Re: [asterisk-users] github - mlan

[John Runyon]

If you clone one of their repo's you can see their email address in the
commit log...

On Tue, 7 Feb 2023 at 16:56, Jeff LaCoursiere  wrote:

> Hi all,
>
> Curious if the github user "mlan" is on this list?  Could you please
> contact me off list if so, I was hoping to reference your work in a talk
> at Astricon next week, and... I don't know how to contact github users lol.
>
> Cheers,
>
> --
> Jeff LaCoursiere
> StratusTalk, Inc.
> 703 496 4990 x108
> 815 546 6599 cell
>
>
> --
> _
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
>
> Check out the new Asterisk community forum at:
> https://community.asterisk.org/
>
> New to Asterisk? Start here:
>   https://wiki.asterisk.org/wiki/display/AST/Getting+Started
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>http://lists.digium.com/mailman/listinfo/asterisk-users
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[asterisk-users] github - mlan

[Jeff LaCoursiere]

Hi all,

Curious if the github user "mlan" is on this list?  Could you please 
contact me off list if so, I was hoping to reference your work in a talk 
at Astricon next week, and... I don't know how to contact github users lol.


Cheers,

--
Jeff LaCoursiere
StratusTalk, Inc.
703 496 4990 x108
815 546 6599 cell


--
_
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Re: [asterisk-users] [External] [External] Asterisk rtp.conf stunaddr setting - what happens if there is an outage

[Dan Cropp]

Thank you Joshua

The networking guys did this change on a test box and their jaws dropped to the 
floor when it did exactly as you explained.


From: asterisk-users  On Behalf Of 
Joshua C. Colp
Sent: Tuesday, February 7, 2023 9:22 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion 

Subject: Re: [External] [asterisk-users] [External] Asterisk rtp.conf stunaddr 
setting - what happens if there is an outage

On Tue, Feb 7, 2023 at 11:18 AM Dan Cropp 
mailto:d...@amtelco.com>> wrote:
Thank you Joshua.




Going back to your idea of the ice_host_candidates.  (Again, apologize for my 
ignorance on networking).
Do I understand correctly? We could use this formula for systems that have no 
one accessing the (where 192.168.1.10 is the internal IP) and 1.2.3.4 is the 
NAT’s public IP for Asterisk?

192.168.1.10 => 1.2.3.4,include_local_address

Using this, would we no longer need the stunaddr configured?

You don't need the include_local_address option but otherwise yes. This will 
cause the ICE host candidates to be 1.2.3.4 instead of the local IP address 
192.168.1.10 removing the need to use STUN to discover the public IP address.

--
Joshua C. Colp
Asterisk Project Lead
Sangoma Technologies
Check us out at www.sangoma.com and 
www.asterisk.org
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Re: [asterisk-users] [External] Asterisk rtp.conf stunaddr setting - what happens if there is an outage

[Joshua C. Colp]

On Tue, Feb 7, 2023 at 11:18 AM Dan Cropp  wrote:

> Thank you Joshua.
>




>
>
> Going back to your idea of the ice_host_candidates.  (Again, apologize for
> my ignorance on networking).
>
> Do I understand correctly? We could use this formula for systems that have
> no one accessing the (where 192.168.1.10 is the internal IP) and 1.2.3.4 is
> the NAT’s public IP for Asterisk?
>
>
>
> 192.168.1.10 => 1.2.3.4,include_local_address
>
>
>
> Using this, would we no longer need the stunaddr configured?
>

You don't need the include_local_address option but otherwise yes. This
will cause the ICE host candidates to be 1.2.3.4 instead of the local IP
address 192.168.1.10 removing the need to use STUN to discover the public
IP address.

-- 
Joshua C. Colp
Asterisk Project Lead
Sangoma Technologies
Check us out at www.sangoma.com and www.asterisk.org
-- 
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Re: [asterisk-users] [External] Asterisk rtp.conf stunaddr setting - what happens if there is an outage

[Dan Cropp]

Thank you Joshua.

I’m not very good at networking.  We have a couple people who manage that and 
they were the ones who configured the boxes to use an external STUN server for 
all 4 systems that experienced problems accessing this STUN server at the same 
time.

When all the boxes encountered the problem, each one was stuck in the stun 
timeout.
My understanding is 3 customers reported the problem and we rebooted the 
Asterisk VM.  (They service engineer did not understand he could have forced an 
rtp.conf reload and it should have fixed the STUN issue).  After each of these 
VMs were reset, everything worked.

The fourth customer didn’t report an issue for 8 hours.  (Agents who would have 
been busy apparently notified no one to the issue).
When this VM was reset, it also started working again.  If I understand 
correctly, this is a good indication the DNS sent a TTL longer than 8 hours.

I was told they ran a test and the DNS server was indicating the TTL was 120 
seconds (but this was 2 days after the issue).  I wonder if the AWS DNS had a 
hiccup and sent a TTL of 24 hours, but then either self-corrected or was 
manually corrected for the TTL we require.


Going back to your idea of the ice_host_candidates.  (Again, apologize for my 
ignorance on networking).
Do I understand correctly? We could use this formula for systems that have no 
one accessing the (where 192.168.1.10 is the internal IP) and 1.2.3.4 is the 
NAT’s public IP for Asterisk?

192.168.1.10 => 1.2.3.4,include_local_address

Using this, would we no longer need the stunaddr configured?

Dan



From: asterisk-users  On Behalf Of 
Joshua C. Colp
Sent: Monday, February 6, 2023 4:39 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion 

Subject: Re: [External] [asterisk-users] Asterisk rtp.conf stunaddr setting - 
what happens if there is an outage

On Mon, Feb 6, 2023 at 6:05 PM Dan Cropp 
mailto:d...@amtelco.com>> wrote:
A quick follow-up.

Looking at other customers running 18.12.1 who reported problems at the exact 
same time with AWS issue described below.

We are seeing similar behavior.
For these systems, the third STUN failure occurs.  We were able to answer the 
call because the SIP provider didn’t CANCEL the call.
However, upstream from the service provider the calls were terminated.
Resulting in a call from the SIP provider to Asterisk that’s live, but there is 
no caller so it appears to be dead air.

Does the res_rtp_asterisk stunaddr DNS TTL expiration mentioned in change ID 
I7955a046293f913ba121bbd82153b04439e3465f require the dnsmgr.conf to be enabled?

It doesn't use dnsmgr so it's not required to be enabled. If the TTL is long, 
or it's cached locally then it could stick around longer.

Fundamentally though is there a reason you're using STUN in the first place? 
Can you not just configure the public IP address and not rely on an external 
STUN server? rtp.conf has ice_host_candidates specifically for situations like 
AWS.

--
Joshua C. Colp
Asterisk Project Lead
Sangoma Technologies
Check us out at www.sangoma.com and 
www.asterisk.org
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