[Asterisk-Users] NAT and SIP.conf update.
Derek Conniffe
derek at rivertower.ie
Tue Sep 13 03:36:18 MST 2005
Really? I've found that a dynamic domain name --> IP linkup didn't work
with Asterisk - it seemed to caches the IP of the domain name and didn't
re-lookup the IP until after a reload.
Derek
Jens Vagelpohl wrote:
>> I've found a novel work-a-round: I have a server on the Internet in
>> a data centre that maps a real static address to the dynamic IP
>> address of the computer connected via. the ISP. I've got a script
>> that runs on the client ISP connected machine (its running Linux an
>> the script is in the ppp-up.d directory so runs automatically
>> everytime the pc reconnects and gets a new dynamic IP) - this client
>> script (perl) talks to the server daemon (also perl) and then the
>> data centre server re-maps the static IP to the dynamic IP - it
>> redirects (using socat - excellent software!) to redirect the IAX2
>> port and the RTP ports between the IP addresses so that the normally
>> dynamic IP addressed asterisk server now always has a real live
>> static IP address.
>>
>> This solution is working very well between two remote offices
>> passing calls between the central data server computer.
>>
>> I wonder would this solution help many people? I now couldn't live
>> without it. If other people are interested I could have a little
>> business renting people static mapped IP addresses.
>
>
> Who needs that when there's dyndns and similar free services which
> are even supported by many routers? I have a dyndns hostname and my
> router is configured to contact the dyndns site whenever the IP on
> the public side changes. Works very well for my Asterisk setup at home.
>
> jens
>
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--
Derek Conniffe
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