[VoIP] SIP/firewall problem - the saga (continues)

John Novack jnovack at stromberg-carlson.org
Sat Nov 11 12:09:09 CST 2006


> Yes, it is.  My desktop PCs are in the Green Zone, and my servers are in
> the DMZ (orange interface).
>
> Biggest thing, though, is that I double checked my port forwarding, and
> see that I have ports 10000-20000 UDP forwarded to the Asterisk box.
> So, I stand corrected.  
I had a problem appear with my Stanaphone SIP, then discovered that I 
had put my Asterisk box into the DMZ AND did port forwarding, and it 
didn't seem to like that at all
Once I left port forwarding for SIP and IAX alone, and removed the 
Asterisk box from the DMZ, Stanaphone started to work properly once again.
Since I mostly blunder into and out of all of this stuff, and really 
don't have much of a clue, I can't say why it worked. Or why some time 
before I had enabled the DMZ
This is with a cheep Linksys 8 port router. I had problems earlier with 
their 4 port version and SIP, which would die after 18 minutes. I was 
not aware that Richard Nixon did router software.
Don't mean to add to the confusion. Just another SIP horror story
Unfortunately there are few IAX devices available for use where a full 
blown Asterisk box isn't warranted.
Has anyone been brave enough yet to attempt a minimal Asterisk 
installation into one of the Linksys routers. I have read about this 
being done with the proper router version, but as with most things 
Linux, the "how to do it for Dummies" isn't available.

John Novack




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