Hi,<br><br>I am new to STUNNEL and I find it very useful for what I am doing right now. I would like to know if STUNNEL does support the functionality I require. I shall describe the situation below.<br><br>I run a&nbsp; SIP messaging server (SIP is a VoIP protocol used to establish voice calls over the Internet). STUNNEL is running on the same machine as the SIP server. The SIP server listens on a specific port say 8000 so I have
<br>in the config file<br><br>[sip-new]<br>accept = 10000<br>connect = localhost:8000<br><br>and it works beautifully as the client sends the message through a SSL connection to port 10000 on the machine. So far so good. 
<br><br>Now I need the server to send a message to the client. <br><br>SIP server -----&gt; STUNNEL ------&gt; client . <br><br>Here STUNNEL acts as a SSL client and the client acts as the SSL server. (Both the client and STUNNEL support this functionality), so in the config file I have
<br><br>[sip-client]<br>accept = 11000 <br>connect = ?:8000<br><br>How can I code in the client IP address (I know the port number where the client&#39;s SSL server is listening on) when I dont know the client IP address before hand ? (The client is typically assigned IP address by a DHCP server) and I will have more than one client which would be acting as a server. 
<br><br>The SIP server will know the client&#39;s IP address when the client sends a request. (SIP server can determine the IP address from the SIP message and not from the IP header) . So now the message from the SIP server will have the client&#39;s IP address but STUNNEL does not have a config for that IP address (since it is dynamic and I need to support many clients) and hence STUNNEL will not create a SSL tunnel to the client. 
<br><br>Can I have wildcard for the IP address ? something like<br>[sip-client]<br>accept = 11000<br>connect = *:8000 and have STUNNEL get the destination IP from the message ?<br><br>I thank you all in advance,<br>Warm Regards
<br>Knight<br><br>