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    <font size="-1"><font face="Verdana">Sim sim, consegue......tanto
        por nslookup quanto por ping. O icmp &eacute; bloqueado no provedor,
        mas se dou um nmap consigo ver a porta SIP-5060 aberta.<br>
        <br>
        <br>
        <br>
        Segue tentativa de registro com erro......<br>
        <br>
        11:32:56.383737 IP (tos 0x60, ttl&nbsp; 64, id 15016, offset 0, flags
        [none], proto: UDP (17), length: 676) 192.168.0.8.sip &gt;
        208.239.XXX.XXX.sip: [bad udp cksum 50b8!] SIP, length: 648<br>
        &nbsp;&nbsp;&nbsp; REGISTER <a class="moz-txt-link-freetext" href="sip:sip.NNNNN.com.br">sip:sip.NNNNN.com.br</a> SIP/2.0<br>
        &nbsp;&nbsp;&nbsp; Via: SIP/2.0/UDP
        192.168.0.8:5060;branch=z9hG4bK7e9ab963;rport<br>
        &nbsp;&nbsp;&nbsp; Max-Forwards: 70<br>
        &nbsp;&nbsp;&nbsp; From: <a class="moz-txt-link-rfc2396E" href="sip:XXXXX@sip.NNNNN.com.br">&lt;sip:XXXXX@sip.NNNNN.com.br&gt;</a>;tag=as44f150a5<br>
        &nbsp;&nbsp;&nbsp; To: <a class="moz-txt-link-rfc2396E" href="sip:XXXXXX@sip.NNNNN.com.br">&lt;sip:XXXXXX@sip.NNNNN.com.br&gt;</a><br>
        &nbsp;&nbsp;&nbsp; Call-ID: <a class="moz-txt-link-abbreviated" href="mailto:2db7172b5827170d4e0d52596228dd55@127.0.0.1">2db7172b5827170d4e0d52596228dd55@127.0.0.1</a><br>
        &nbsp;&nbsp;&nbsp; CSeq: 1967 REGISTER<br>
        &nbsp;&nbsp;&nbsp; User-Agent: Asterisk PBX 1.6.2.13<br>
        &nbsp;&nbsp;&nbsp; Authorization: Digest username="XXXXX",
        realm="sip.NNNNN.com.br", algorithm=MD5,
        uri=<a class="moz-txt-link-rfc2396E" href="sip:sip.NNNNN.com.br">"sip:sip.NNNNN.com.br"</a>,
        nonce="4ee8a5e6a1ea3d15ed75716d35fb02c764193097",
        response="0238dcc24dd994e9fc39560765968f2e", qop=auth,
        cnonce="3526d1c2", nc=00000008<br>
        &nbsp;&nbsp;&nbsp; Expires: 120<br>
        &nbsp;&nbsp;&nbsp; Contact: <a class="moz-txt-link-rfc2396E" href="sip:XXXXX@192.168.0.8">&lt;sip:XXXXX@192.168.0.8&gt;</a><br>
        &nbsp;&nbsp;&nbsp; Content-Length: 0<br>
        <br>
        <br>
        <br>
        Estranhei esse 'bad udp cksum'......<br>
        <br>
        <br>
        <br>
        <br>
        <br>
        Duas coisas que acabei de ver......<br>
        <br>
        <br>
        1 - Os logs mostram que o SIP est&aacute; autenticado, mas os problemas
        que mencionei continuam.....<br>
        <br>
        ipbx*CLI&gt; sip show registry<br>
        <br>
        Host&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dnsmgr Username&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Refresh
        State&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Reg.Time&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>
        sip.NNNNN.com.br:5060&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; N&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; XXXXX &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 25
        Registered&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Wed, 14 Dec 2011 11:35:27<br>
        sip.NNNNN.com.br:5060&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; N&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; XXXXX &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 25
        Registered&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Wed, 14 Dec 2011 11:35:27<br>
        2 SIP registrations.<br>
        <br>
        <br>
        <br>
        2 - Dando um Tcpdump eu vejo s&oacute; o pacote saindo do meu servidor,
        horas tenho resposta do provedor, horas n&atilde;o , muito estranho....<br>
        <br>
        Meu IP: 201.55.XX.XX<br>
        Provedor: 208.239.XX.XX<br>
        <br>
        <br>
        <br>
        Resposta normal....<br>
      </font></font><font size="-1"><font face="Verdana">11:39:06.790837
        IP 208.239.XX.XX.sip &gt; 201.55.XX.XX.sip: SIP, length: 369<br>
        11:39:07.625763 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:07.639736 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:07.775340 IP 208.239.XX.XX.sip &gt; 201.55.XX.XX.sip: SIP,
        length: 369<br>
        11:39:07.790691 IP 208.239.XX.XX.sip &gt; 201.55.XX.XX.sip: SIP,
        length: 369<br>
        <br>
        <br>
        E do nada para de responder....<br>
        11:39:09.625412 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:09.639375 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:13.625685 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:13.639646 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:17.624951 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:17.638919 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:20.890599 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 861<br>
        11:39:21.623232 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:21.638215 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:21.891195 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 861<br>
        11:39:22.890031 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 861<br>
        11:39:24.889671 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 861<br>
        11:39:25.636618 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:25.650840 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:26.636310 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:26.650282 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:27.636126 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:27.650099 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:28.889938 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 861<br>
        11:39:29.635770 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        11:39:29.648739 IP 201.55.XX.XX.sip &gt; 208.239.XX.XX.sip: SIP,
        length: 647<br>
        <br>
        <br>
        n&atilde;o lembro de ser assim antes.<br>
        <br>
        <br>
        <br>
        <br>
        <br>
        Obrigado pela ajuda.<br>
        <br>
        <br>
        Kalil<br>
      </font></font><br>
    <br>
    <br>
    <br>
    <br>
    <br>
    <br>
    <br>
    <br>
    Em 14-12-2011 11:26, Thiago J. Lucas escreveu:
    <blockquote
cite="mid:CAE=jNZCnBXsdpjLantGV80B0uK=LYB93VF2r9j4fjb0HGjUVOA@mail.gmail.com"
      type="cite">Seu servidor est&aacute; conseguindo resolver o nome "<a
        moz-do-not-send="true" href="http://NNNNNNNN.com.br">NNNNNNNN.com.br</a>"
      ?<br>
      Caso positivo, nos mande a sinaliza&ccedil;&atilde;o SIP de uma tentativa de
      registro...<br>
      <br>
      -- <br>
      THIAGO JOS&Eacute; LUCAS<br>
      thiagojlucas(at)<a moz-do-not-send="true" href="http://gmail.com/"
        target="_blank">gmail.com</a><br>
      Tecn&oacute;logo em Seguran&ccedil;a de Redes - FATEC<br>
      GNU Linux Registered User Number #499756<br>
      <a moz-do-not-send="true" href="http://thiagolucas.wordpress.com/"
        target="_blank">http://thiagolucas.wordpress.com/</a><br>
      <div class="gmail_quote">2011/12/14 Kalil Costa - Brasilsite <span
          dir="ltr">&lt;<a moz-do-not-send="true"
            href="mailto:kalil@brasilsite.com.br">kalil@brasilsite.com.br</a>&gt;</span><br>
        <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
          0.8ex; border-left: 1px solid rgb(204, 204, 204);
          padding-left: 1ex;">
          <div bgcolor="#ffffff" text="#000000"> <font size="-1"><font
                face="Verdana">Pessoal,<br>
                <br>
                <br>
                Alguem conhece esse erro ?<br>
                <br>
                <br>
                Seguinte, tenho duas contas SIP como trunk em um
                provedor e do nada come&ccedil;ou aparecer esse erro no Log,
                isso come&ccedil;ou na sexta, mas de minha parte n&atilde;o fiz
                nenhuma modifica&ccedil;&atilde;o na configura&ccedil;&atilde;o ou na minha
                estrutura.<br>
                <br>
                <br>
                [Dec 14 11:13:18] NOTICE[17712] chan_sip.c:&nbsp;&nbsp;&nbsp; --
                Registration for '<a moz-do-not-send="true"
                  href="mailto:XXXXXX@NNNNNNN.com.br" target="_blank">XXXXXX@NNNNNNN.com.br</a>'
                timed out, trying again (Attempt #3)<br>
                [Dec 14 11:13:29] NOTICE[17712] chan_sip.c:&nbsp;&nbsp;&nbsp; --
                Registration for '</font></font><font size="-1"><font
                face="Verdana"><a moz-do-not-send="true"
                  href="mailto:XXXXXX@NNNNNNN.com.br" target="_blank">XXXXXX@NNNNNNN.com.br</a></font></font><font
              size="-1"><font face="Verdana">' timed out, trying again
                (Attempt #5)<br>
                [Dec 14 11:13:38] NOTICE[17712] chan_sip.c:&nbsp;&nbsp;&nbsp; --
                Registration for '</font></font><font size="-1"><font
                face="Verdana"><a moz-do-not-send="true"
                  href="mailto:XXXXXX@NNNNNNN.com.br" target="_blank">XXXXXX@NNNNNNN.com.br</a></font></font><font
              size="-1"><font face="Verdana">' timed out, trying again
                (Attempt #4)<br>
                <br>
                <br>
                <br>
                Tem momentos que consigo fazer liga&ccedil;&atilde;o e receber, tem
                momentos que a liga&ccedil;&atilde;o que deveria receber cai na caixa
                postal, como estivesse ocupado, mas n&atilde;o est&aacute; e tamb&eacute;m
                quanto tento fazer liga&ccedil;&atilde;o fica mudo at&eacute; timeout do meu
                servidor.<br>
                <br>
                <br>
                J&aacute; alterei par&acirc;metros abaixo, mas de nada adiantou.<br>
                <br>
                &nbsp;&nbsp;&nbsp; maxexpiry=600<br>
                &nbsp;&nbsp;&nbsp; defaultexpiry=300<br>
                &nbsp;&nbsp;&nbsp; srvlookup=yes<br>
                &nbsp;&nbsp;&nbsp; nat=yes<br>
                <br>
                <br>
                <br>
                Ser&aacute; que pode ser o provedor ?<br>
                <br>
                Uso Elastix 2.0<br>
                <br>
                <br>
                <br>
                Abra&ccedil;os<br>
                <br>
                Kalz</font></font>
            <div><br>
            </div>
          </div>
          <br>
          _______________________________________________<br>
          KHOMP ::: External Series Experience :::<br>
          Um novo conceito para o mercado de aplica&ccedil;&otilde;es que vai<br>
          fazer voc&ecirc; pensar fora da caixa. Aguarde este lan&ccedil;amento<br>
          _______________________________________________<br>
          DIGIVOICE: Lider no mercado de placas para Asterisk<br>
          &Uacute;nico fabricante com Centro de Treinamento especializado.<br>
          LAN&Ccedil;AMENTO: Channel Bank TDMoE, at&eacute; 64 canais FXS / FXO.<br>
          <a moz-do-not-send="true" href="http://www.digivoice.com.br"
            target="_blank">www.digivoice.com.br</a> ou <a
            moz-do-not-send="true" href="tel:%2811%293016-5200"
            value="+551130165200">(11)3016-5200</a>.<br>
          ________<br>
          GATEWAY GSM-SIP, gateway Lyric VoIP com 2,4 e 6 canais GSM v&iacute;a
          tronco SIP<br>
          Escal&aacute;vel at&eacute; 240 can&aacute;is, Portabilidade Num&eacute;rica,
          &nbsp;Balanceamento de Carga, Bilhetagem<br>
          Confira em <a moz-do-not-send="true"
            href="http://www.yx.cl/landing/brasil/lyric_voip_asterisk.org"
            target="_blank">http://www.yx.cl/landing/brasil/lyric_voip_asterisk.org</a><br>
          Shop Voip, representante exclusivo: <a moz-do-not-send="true"
            href="http://www.shopvoip.com.br" target="_blank">www.shopvoip.com.br</a>
          ou <a moz-do-not-send="true" href="tel:0800-6021244"
            value="+558006021244">0800-6021244</a><br>
          ______________________________________________<br>
          Para remover seu email desta lista, basta enviar um email em
          branco para <a moz-do-not-send="true"
            href="mailto:asteriskbrasil-unsubscribe@listas.asteriskbrasil.org">asteriskbrasil-unsubscribe@listas.asteriskbrasil.org</a><br>
        </blockquote>
      </div>
      <br>
      <br clear="all">
      <br>
      -- <br>
      THIAGO JOS&Eacute; LUCAS<br>
      thiagojlucas(at)<a moz-do-not-send="true" href="http://gmail.com/"
        target="_blank">gmail.com</a><br>
      Tecn&oacute;logo em Seguran&ccedil;a de Redes - FATEC<br>
      GNU Linux Registered User Number #499756<br>
      <a moz-do-not-send="true" href="http://thiagolucas.wordpress.com/"
        target="_blank">http://thiagolucas.wordpress.com/</a><br>
      <pre wrap="">
<fieldset class="mimeAttachmentHeader"></fieldset>
_______________________________________________
KHOMP ::: External Series Experience :::
Um novo conceito para o mercado de aplica&ccedil;&otilde;es que vai
fazer voc&ecirc; pensar fora da caixa. Aguarde este lan&ccedil;amento
_______________________________________________
DIGIVOICE: Lider no mercado de placas para Asterisk
&Uacute;nico fabricante com Centro de Treinamento especializado.
LAN&Ccedil;AMENTO: Channel Bank TDMoE, at&eacute; 64 canais FXS / FXO. 
<a class="moz-txt-link-abbreviated" href="http://www.digivoice.com.br">www.digivoice.com.br</a> ou (11)3016-5200.
________
GATEWAY GSM-SIP, gateway Lyric VoIP com 2,4 e 6 canais GSM v&iacute;a tronco SIP
Escal&aacute;vel at&eacute; 240 can&aacute;is, Portabilidade Num&eacute;rica,  Balanceamento de Carga, Bilhetagem
Confira em <a class="moz-txt-link-freetext" href="http://www.yx.cl/landing/brasil/lyric_voip_asterisk.org">http://www.yx.cl/landing/brasil/lyric_voip_asterisk.org</a>
Shop Voip, representante exclusivo: <a class="moz-txt-link-abbreviated" href="http://www.shopvoip.com.br">www.shopvoip.com.br</a> ou 0800-6021244 
______________________________________________
Para remover seu email desta lista, basta enviar um email em branco para <a class="moz-txt-link-abbreviated" href="mailto:asteriskbrasil-unsubscribe@listas.asteriskbrasil.org">asteriskbrasil-unsubscribe@listas.asteriskbrasil.org</a></pre>
    </blockquote>
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