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

Getting the IP addresses of the two phones would be good like somebody
said...you can then request the firewall guys take a look at the logs and
see if the UDP/RTP traffic from B --> A is being dropped.

On Wed, Jun 22, 2011 at 4:57 PM, Nish Vamadevan <ipnish_at_gmail.com> wrote:

> As Joe said, since it is a subset of TCP, wouldn't a firewall rule allowing
> UDP will allow RTP traffic?
>
> Regards,
> Nish
>
> http://twitter.com/nish
>
> -----Original Message-----
> From: Joe Astorino <joeastorino1982_at_gmail.com>
> Sender: nobody_at_groupstudy.com
> Date: Wed, 22 Jun 2011 16:54:07
> To: -Hammer-<bhmccie_at_gmail.com>
> Reply-To: Joe Astorino <joeastorino1982_at_gmail.com>
> Cc: <ccielab_at_groupstudy.com>
> Subject: Re: OT : user in our Building can't heare the user in the other
> Building
>
> Voice stream is RTP which is carried inside UDP.
>
> On Wed, Jun 22, 2011 at 4:50 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
> > >>>
> > >>>
> > >>> Blogs and organic groups at http://www.ccie.net
> > >>>
> > >>>
> _______________________________________________________________________
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> > >>>
> > >>>
> > >>>
> > >>>
> > >>
> > >> --
> > >> Regards,
> > >>
> > >> Joe Astorino
> > >> CCIE #24347
> > >> Blog: http://astorinonetworks.com
> > >>
> > >> "He not busy being born is busy dying" - Dylan
> > >>
> > >>
> > >> Blogs and organic groups at http://www.ccie.net
> > >>
> > >>
> _______________________________________________________________________
> > >> Subscription information may be found at:
> > >> http://www.groupstudy.com/list/CCIELab.html
> > >>
> > >
> > > Blogs and organic groups at http://www.ccie.net
> > >
> > > _______________________________________________________________________
> > > Subscription information may be found at:
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> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
> > _______________________________________________________________________
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> >
> >
> >
> >
> >
> >
> >
> >
>
>
> --
> Regards,
>
> Joe Astorino
> CCIE #24347
> Blog: http://astorinonetworks.com
>
> "He not busy being born is busy dying" - Dylan
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>
>
>
>

-- 
Regards,
Joe Astorino
CCIE #24347
Blog: http://astorinonetworks.com
"He not busy being born is busy dying" - Dylan
Blogs and organic groups at http://www.ccie.net