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IAX2 PBX to PBX trunk dropping when dynamic dns IP change.

kevern
Posts: 134
 Member Since:
2008-08-16
Submitted by kevern on Sat, 09/20/2008 - 6:36am.

Has anybody configured a IAX2 trunk between two PBX's across public domain using dynamic references in the trunk configs, the system works fine untill dynDNS updates the new IP, then the trunk fails to work until the box is bounced then all is O.K. again.

Here are my config for trunk in iax_additional.conf (added [mirror config for serve B]

[Server1User]
host=196.*.*.* [Server2User] host=hostname.dyndns.org
secret=*******
type=user
context=from-internal

[Server2]
context=from-internal
host=196.*.*.* [Server1] host=hostname.dyndns.org
username=Server2User [Server1] username=Server1User
secret=*******
type=peer
qualify=yes

I have added relevant details in add [] to save time in description.
Has anyone had this problem or can suggest how to solve this?

Thanks.

‹ Remote office IAX trunk, over VPN or Internet? Extension to outside world not recording calls but is set to ›

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SkykingOH
Posts: 9538
 Member Since:
2007-12-17
This is a known issue with
Sat, 09/20/2008 - 10:03am

This is a known issue with Asterisk. Site to site VPN's solve the issue. Seems if the client wants the phone systems connected they need a VPN for the other office applications anyway.

--

Scott

aka "Skyking"


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kevern
Posts: 134
 Member Since:
2008-08-16
HI Scott. Thank you for
Sat, 09/20/2008 - 10:21am

HI Scott.

Thank you for replying, any assistance is greatly appreciated.
A VPN is a great way to go, we have CISCO VPN capability, however we have 10 offices in different naional geographic locations where each will have trixbox firewalled, deployed and trunked.

In this configuration we would wish a star topology where the public cloud becomes the center of the star topology and not one specific location outside of the public cloud.
In laymans terms one site can call any other site without being routed through a central VPN server.
With this in mind it presents mesh redundancy with calling between sites.
Ideally the dynamic adress issues once resolved will constitute a solution for the company in question leveraging lowest cost of implementation.

You mentioned that this problem is known issues with trixbox/Asterisk, if so can you point me to some links for study/Search engine wording or suggest a work around?

Thanks.

Kevern.


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kevern
Posts: 134
 Member Since:
2008-08-16
O.K.Site to Site VPN's are
Sat, 09/20/2008 - 1:31pm

O.K.

Site to Site VPN's are a "work around" for dynamic IP issues, are there any other "work arounds" for dynamic trunking?
Like for Example could I use registration on IAX2 trunk and run something like Argus to reset the trunk when dynamic ip changes (unresponsive trunk) ocurr thus overcomming the need for VPN work around?

Kevern


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