Hi,
Thank you for your answers. It is well appreciated. I tried the
configuration settings suggested by Edson but with no results. The pacphone
works beautifully. I also tried the other solutions proposed by Stewart
Nelson and they work. But I need more flexibility.
It seems the pacphone makes use of the H.460 protocols (does it really?).
I would like to know if the gnugk gatekeeper enables calls from public
endpoints to NATed ones only if those NATed endpoints support the H.460
protocols (or some other type of NAT/Firewall traversal).
PacPhone does support H.460 however it does not utilise H460.18/19 for NAT traversal with GNUGK (since GnuGK does not support it) It uses GnuGK own built in NAT Traversal technique. GnuGk can automatically detect if an endpoint, when it registers, is behind a NAT and then advise the endpoint so it can configure itself to traverse the NAT, The method is not "standard" but in IMHO its superior in may way to the ITU standard.
The only H.460 standard PacPhone supports is H460.7 Digit Maps. This allows PacPhone to emulate a tradition phone. ie. local numbers only requiring 7 or 8 digits, long distance '0' + number, International '00' + country code + number...(see 'locale settings' in the getting started guide) All the numbers are rewritten by PacPhone to full E.164 for routing by GnuGK.
I am in the process of finishing off full H.460 framework support for OpenH323 (released under MPL) so a whole lot of new and exciting features like H.460.18/19 can be included in the future...
The H460.18/19 was only introduced about 8 months ago and very few H.323 equipment actually support it at the moment so unless you are using GnuGK - GnuGK or PacPhone - GnuGK, NAT traversal for incoming calls is a major problem and you will need to do as Stewart Nelson suggests and port forward.
One other question: I would like to understand what the authors of the
manual meant by saying that in order for the proxy to work, the gatekeeper
must have direct connection to both networks of the caller and callee (page
25, section 4.2.5). I would like to understand the exact meaning of direct
connection in that context.
It means that GnuGK must be directly connected to the Internet and to the local LAN. There can not be any NAT traversal between the Endpoints and the Gatekeeper.
Simon
Thank you.
Jean-Marc.
-----Message d'origine-----
De : openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx
[mailto:openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx] De la part de
openh323gk-users-request@xxxxxxxxxxxxxxxxxxxxx
Envoyé : 31 mars 2006 23:31
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Today's Topics:
1. Gatekeeper interworking with Nated endpoints (JM Hyppolite)
2. RE: Gatekeeper interworking with Nated endpoints (Edson)
3. RE: Gatekeeper interworking with Nated endpoints (Stewart Nelson)
--__--__--
Message: 1
From: "JM Hyppolite" <jm.hyppolite@xxxxxxxxxxxx>
To: <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 31 Mar 2006 10:45:08 -0500
Subject: Gatekeeper interworking with Nated endpoints
Reply-To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx
This is a multi-part message in MIME format.
------=_NextPart_000_0004_01C654B0.2DE00070
Content-Type: text/plain;
charset="us-ascii"
Content-Transfer-Encoding: 7bit
Hi,
It's possible to make calls from nated endpoints to endpoints with
public IP addresses. But how can I get endpoints with public IP addresses to
call endpoints behind a NAT box?
Thank you for your help.
------=_NextPart_000_0004_01C654B0.2DE00070
Content-Type: text/html;
charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns=3D"http://www.w3.org/TR/REC-html40">
Hi,
It?s possible = to make calls from nated endpoints to endpoints with public IP addresses. But how can I get = endpoints with public IP addresses to call endpoints behind a NAT box? =
Thank you for your = help.
------=_NextPart_000_0004_01C654B0.2DE00070--
--__--__--
Message: 2
From: "Edson" <4lists@xxxxxxxxx>
To: <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx>
Subject: RE: Gatekeeper interworking with Nated endpoints
Date: Fri, 31 Mar 2006 13:08:51 -0300
Reply-To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx
This is a multi-part message in MIME format.
------=_NextPart_000_00CA_01C654C4.4290D8F0
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Use something like:
=20
[Proxy]
Enable=3D1
InternalNetwork=3DX.X.X.X/xx
T120PortRange=3D40000-40000
RTPPortRange=3D50000-51000
ProxyForNAT=3D1
=20
Or whatever it takes to Your installation=85 Details on the manual=85. =
;)
=20
Edson.
=20
_____ =20
From: openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx
[mailto:openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of JM
Hyppolite
Sent: sexta-feira, 31 de mar=E7o de 2006 12:45
To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx
Subject: Gatekeeper interworking with Nated endpoints
=20
Hi,
It=92s possible to make calls from nated endpoints to endpoints =
with
public IP addresses. But how can I get endpoints with public IP =
addresses to
call endpoints behind a NAT box?=20
=20
Thank you for your help.
=20
=20
------=_NextPart_000_00CA_01C654C4.4290D8F0
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Diso-8859-1">
xmlns:o=3D"urn:schemas-microsoft-com:office:office" = xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns=3D"http://www.w3.org/TR/REC-html40">
Use something = like:
[Proxy]
=
Enable=3D1<= /p>
InternalNetwork=3DX.X.X.X/xx
T120PortRange=3D40000-40000
RTPPortRange=3D50000-51000
ProxyForNAT=3D1
Or whatever it = takes to Your installation? Details on the manual?. = ;)
=
Edson.=
=
From: openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx [mailto:openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of JM Hyppolite
Sent: sexta-feira, 31 de março de 2006 12:45
To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx
Subject: = Gatekeeper interworking with Nated endpoints
Hi,
It?s possible = to make calls from nated endpoints to endpoints with public IP addresses. But = how can I get endpoints with public IP addresses to call endpoints behind a NAT = box?
Thank you for your = help.
------=_NextPart_000_00CA_01C654C4.4290D8F0--
--__--__--
Message: 3
From: "Stewart Nelson" <sn@xxxxxxxxxxx>
To: <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx>
Subject: RE: Gatekeeper interworking with Nated endpoints
Date: Fri, 31 Mar 2006 08:09:15 -0800
Organization: SC Group
Reply-To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx
Will any of these work for you?
1. Simon Horne's softphone with built-in NAT traversal.
http://www.pacphone.com/
2. On the NAT, forward TCP port 1720 to your endpoint.
3. Put another GK on the private LAN.
If not, please specify your requirements.
Softphones? ATAs? Hardphones?
Do you have administrative control of the NAT(s)?
How many endpoints behind a given NAT?
Approximate size of system?
--Stewart
________________________________________
From: JM Hyppolite [mailto:jm.hyppolite@xxxxxxxxxxxx]=20
Sent: Friday, March 31, 2006 7:45 AM
To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx
Subject: Gatekeeper interworking with Nated endpoints
Hi,
=A0=A0=A0=A0 It=92s possible to make calls from nated endpoints to =
endpoints with
public IP addresses. But how can I get endpoints with public IP =
addresses to
call endpoints behind a NAT box?=20
Thank you for your help.
--__--__--
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