i2050 softphone accessing BCM behind NATing firewall

i2050 softphone accessing BCM behind NATing firewall

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Subject Author Date
i2050 softphone accessing BCM behind NATing firewall pgartner 09-27-2007
Posted by pgartner on September 27, 2007, 7:51 pm
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I'm trying to configure my Juniper firewall to allow some of our
employees in the feild to use the i2050 softphone on thier laptop

I have setup rules on my firewall to allow ports 7000, 28000-28255,
51000-51200 to point to the BCM's internal interface

The SW connects, we can dial out, and they can hear the caller, but
the caller can hear the softphone users

I'm thought maybe i'm missing a port, so i opened everything for a
test, same results.

i tried the laptop on the lan (reconfig to point to the internal
[private] IP) and it works fine

is NAT causing me problems?

anybody have any ideas?


Paul


Pure Networks
Posted by Someone on September 28, 2007, 6:14 pm
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Most likely. VoIP will have addressing and port information used in the call
setup in the signaling headers.
> I'm trying to configure my Juniper firewall to allow some of our
> employees in the feild to use the i2050 softphone on thier laptop
>
> I have setup rules on my firewall to allow ports 7000, 28000-28255,
> 51000-51200 to point to the BCM's internal interface
>
> The SW connects, we can dial out, and they can hear the caller, but
> the caller can hear the softphone users
>
> I'm thought maybe i'm missing a port, so i opened everything for a
> test, same results.
>
> i tried the laptop on the lan (reconfig to point to the internal
> [private] IP) and it works fine
>
> is NAT causing me problems?
>
> anybody have any ideas?
>
>
> Paul
>



Posted by John on October 3, 2007, 11:26 am
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I had similar issues and had to turn on tunnel to tunnel access on our
Contivity specifically I think it was End user to End User.


Tunnel to Tunnel Traffic

Allow End User to End User
Allow End User to Branch Office
Allow Branch Office to Branch Office



Is there a similar setting on your jupiter firewall?




> Most likely. VoIP will have addressing and port information used in the
> call setup in the signaling headers.
>> I'm trying to configure my Juniper firewall to allow some of our
>> employees in the feild to use the i2050 softphone on thier laptop
>>
>> I have setup rules on my firewall to allow ports 7000, 28000-28255,
>> 51000-51200 to point to the BCM's internal interface
>>
>> The SW connects, we can dial out, and they can hear the caller, but
>> the caller can hear the softphone users
>>
>> I'm thought maybe i'm missing a port, so i opened everything for a
>> test, same results.
>>
>> i tried the laptop on the lan (reconfig to point to the internal
>> [private] IP) and it works fine
>>
>> is NAT causing me problems?
>>
>> anybody have any ideas?
>>
>>
>> Paul
>>
>
>



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other useful resources:
The Federal Communications Commission (FCC)
Telecommunications Industry Association
Electronic and Software Security Products and Services
International Telecommunication Union

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