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    <font size="-1"><tt>Hi,<br>
        <br>
        I try connect client :<br>
        strongSwan 5.6.0, Android 8.0.0 - OPR4.170623.009/2017-10-05,
        Nexus 5X - google/bullhead/LGE, Linux 3.10.73-ga51b1600b7f8,
        aarch64<br>
        <br>
        server:<br>
         ipsec version Linux strongSwan U5.6.0/K4.13.2<br>
        <br>
        connection type<br>
        <br>
        conn vpn-ikev2<br>
        keyexchange=ikev2<br>
                type=transport<br>
                left=13.41.7.54<br>
                leftcert=proxu.s.cert<br>
                <a class="moz-txt-link-abbreviated" href="mailto:leftid=@proxy.domain.com">leftid=@proxy.domain.com</a><br>
                right=%any<br>
                rightca=@#0b:c3:d4:33:....<br>
                authby=rsasig<br>
                keyingtries=%forever<br>
                leftsubnet=0.0.0.0/0<br>
                rightdns=192.168.0.2<br>
                rightrsasigkey=%cert<br>
        <br>
        conn vpn-ikev2-android<br>
        <------>also="vpn-ikev2"<br>
                rightid="C=PL, ST=Malopolska, O=Test, OU=Sec man,
        <a class="moz-txt-link-abbreviated" href="mailto:CN=androidclient@domain.com">CN=androidclient@domain.com</a>, <a class="moz-txt-link-abbreviated" href="mailto:E=android@domain.com">E=android@domain.com</a>"<br>
                auto=add<br>
                rightsourceip=192.168.0.100/32<br>
        <br>
        <br>
        Windows clients can connect well, but when android trying i have
        error in logs<br>
        <br>
      </tt><tt>charon: 10[IKE] DH group CURVE_25519 inacceptable,
        requesting CURVE_25519<br>
        <br>
        what that mean curve_25519 != curve_25519??<br>
        <br>
      </tt></font><br>
    <pre wrap="">Every helpful hint would be highly appreciated.
Rafał 
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