Ali Akbar Hemmati <<a href="mailto:hemmati.ali.a@gmail.com" target="_blank">hemmati.ali.a@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hi everyone, </div><div>I am using Kamailio as an IMS server. The UE first sends its SIP REGISTER over TCP and gets a 401 in response. Then the UE starts sending its packets over ESP. These ESP packets reach P-CSCF but are not delivered to its process by the kernel. We can see ESP packets in P-CSCF using wireshark. The ports used are correct (both client and server) based on their prior negotiations. We have also checked xfrm policies using the command `ip xfrm policy list` and seems right regarding prior negotiations. Our Linux kernel version is 5.4 and the OS is Ubuntu 20.04. Has anyone any clue of the root cause of this problem? Any ideas are appreciated.</div><div><br></div><div>Thanks, </div><div>Aliakbar </div></div>
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