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<P>Hi</P>
<P> </P>
<P>This problem is driving me crazy.</P>
<P>I have two severs which are trunked by the sip</P>
<P> </P>
<P>Asterisk box A is natted thus in my sip.conf file I use the following</P>
<P>externip=DDNS address</P>
<P> </P>
<P>Asterisk box B is NOT natted and has a static IP.</P>
<P>Asterisk box A and B are both registered with each other.</P>
<P> </P>
<P>B holds the address of the DDNS public IP of A</P>
<P>for the sip trunk.</P>
<P>Everything works fine.</P>
<P> </P>
<P>The problem comes in when on BOX A</P>
<P>I make a seperate PPPOE connection to route</P>
<P>only VOIP packets to BOX B.</P>
<P> </P>
<P>BOX B still gets the DDNS address of BOX A</P>
<P>and not the new PPPOE address</P>
<P>This causes all sip requests to be rejected on BOX B</P>
<P>due to authenication failer</P>
<P> </P>
<P>I traced it down the problem to the externip command in sip.conf</P>
<P>When I turn off externip, BOX B gets the correct PPPOE IP of BOX A.</P>
<P> </P>
<P>I dont think I can just disable externip due to natting</P>
<P>as other sip clients need to access BOX A outside of</P>
<P>its network.</P>
<P> </P>
<P>Anyone have any ideas on this problem or how to solve it</P>
<P> </P>
<P>Zakir</P>
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