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

Oh yeah. I'm not saying it ISN'T the firewall. I just am used to people
calling me asking why the firewall is blocking something because they
have no concept so I enjoyed seeing this thread. No. I don't classify
most of the folks on this distro as end users. Reading up on RTP now.....

-Hammer-

On 06/22/2011 03:56 PM, JB Poplawski wrote:
> 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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Received on Wed Jun 22 2011 - 15:59:58 ART