EX90 to connect legacy Home Router ( DSL Fritzbox 7390)

[rasimyigit]

Hi,

My Cisco Ex90 is connected to DSL home connection. I want to call to an IP Endpoint with reachable as IP like Cisco C20or EX90. I set the EX90 in H323 Setting -->NAT the Public IP of my Public IP Address and he has also an internal IP address. I can make calls to outside IP but unfortunately not to take call from external. In the home router I can nothing set like NAT setting or whatever. What can I still make the Ex90 devices to legacy Home DSL connections without problems IP to IP connection.

Thank you

[Tomonori Taniguchi · Accepted solution]

Oh ok, have you managed to receive the call from public network side now?

> Please note, if you modify default port configuration to static,

> Endpoint must restart first otherwise Endpoint still allocate port  dynamically.

This is quite easy to forget to do (^^).

[Tomonori Taniguchi]

Need syslog from MXP Endpoint to understand where call process is hanging and not able to proceed after alerting.

You should check information in "Connect" message which contain contact IP address and port information for H.245 negotiation under " h245Address ipAddress".

===========================================================

value H323-UserInformation ::=

{

h323-uu-pdu

{

   h323-message-body connect :

   {

     protocolIdentifier { 0 0 8 2250 0 5 },

     h245Address ipAddress :

     {

       ip 'AC100177'H, <-----

       port 5556 <-----

     },

     destinationInfo

     {

===========================================================

You may need to check this information in both Endpoint side.

Please note, if you modify default port configuration to static, Endpoint must restart first otherwise Endpoint still allocate port dynamically.

Please remember syslog may contain your home network information.

If need for detail troubleshooting without publishing such log file on public community site, I’d recommend to open the TAC case.

[Martin Koch]

First of all the FritzBox is known to be quite feature rich, port forwards and UPNP (experimental supported

by the ex90 as well if I see it right) are possible (the link is in German, but that's just to proof that its possible, sure

if you got the FritxBox via an ISP, they might run a restricted firmware, ... ):

http://www.avm.de/de/Service/Service-Portale/Service-Portal/News_und_Ausblick/43_portfreigaben_eingehende_Verb.php

Besides that, ip dialing is so retro :-) I would recommend that you get yourself a VCS-E which is

exactly designed for way you want to do: firewall traversal!

In addition you get proper uri dialing, h323/sip and ipv4/ipv6 interworking, call control and much more.

If you do not want to operate your own vcs-e there are also companies providing you with vcs-e

registration services.