<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi all,<div class=""><br class=""></div><div class="">According to Apple and Google¡¯s app review guideline, all apps need to support IPv6-only network, </div><div class="">so I tried to enable ipv6 support on my freeswitch server.</div><div class=""><br class=""></div><div class="">In my development environment, a server with both ipv4 and ipv6 address is ready. </div><div class=""><br class=""></div><div class="">Server Info:</div><blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;" class=""><div class="">Debian stretch 9.9</div><div class="">FreeSWITCH Version 1.8.7+git~20190702T200609Z~6047ebddfc~64bit (git 6047ebd 2019-07-02 20:06:09Z 64bit)</div></blockquote><br class=""><div class="">Also, profile external-ipv6 and internal-ipv6 for freeswitch had also enabled.</div><div class="">In addition, a pure-ipv6 network(no NAT64) is also ready for test.</div><div class=""><br class=""></div><div class="">As the test result, clients could access to server via ipv6-only network for registration(sip package showed in server with siptrack),</div><div class="">but failed to make calls in same network. </div><div class=""><br class=""></div><div class="">Freeswitch log showed a failure in originate, which returned an <font color="#ff2600" class="">606 USER NOT REGISTERED</font>. </div><div class="">Both clients was showed in ¡°show registrations¡± with correct ipv6 address, but Sofia couldn¡¯t get contact string(got 606 in sofia_contact).</div><div class=""><br class=""></div><div class="">Is there any additional settings need for Sofia to enable ipv6 support? Any suggestion would be appreciated.</div><div class=""><br class=""></div><div class="">Regards.</div></body></html>