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Mustafa N. Deeb

2005-Feb-07 00:45 UTC

[Asterisk-Users] IAX2 Trunk Problems with NAT

Hi, 

 

I have successfully configured an IAX trunk between 2 asterisks, calls can
go through both ways without any problems, NAT in the middle of course
(iptables)

 

Now , leave them for a while ,   and make a call from the external server ,
it doesn't go through, 

 

Dial from the internal one, everything works fine again..

 

 

Now , it is clearly  a problem in the NAT engine, although IAX shouldn't
have this problem    

 

is there something I can do to prevent asterisk from tearing down the trunk
while it is not used

 

or , modify the iptables so that  to allow the incoming UDP connections

 

 

Cheers

 

h

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Liaan vd Merwe

2005-Feb-07 01:09 UTC

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[Asterisk-Users] IAX2 Trunk Problems with NAT

@page Section1 {size: 8.5in 11.0in; margin: 1.0in 1.25in 1.0in 1.25in;
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underline}SPAN.EmailStyle17 {	COLOR: windowtext; FONT-FAMILY: Arial;
mso-style-type: personal-compose}DIV.Section1 {	page: Section1}Hallo
i had same problem
you need to staticly set the register refresh variable in the iax2.h file and
recompile. (cannot remember exact variable.. will look if you cannot find it.
put this on the external server.
I had to drop mine down to 14 sec, the default is 60.
the problem is that the nat translations seems to only stay for 15 sec. dont
know why.
 
cheers
 
  ----- Original Message ----- 
  From:   Mustafa N.   Deeb 
  To: 'Asterisk Users Mailing List -   Non-Commercial Discussion' 
  Sent: Monday, February 07, 2005 9:45   AM
  Subject: [Asterisk-Users] IAX2 Trunk   Problems with NAT
  

    
Hi, 
  
 
  
I have successfully configured an   IAX trunk between 2 asterisks, calls can go
through both ways without any   problems, NAT in the middle of course (iptables)
  
 
  
Now , leave them for a while   ,   and make a call from the external server , it
doesn’t go   through,
  
 
  
Dial from the internal one,   everything works fine again..
  
 
  
 
  
Now , it is clearly  a   problem in the NAT engine, although IAX shouldn’t have
this   problem
  
 
  
is there something I can do to   prevent asterisk from tearing down the trunk
while it is not   used
  
 
  
or , modify the iptables so that    to allow the incoming UDP connections
  
 
  
 
  
Cheers
  
 
  
h

  
  
---------------------------------
  

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Liaan vd Merwe

2005-Feb-07 02:15 UTC

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[Asterisk-Users] IAX2 Trunk Problems with NAT

@page Section1 {size: 8.5in 11.0in; margin: 1.0in 1.25in 1.0in 1.25in;
}P.MsoNormal {	FONT-SIZE: 12pt; MARGIN: 0in 0in 0pt; FONT-FAMILY: "Times
New Roman"}LI.MsoNormal {	FONT-SIZE: 12pt; MARGIN: 0in 0in 0pt;
FONT-FAMILY: "Times New Roman"}DIV.MsoNormal {	FONT-SIZE: 12pt;
MARGIN: 0in 0in 0pt; FONT-FAMILY: "Times New Roman"}A:link {	COLOR:
blue; TEXT-DECORATION: underline}SPAN.MsoHyperlink {	COLOR: blue;
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mso-style-type: personal-compose}DIV.Section1 {	page: Section1}
IAX_DEFAULT_REG_EXPIRE
that is the value to be changed in iax2.h
  ----- Original Message ----- 
  From:   Mustafa N.   Deeb 
  To: 'Asterisk Users Mailing List -   Non-Commercial Discussion' 
  Sent: Monday, February 07, 2005 9:45   AM
  Subject: [Asterisk-Users] IAX2 Trunk   Problems with NAT
  

    
Hi, 
  
 
  
I have successfully configured an   IAX trunk between 2 asterisks, calls can go
through both ways without any   problems, NAT in the middle of course (iptables)
  
 
  
Now , leave them for a while   ,   and make a call from the external server , it
doesn’t go   through,
  
 
  
Dial from the internal one,   everything works fine again..
  
 
  
 
  
Now , it is clearly  a   problem in the NAT engine, although IAX shouldn’t have
this   problem
  
 
  
is there something I can do to   prevent asterisk from tearing down the trunk
while it is not   used
  
 
  
or , modify the iptables so that    to allow the incoming UDP connections
  
 
  
 
  
Cheers
  
 
  
h

  
  
---------------------------------
  

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Liaan vd Merwe

2005-Feb-07 03:03 UTC

head link

[Asterisk-Users] IAX2 Trunk Problems with NAT

v\:* {	BEHAVIOR: url(#default#VML)}o\:* {	BEHAVIOR: url(#default#VML)}w\:* {
BEHAVIOR: url(#default#VML)}..shape {	BEHAVIOR:
url(#default#VML)}st1\:*{behavior:url(#default#ieooui) }     when you did the
iax show registration, what dit the refresh say?
did it say the time you specified?
  ----- Original Message ----- 
  From:   Mustafa N.   Deeb 
  To: 'Asterisk Users Mailing List -   Non-Commercial Discussion' 
  Sent: Monday, February 07, 2005 11:58   AM
  Subject: RE: [Asterisk-Users] IAX2 Trunk   Problems with NAT
  

    
Hi
  
 
  
 
  
Unfortunately, same   problem
  
 
  
 
  
Cheers
  
 
  
 
      
---------------------------------
  
  
From: asterisk-users-bounces@lists.digium.com  
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Liaan vd Merwe
Sent: Monday, February 07, 2005 11:15   AM
To: Mustafa@palnet.com;   Asterisk Users Mailing List - Non-Commercial  
Discussion
Subject: Re: [Asterisk-Users] IAX2 Trunk   Problems with NAT

  
 
    
 IAX_DEFAULT_REG_EXPIRE

    
that is the value to be changed in   iax2.h

          
----- Original Message -----     

        
From: Mustafa N.     Deeb 

        
To: 'Asterisk Users Mailing List -     Non-Commercial Discussion' 

        
Sent: Monday,     February 07, 2005 9:45 AM

        
Subject:     [Asterisk-Users] IAX2 Trunk Problems with     NAT

        
 

    
Hi, 
    
 
    
I have successfully configured     an IAX trunk between 2 asterisks, calls can
go through both ways without any     problems, NAT in the middle of course
(iptables)
    
 
    
Now , leave them for a while     ,   and make a call from the external server ,
it doesnt go     through,
    
 
    
Dial from the internal one,     everything works fine again..
    
 
    
 
    
Now , it is clearly  a     problem in the NAT engine, although IAX shouldnt have
this     problem
    
 
    
is there something I can do to     prevent asterisk from tearing down the trunk
while it is not     used
    
 
    
or , modify the iptables so that      to allow the incoming UDP connections
    
 
    
 
    
Cheers
    
 
    
h
        
---------------------------------
    
    
_______________________________________________
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Asterisk-Users@lists.digium.com
http://lists.digium.com/mailman/listinfo/asterisk-users
To     UNSUBSCRIBE or update options visit:
       http://lists.digium.com/mailman/listinfo/asterisk-users

  
  
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Liaan vd Merwe

2005-Feb-07 03:17 UTC

head link

[Asterisk-Users] IAX2 Trunk Problems with NAT

v\:* {	BEHAVIOR: url(#default#VML)}o\:* {	BEHAVIOR: url(#default#VML)}w\:* {
BEHAVIOR: url(#default#VML)}..shape {	BEHAVIOR:
url(#default#VML)}st1\:*{behavior:url(#default#ieooui) }     on both servers?
  ----- Original Message ----- 
  From:   Mustafa N.   Deeb 
  To: 'Asterisk Users Mailing List -   Non-Commercial Discussion' 
  Sent: Monday, February 07, 2005 12:12   PM
  Subject: RE: [Asterisk-Users] IAX2 Trunk   Problems with NAT
  

    
Weird
  
 
  
It is empty , even   during a call
  
 
  
pbx*CLI> iax2 show   registry
  
Host                    Username      Perceived               Refresh    State
  
pbx*CLI>
  
 
    
 

  
 
      
---------------------------------
  
  
From: asterisk-users-bounces@lists.digium.com  
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Liaan vd Merwe
Sent: Monday, February 07, 2005 12:03   PM
To: Mustafa@palnet.com;   Asterisk Users Mailing List - Non-Commercial  
Discussion
Subject: Re: [Asterisk-Users] IAX2 Trunk   Problems with NAT

  
 
    
when you did the iax show   registration, what dit the refresh say?

    
did it say the time you   specified?

          
----- Original Message -----     

        
From: Mustafa N.     Deeb 

        
To: 'Asterisk Users Mailing List -     Non-Commercial Discussion' 

        
Sent: Monday,     February 07, 2005 11:58 AM

        
Subject: RE:     [Asterisk-Users] IAX2 Trunk Problems with     NAT

        
 

    
Hi
    
 
    
 
    
Unfortunately, same     problem
    
 
    
 
    
Cheers
    
 
    
 
            
---------------------------------
    
    
From: asterisk-users-bounces@lists.digium.com    
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Liaan vd Merwe
Sent: Monday, February 07, 2005 11:15     AM
To: Mustafa@palnet.com; Asterisk Users Mailing List - Non-Commercial    
Discussion
Subject: Re: [Asterisk-Users] IAX2     Trunk Problems with NAT

    
 
        
 IAX_DEFAULT_REG_EXPIRE

        
that is the value to be changed     in iax2.h

                
----- Original Message -----       

            
From: Mustafa N.       Deeb 

            
To: 'Asterisk Users Mailing List       - Non-Commercial Discussion' 

            
Sent:       Monday, February 07, 2005 9:45 AM

            
Subject:       [Asterisk-Users] IAX2 Trunk Problems with       NAT

            
 

      
Hi,       
      
 
      
I have successfully configured       an IAX trunk between 2 asterisks, calls can
go through both ways without       any problems, NAT in the middle of course    
(iptables)
      
 
      
Now , leave them for a while       ,   and make a call from the external server
, it doesnt go       through,
      
 
      
Dial from the internal one,       everything works fine again..
      
 
      
 
      
Now , it is clearly  a       problem in the NAT engine, although IAX shouldnt
have this       problem
      
 
      
is there something I can do to       prevent asterisk from tearing down the
trunk while it is not       used
      
 
      
or , modify the iptables so       that  to allow the incoming UDP      
connections
      
 
      
 
      
Cheers
      
 
      
h
            
---------------------------------
      
      
_______________________________________________
Asterisk-Users       mailing       list
Asterisk-Users@lists.digium.com
http://lists.digium.com/mailman/listinfo/asterisk-users
To       UNSUBSCRIBE or update options visit:
         http://lists.digium.com/mailman/listinfo/asterisk-users
        
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Liaan vd Merwe

2005-Feb-07 03:27 UTC

head link

[Asterisk-Users] IAX2 Trunk Problems with NAT

v\:* {	BEHAVIOR: url(#default#VML)}o\:* {	BEHAVIOR: url(#default#VML)}w\:* {
BEHAVIOR: url(#default#VML)}..shape {	BEHAVIOR:
url(#default#VML)}st1\:*{behavior:url(#default#ieooui) }
How did you configure the trunk between the 2 servers?
using register => user:pass@external server
or using extension?
 
  ----- Original Message ----- 
  From:   Mustafa N.   Deeb 
  To: 'Asterisk Users Mailing List -   Non-Commercial Discussion' 
  Sent: Monday, February 07, 2005 12:21   PM
  Subject: RE: [Asterisk-Users] IAX2 Trunk   Problems with NAT
  

    
Yes
  
 
  
 
      
---------------------------------
  
  
From: asterisk-users-bounces@lists.digium.com  
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Liaan vd Merwe
Sent: Monday, February 07, 2005 12:17   PM
To: Mustafa@palnet.com;   Asterisk Users Mailing List - Non-Commercial  
Discussion
Subject: Re: [Asterisk-Users] IAX2 Trunk   Problems with NAT

  
 
    
on both   servers?

          
----- Original Message -----     

        
From: Mustafa N.     Deeb 

        
To: 'Asterisk Users Mailing List -     Non-Commercial Discussion' 

        
Sent: Monday,     February 07, 2005 12:12 PM

        
Subject: RE:     [Asterisk-Users] IAX2 Trunk Problems with     NAT

        
 

    
Weird
    
 
    
It is empty , even     during a call
    
 
    
pbx*CLI> iax2     show registry
    
Host                      Username        Perceived                 Refresh     
State
    
pbx*CLI>
    
 
        
 

    
 
            
---------------------------------
    
    
From: asterisk-users-bounces@lists.digium.com    
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Liaan vd Merwe
Sent: Monday, February 07, 2005 12:03     PM
To: Mustafa@palnet.com; Asterisk Users Mailing List - Non-Commercial    
Discussion
Subject: Re: [Asterisk-Users] IAX2     Trunk Problems with NAT

    
 
        
when you did the iax show     registration, what dit the refresh say?

        
did it say the time you     specified?

                
----- Original Message -----       

            
From: Mustafa N.       Deeb 

            
To: 'Asterisk Users Mailing List       - Non-Commercial Discussion' 

            
Sent:       Monday, February 07, 2005 11:58 AM

            
Subject: RE:       [Asterisk-Users] IAX2 Trunk Problems with       NAT

            
 

      
Hi
      
 
      
 
      
Unfortunately,       same problem
      
 
      
 
      
Cheers
      
 
      
 
                  
---------------------------------
      
      
From: asterisk-users-bounces@lists.digium.com      
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Liaan vd      
Merwe
Sent: Monday,       February 07, 2005 11:15 AM
To: Mustafa@palnet.com; Asterisk Users Mailing List - Non-Commercial      
Discussion
Subject: Re: [Asterisk-Users] IAX2       Trunk Problems with NAT

      
 
            
 IAX_DEFAULT_REG_EXPIRE

            
that is the value to be       changed in iax2.h

                      
----- Original Message -----         

                
From: Mustafa N.         Deeb 

                
To: 'Asterisk Users Mailing         List - Non-Commercial Discussion' 

                
Sent:         Monday, February 07, 2005 9:45 AM

                
Subject:         [Asterisk-Users] IAX2 Trunk Problems with         NAT

                
 

        
Hi,         
        
 
        
I have successfully         configured an IAX trunk between 2 asterisks, calls
can go through both         ways without any problems, NAT in the middle of
course         (iptables)
        
 
        
Now , leave them for a while         ,   and make a call from the external
server , it doesnt go         through,
        
 
        
Dial from the internal one,         everything works fine again..
        
 
        
 
        
Now , it is clearly  a         problem in the NAT engine, although IAX shouldnt
have this         problem
        
 
        
is there something I can do         to prevent asterisk from tearing down the
trunk while it is not         used
        
 
        
or , modify the iptables so         that  to allow the incoming UDP        
connections
        
 
        
 
        
Cheers
        
 
        
h
                
---------------------------------
        
        
_______________________________________________
Asterisk-Users         mailing         list
Asterisk-Users@lists.digium.com
http://lists.digium.com/mailman/listinfo/asterisk-users
To         UNSUBSCRIBE or update options visit:
           http://lists.digium.com/mailman/listinfo/asterisk-users
            
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---------------------------------
      
      
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To       UNSUBSCRIBE or update options visit:
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Liaan vd Merwe

2005-Feb-07 05:12 UTC

head link

[Asterisk-Users] IAX2 Trunk Problems with NAT

v\:* {	BEHAVIOR: url(#default#VML)}o\:* {	BEHAVIOR: url(#default#VML)}w\:* {
BEHAVIOR: url(#default#VML)}..shape {	BEHAVIOR:
url(#default#VML)}st1\:*{behavior:url(#default#ieooui) }     ok.
your options are:
setup publishing rule on your IPtables to allow access to you internal *  from
external *
or:
register to the external server using the internalserver-peer username:pass
then you can, in your extension.conf, call dial(iax2/internal-peer)
 
let me know if you need some help with this
regards
liaan
 
  ----- Original Message ----- 
  From:   Mustafa N.   Deeb 
  To: 'Asterisk Users Mailing List -   Non-Commercial Discussion' 
  Sent: Monday, February 07, 2005 1:01   PM
  Subject: RE: [Asterisk-Users] IAX2 Trunk   Problems with NAT
  

    
No ,   
  
Im using the other   type configuration since the NAT server IP doesnt  
change..
  
 
  
On the External   Server
  
 
  
[internalserver-peer]
  
username=external-user
  
type=peer
  
trunk=yes
  
secret=password
  
host={external NAT IP   ADDRESS}
  
 
  
[internal-user]
  
type=user
  
trunk=yes
  
secret=password
  
context=from-internal
  
 
  
 
  
on the internal   server
  
 
  
[external-peer]
  
username=internal-user
  
type=peer
  
trunk=yes
  
secret=password
  
host={external IP   ADDRESS}
  
 
  
[external-user]
  
type=user
  
trunk=yes
  
secret=password
  
context=from-internal
    
---------------------------------
  
    
From:   asterisk-users-bounces@lists.digium.com  
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Liaan vd Merwe
Sent: Monday, February 07, 2005 12:28   PM
To: Mustafa@palnet.com; Asterisk Users Mailing List - Non-Commercial  
Discussion
Subject: Re: [Asterisk-Users] IAX2 Trunk   Problems with NAT

  
 
    
 

    
How did you configure the trunk   between the 2 servers?

    
using register =>   user:pass@external server

    
or using   extension?

    
 

          
----- Original Message -----     

        
From: Mustafa N.     Deeb 

        
To: 'Asterisk Users Mailing List -     Non-Commercial Discussion' 

        
Sent: Monday,     February 07, 2005 12:21 PM

        
Subject: RE:     [Asterisk-Users] IAX2 Trunk Problems with     NAT

        
 

    
Yes
    
 
    
 
            
---------------------------------
    
    
From: asterisk-users-bounces@lists.digium.com    
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Liaan vd Merwe
Sent: Monday, February 07, 2005 12:17     PM
To: Mustafa@palnet.com; Asterisk Users Mailing List - Non-Commercial    
Discussion
Subject: Re: [Asterisk-Users] IAX2     Trunk Problems with NAT

    
 
        
on both     servers?

                
----- Original Message -----       

            
From: Mustafa N.       Deeb 

            
To: 'Asterisk Users Mailing List       - Non-Commercial Discussion' 

            
Sent:       Monday, February 07, 2005 12:12 PM

            
Subject: RE:       [Asterisk-Users] IAX2 Trunk Problems with       NAT

            
 

      
Weird
      
 
      
It is empty ,       even during a call
      
 
      
pbx*CLI> iax2       show registry
      
Host                        Username          Perceived                  
Refresh  State
      
pbx*CLI>
      
 
            
 

      
 
                  
---------------------------------
      
      
From: asterisk-users-bounces@lists.digium.com      
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Liaan vd      
Merwe
Sent: Monday,       February 07, 2005 12:03 PM
To: Mustafa@palnet.com; Asterisk Users Mailing List - Non-Commercial      
Discussion
Subject: Re: [Asterisk-Users] IAX2       Trunk Problems with NAT

      
 

  
  
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Miguel Ruiz Velasco Sobrino

2005-Feb-07 12:14 UTC

head link

[Asterisk-Users] Re: IAX2 Trunk Problems with NAT

Simple! first: return the iax.h to it's original state because it's a
config issue, not a
code one.

In the internal server, you need to put in the relevant section a host directive
with the
name or IP of the external server AND a register under the [general] section of
the
iax.conf

In the external server, in the definition you need to put host=dynamic.
Then hoy need to  dial with the definition section name

***internal:
*iax.conf
[general]
register => user:pw@external-hostname
[iax-external]
host=external-hostname

*extensions.conf
 ... Dial (IAX2/iax-external/phonenumber)

***external:
*iax.conf
[iax-internal]
host=dynamic

*extensions.conf
... Dial (IAX2/iax-internal/phonenumber)

This also addresses the problem of someone having two iax2/udp streams, one of
each call,
even with trunking enabled.

> From: Mustafa N. Deeb <mailto:mustafa@palnet.com>  
> 
> To: 'Asterisk Users Mailing List -
<mailto:asterisk-users@lists.digium.com>
> Non-Commercial Discussion' 
> 
> Sent: Monday, February 07, 2005 9:45 AM
> 
> Subject: [Asterisk-Users] 
> 
>  
> 
> Hi, 
> 
> I have successfully configured an IAX trunk between 2 asterisks, calls can
> go through both ways without any problems, NAT in the middle of course
> (iptables)
> 
> Now , leave them for a while ,   and make a call from the external server ,
> it doesnt go through, 
> 
> Dial from the internal one, everything works fine again..
>  
> 
> Now , it is clearly  a problem in the NAT engine, although IAX shouldnt
> have this problem    
> 
> is there something I can do to prevent asterisk from tearing down the trunk
> while it is not used
> 
> or , modify the iptables so that  to allow the incoming UDP connections
> 
> Cheers

====Miguel Ruiz Velasco

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