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uk.telecom.voip (UK VOIP) (uk.telecom.voip) Discussion of topics relevant to packet based voice technologies including Voice over IP (VoIP), Fax over IP (FoIP), Voice over Frame Relay (VoFR), Voice over Broadband (VoB) and Voice on the Net (VoN) as well as service providers, hardware and software for use with these technologies. Advertising is not allowed.

SIP ALG



 
 
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  #1  
Old January 30th 09, 10:13 AM posted to uk.telecom.voip
Jono
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Posts: 1,539
Default SIP ALG

Hello,

Am having a right old time with one-way audio on this router with a
remote Asterisk extension.

I cannot find, after much much Googling, whether it has SIP ALG enabled
or not.

The router is branded a dlink dsl-g624m Wireless 108G MIMI ADSL2/2+
Router "Airplus Xtreme G".

Querying the router via telnet, I see the following info:

Global System Configuration:

Vendor: Conexant
URL: http://www.conexant.com/

Hardware ver: Argon 4x2 Eval BSP v1.0 / Argon 4x1 CSP v1.0 (ISOS 9.0)
Software ver: DSL-G624M.UK.B02T09.20051212.

So, is anyone familiar with this router? Is there a SIP ALG
(unreferenced in the web interface)? If there is, what's the magic
method to disable it?

Cheers.


  #2  
Old January 30th 09, 02:56 PM posted to uk.telecom.voip
alexd
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Posts: 1,765
Default SIP ALG

Jono wrote:

I cannot find, after much much Googling, whether it has SIP ALG enabled
or not.


In the absence of a definite answer either way, you'd need a packet capture
from each side. Look at the difference between the captures, especially in
the SIP headers.

So, is anyone familiar with this router? Is there a SIP ALG
(unreferenced in the web interface)? If there is, what's the magic
method to disable it?


Sounds like it's running linux, does 'netstat -an' yield anything useful?

--
http://ale.cx/ (AIM:troffasky) )
14:53:03 up 56 days, 17:05, 3 users, load average: 0.06, 0.06, 0.01
Sexy ladies, and nasty boys, all freaky freakin', to the robot noise

  #3  
Old January 30th 09, 03:14 PM posted to uk.telecom.voip
Jono
external usenet poster
 
Posts: 1,539
Default SIP ALG

After serious thinking alexd wrote :
Jono wrote:

I cannot find, after much much Googling, whether it has SIP ALG enabled
or not.


In the absence of a definite answer either way, you'd need a packet capture
from each side. Look at the difference between the captures, especially in
the SIP headers.


All a bit too remote for me to deal with easily.


So, is anyone familiar with this router? Is there a SIP ALG
(unreferenced in the web interface)? If there is, what's the magic
method to disable it?


Sounds like it's running linux, does 'netstat -an' yield anything useful?


No, sadly.


  #4  
Old January 30th 09, 08:13 PM posted to uk.telecom.voip
alexd
external usenet poster
 
Posts: 1,765
Default SIP ALG

Jono wrote:

After serious thinking alexd wrote :


All a bit too remote for me to deal with easily.


The capture at the Asterisk end would be easy. Could you perhaps simulate
the remote end locally with a handset running identical firmware?

Sounds like it's running linux, does 'netstat -an' yield anything useful?


No, sadly.


cat /proc/net/udp?

--
http://ale.cx/ (AIM:troffasky) )
20:10:04 up 56 days, 22:22, 2 users, load average: 0.04, 0.05, 0.00
Sexy ladies, and nasty boys, all freaky freakin', to the robot noise

  #5  
Old January 30th 09, 08:17 PM posted to uk.telecom.voip
alexd
external usenet poster
 
Posts: 1,765
Default SIP ALG

alexd wrote:

cat /proc/net/udp?


You're looking for the number '13C4', by the way.

--
http://ale.cx/ (AIM:troffasky) )
20:16:21 up 56 days, 22:28, 2 users, load average: 0.16, 0.07, 0.01
Sexy ladies, and nasty boys, all freaky freakin', to the robot noise

 




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