Re: [Ekiga-list] Ekiga on Ubuntu using DSL 302G D-Link modem

[mat101 <matthews632 netspace net au>]

mat101 wrote:

ael wrote:

On Wed, Feb 24, 2010 at 05:56:59AM -0800, mat101 wrote:
  

I have a DSL 302G D-link modem and I've been trying to get Ekiga voip working
on ubuntu 8.10 without any luck, and I was wondering whether anyone might be
able to solve this problem.

I have tried setting NAT Rule Entries for various ip numbers I thought might
be the fixed ip of my router (tried 10.1.1.1, 10.1.1.10, etc.) and included
the requisite Ekiga ports in the NAT Rule Entries (3478-3479, 5000-5100,
1720), but still no sound or video.
    

Not quite sure what you mean above: are you trying to follow the
Ekiga-behind-a-NAT-router instructions on the wiki? If you don't know
the ip address of your router, I don't understand how you can reach it to change
the settings. 

  

Irrespective of the NAT Rule Entries I've used, running Ekiga's druid and
clicking 'Detect NAT Type' always results in the detection of a 'Symmetric
NAT' and Ekiga's suggestion to change it to a 'Cone NAT'. I've never been
able to obtain a Cone NAT.
    

That means that your trigger rule (if you have one) isn't firing. The whole
point of the trigger is to open a small local "CONE" for the ekiga traffic.
IIRC ekiga will call this something like a "restricted CONE".

  

I attempted to get my router ip number by running cmd.exe/ipconfig on XP
(another partition on the same computer system) and obtained the following
output:

Ethernet adapter Local Area Connection:

       Connection-specific DNS Suffix  . :
       IP Address. . . . . . . . . . . . : 10.1.1.10
       Subnet Mask . . . . . . . . . . . : 255.0.0.0
       Default Gateway . . . . . . . . . : 10.1.1.1
    

Your router is *almost* certainly the gateway. What happens if you
ping that address? Do the router LEDS flash? Can you point a browser
there and see anything?

Who set up your router: not you? 

  

Some sites claim the above ipconfig output indicates my router ip number is
10.1.1.1, and yet other sites claim it is 10.1.1.10. Some have even
suggested my router ip number should be 192.168.15.1. This is all very
confusing.
    

Indeed. What about using wireshark to find out what is going on?
Or just type "route"? (On ubuntu, maybe that is sudo route?)

ael

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Thanks for the response ael.

My unsuccessful efforts to create NAT Rule Entries for the modem was my feeble attempt to follow the Ekiga-behind-a-NAT-router instructions on the wiki. These rules were manipulated by entering the modem's Admin. Panel through a browser via 'http://10.1.1.1'.

The cmd.exe/ipconfig output on XP showed a 'Gateway Address' and 'IP Address' (see above). When I ping the 'Gateway Address' 10.1.1.1 in a terminal window on ubuntu, the modem lights do flash, and the output in the terminal window indicates an interaction with the modem. The modem lights also flash when I ping the 'IP Address' of 10.1.1.10. Trying to ping other ip numbers results in 'Destination Host Unreachable'.

If I point my browser to the Gateway Address of 10.1.1.1. I get the modem's Admin. Panel appearing.
If I point my browser to the IP Address of 10.1.1.10 I get a 'Failed to Connect' browser response.

Your question: "Who set up your router: not you?"
Answer: Yes, I (clumsily) set up the router. Entering http://10.1.1.1 in a browser allows me to enter the modem's Admin. Panel and manipulate settings. I had to place the modem in 'bridging mode' in order to get access to the outside world. My computer is the only computer connected to the modem.

The following output is produced when I type 'route' in a terminal window on ubuntu:

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
link-local      *               255.255.0.0     U     1000   0        0 eth0
10.0.0.0        *               255.0.0.0       U     1      0        0 eth0
default         10.1.1.1        0.0.0.0         UG    0      0        0 eth0


I hope the above brings me closer to finding a solution.

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I should clarify one point: When I wrote "Trying to ping other ip numbers results in 'Destination Host Unreachable'" I meant that I am unable to ping other ip numbers within the range 10.1.1.* - I can successfully ping world-reachable ip numbers.

Additionally, when I use an alternative voip program on my ubuntu system with this modem (e.g. sk*pe), I have no problem seeing and hearing the other person. This suggests that my modem is functioning and capable of conducting a voip interaction.

But I prefer to use Ekiga on and not this other program.

Help!