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List:       ipcop-user
Subject:    Re: [IPCop-user] iax2 vpn questions
From:       Spyros Tsiolis <stsiol () yahoo ! co ! uk>
Date:       2014-05-04 7:57:08
Message-ID: 1399190228.77344.YahooMailBasic () web28805 ! mail ! ir2 ! yahoo ! com
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Hi David,

Thank you very much for your kind reply.
Still trying to hunt this down and discover who is responsible;
Elastix or ipcop. At the moment I am leaning towards elastix.

I restarted the two asterisk / elastix boxes and now the iax2 =

trunk is up and running.

I will upgrade to 2.1.5 as soon as i possibly can.
Unfortunately, one of the two sites houses the smtp/pop3
mail server and I have issues with the DMZ on v2.x

I have a suspicion that every time the DSL loop goes down
on the remote office (don't ask, big pain the neck since 2005 !),
the asterisk housed there looses the iax2 trunk and cannot =

re-establish it unless the whole system gets restarted.

Thank you again,

I'll investigate what you describe on your e-mail.

s.



--------------------------------------------
On Sun, 4/5/14, Dave Evans <dave.evans@goodness.co.uk> wrote:

 Subject: Re: [IPCop-user] iax2 vpn questions
 To: ipcop-user@lists.sourceforge.net
 Date: Sunday, 4 May, 2014, 0:35
 =

 for what it's worth,
 we had a lot of trouble with site-to-site VPNs on =

 versions from 2.0.3 up to 2.0.6 (worked fine on
 1.4.21), the later =

 revisions have fixed the
 problems.=A0 It seemed to be an MTU problem where =

 packets over a certain size would be dropped,
 we had to fix the MTU on =

 the interfaces of
 the hosts which needed to communicate over the VPN =

 tunnel, as the tunnel could not successfully
 fragment & reassemble =

 packets (it
 seemed).
 upgrading to 2.1.10 and up seems to
 have fixed it (but breaks the =

 copplus
 DansGuardian add-on we were using - so we've had to
 switch to =

 URLfilter)
 so if
 upgrading to 2.1.5 is not an option you might try
 experimenting =

 with the MTU on the two boxes
 which are trying to communicate over the VPN.
 =

 Dave
 =

 On 03/05/2014 19:32, Spyros Tsiolis wrote:
 > Hello all,
 >
 > There are two ipcop v1.4.21 boxes that
 have a static vpn between them.
 > Both
 boxes run on static ips (one runs on a single static, while
 the other
 > runs on a /28 network) and
 both networks have asterisk servers running fine.
 >
 > Up until now, the two
 asterisk pbxs could establish an iax2 trunk to let
 > the employees of one office to talk to the
 employees of the other office
 > and vice
 versa.
 >
 > These days
 I have a problem establishing the iax2 trunk.
 > The two asterixes don't / cannot
 establish the connection.
 >
 > Afaik, iax2 runs a single UDP port on
 4569.
 >
 > I checked
 "connection" under the ipcop boxes and the
 following shows :
 >
 >
 udp (17) =A0=A0=A0 22 =A0=A0=A0 =A0=A0=A0 192.168.15.5 :4569 =A0=A0=A0
 10.0.20.5 :4569 =A0=A0=A0 10.0.20.5 :4569 =A0=A0=A0
 <REAL_IPCop_IP_ON_THE_OUTSIDE> :4569 =A0=A0=A0
 [UNREPLIED] =A0=A0=A0 1
 >
 > 192.168.15.5 is one asterisk while
 10.0.20.5 is the other.
 >
 > Am I missing something here ?
 > I've been struggling with this for the
 last two weeks and I don't see anything wrong with
 it.
 >
 > This is a
 tried-and-tested scenario that used to function.
 >
 > thank you for your
 time,
 >
 > s.
 >
 >
 >
 >
 --------------------------------------------------------------------------=
----
 > "Accelerate Dev Cycles with Automated
 Cross-Browser Testing - For FREE
 >
 Instantly run your Selenium tests across 300+ browser/OS
 combos.=A0 Get
 > unparalleled scalability
 from the best Selenium testing platform available.
 > Simple to use. Nothing to install. Get
 started now for free."
 > http://p.sf.net/sfu/SauceLabs
 >
 _______________________________________________
 > IPCop-user mailing list
 > IPCop-user@lists.sourceforge.net
 > https://lists.sourceforge.net/lists/listinfo/ipcop-user
 =

 =

 --------------------------------------------------------------------------=
----
 "Accelerate Dev Cycles with Automated
 Cross-Browser Testing - For FREE
 Instantly
 run your Selenium tests across 300+ browser/OS combos.=A0 Get
 =

 unparalleled scalability from the best
 Selenium testing platform available.
 Simple
 to use. Nothing to install. Get started now for
 free."
 http://p.sf.net/sfu/SauceLabs
 _______________________________________________
 IPCop-user mailing list
 IPCop-user@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/ipcop-user


---------------------------------------------------------------------------=
---
"Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE
Instantly run your Selenium tests across 300+ browser/OS combos.  Get =

unparalleled scalability from the best Selenium testing platform available.
Simple to use. Nothing to install. Get started now for free."
http://p.sf.net/sfu/SauceLabs
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