title: Android Emulator (qemu) does not allow certain tcp connections (RST,ACK as answer to SYN)
body: <p>Although Internet browsing works in the emulator, my app who also runs in the emulator, is unable to connect to a server on the internet on port 5222 via TCP. I'm pretty sure that there is no firewall involved on my router or on my pc, as I can telnet to that ip:port from my pc.</p>
  
  <p>Here is a screenshot of the packettrace taken on the emulator: <a href="http://i.stack.imgur.com/sIFFM.png" rel="nofollow">http://i.stack.imgur.com/sIFFM.png</a></p>
  
  <p>A packet-trace on the emulated device showed that every SYN packet to that particular port is answered with RST,ACK and the connection is closed by my app with a "connection error".</p>
  
  <p>Why does the emulator block (?) these ports? How can I change it?</p>