Re: [Ekiga-devel-list] USB network autodetection on Openmoko

[Eugen Dedu <Eugen Dedu pu-pm univ-fcomte fr>]

Luca Capello wrote:
> Hi there!
>
> My Openmoko GTA02 Neo FreeRunner is connected to my laptop thanks to its
> USB port following the instructions at
>
>   http://wiki.openmoko.org/wiki/USB_Networking
>
> Basically, every time the USB cable is plugged in:
> =====
> iptables -t nat -s 192.168.0.202 -A POSTROUTING -j MASQUERADE
> iptables -t nat -s 192.168.0.202 -A PREROUTING  -j DNAT \
>     -d 192.168.0.200 -p udp --dport 53 \
>     --to-destination `grep -m 1 nameserver /etc/resolv.conf | cut -d ' ' -f 2`
> iptables -t nat -s 192.168.0.202 -A PREROUTING  -j DNAT \
>     -d 192.168.0.200 -p tcp --dport 53 \
>     --to-destination `grep -m 1 nameserver /etc/resolv.conf | cut -d ' ' -f 2`
> iptables -P FORWARD ACCEPT
> echo 1 >/proc/sys/net/ipv4/ip_forward
> =====
>
> At university my laptop is configured with a public IP address, but
> every time I start Ekiga on my Openmoko Neo FreeRunner I get the
> "network autodetection error" window, which tells me to check
>
>   http://wiki.ekiga.org/index.php/Enable_port_forwarding_manually
>
> I do not remember to have experienced the same problem at home, where I
> am behind an ADSL router (managed through OpenWrt), thus this sounds to
> me quite strange.
>
> Indeed, if I try to call the echo test when I am at university, I did
> not receive any sound, while at home I can hear the echo test voice at
> least until the segfault I reported at
>
>   http://thread.gmane.org/gmane.comp.gnome.apps.gnomemeeting.devel/5620/focus=5678

So it seems the problem is not between USB and laptop, but between 
laptop and Internet.

> Is this a bug in my configuration or in Ekiga?

Can ekiga on your *laptop* connect successfully at home and at university?

--
Eugen