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<TITLE>SER, and the two firewall problem</TITLE>
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<P><FONT SIZE=2 FACE="Arial">Hi all --</FONT>
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<P><FONT SIZE=2 FACE="Arial">We're using SER as a registrar and proxy, and need to deal with the following NAT problem:</FONT>
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<LI><FONT SIZE=2 FACE="Arial">SER is proxying to asterisk, which is behind a firewall.</FONT></LI>
<LI><FONT SIZE=2 FACE="Arial">Our users are registering with SER, but their UAs are behind another firewall.</FONT></LI>
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<P><FONT SIZE=2 FACE="Arial">We're looking at nathelper and rtpproxy. Two questions:</FONT>
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<LI><FONT SIZE=2 FACE="Arial">Will this combo (SER, nathelper, rtpproxy) work in this scenario to solve the NAT and pinhole issues?</FONT></LI>
<LI><FONT SIZE=2 FACE="Arial">Does SER have to live outside the firewall, or is there a way it can be behind the same firewall as Asterisk?</FONT></LI>
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<P><FONT SIZE=2 FACE="Arial">Thanks for any insight,</FONT>
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<P><FONT SIZE=2 FACE="Arial">Richard</FONT>
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