Re: OT : user in our Building can't heare the user in the other

Good call, I should step back and also mention routing (reachability)
could be an issue.

Could be a fixup issue as well. I've seen those commands break/fix things.
http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a00801fc74a.shtml

Blaming the firewall....Take the firewall out and I bet it works... :)

On Wed, Jun 22, 2011 at 3:50 PM, -Hammer- <bhmccie_at_gmail.com> wrote:
> OK. Being a firewall guy I love when people blame the firewall. I'm not
> saying it's not the firewall but isn't RTP a TCP transport layer
> protocol? I'm not a voice guy so please don't bash me too much. Do the
> phones make independent connections (like a send and receive channel) to
> each other? Which part is stateless?
>
> -Hammer-
>
>
>
> On 06/22/2011 03:28 PM, JB Poplawski wrote:
>> Determine the IP addresses of the phones at each site (assuming the
>> whole subnet needs to be opened up).
>> Verify UDP from their side to your side is valid. If you can't hear
>> the other building, the RTP stream is being blocked coming your way.
>>
>> HTH,
>> JB
>>
>> On Wed, Jun 22, 2011 at 3:17 PM, Joe Astorino<joeastorino1982_at_gmail.com> wrote:
>>
>>> Sounds like a firewall issue. I would investigate that the firewall is
>>> allowing the proper RTP voice packets from building2 back to building1 like
>>> JB said. Now, the political implications of said task might be harder than
>>> it sounds depending on your relationships with other teams and who runs the
>>> firewall lol
>>>
>>> On Wed, Jun 22, 2011 at 4:07 PM, wael Ahmed<wsadani_at_gmail.com> wrote:
>>>
>>>
>>>> Hi GS
>>>> i have a problem here and i need your sugession
>>>> this is the senario
>>>>
>>>> iptuser(our Building)--------access
>>>>
>>>> switch1----corswitche1----------------firewall--------coreswitch2---------acess
>>>> switch2------ iptuser(otherbuilding)
>>>>
>>>>
>>>> The unified Communication conected to coreswitch1
>>>>
>>>> coreswitch1 connecetd to firewall by Fiber it is end 10.20.91.100 the
>>>> firewall end 10.20.91.105
>>>> My responsability till only coreswitch1 and there is seperated team to the
>>>> firewall coreswitch2
>>>>
>>>> ipt user(our Building) can heare each other
>>>> ipt user (other Building ) can heare eah other
>>>> ipt user (other Building ) can heare ipt(our Building)
>>>> ipt user (our Building) can't heare iptuser(othe Building)
>>>>
>>>>
>>>>
>>>> voice vlans are in access switch 1 and coreswitch 1 vlan 230
>>>> voive vlan are in acce switch 2 and coreswitch2 vlan 111
>>>> any idea
>>>> thanks
>>>>
>>>>
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>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>> --
>>> Regards,
>>>
>>> Joe Astorino
>>> CCIE #24347
>>> Blog: http://astorinonetworks.com
>>>
>>> "He not busy being born is busy dying" - Dylan
>>>
>>>
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>>
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Received on Wed Jun 22 2011 - 15:56:32 ART