Voice and Video GSoC Project

Diego Costantini diego.costantini at gmail.com
Wed May 28 11:31:36 EDT 2008

I am using an Ubuntu virtual machine with VirtualBox inside another Ubuntu
host machine.
I found out that ping from the virtual machine is a well known unsolved
problem, in fact I can update the virtual machine, connect with the browser
and so on, but ping is not working.
Monotone is not an ICMP packet with no port, thus it's supposed to work, but
actually what I capture with wireshark is a successful DNS request that
resolved correctly the IP, but then the following TCP monotone request to
the correct IP, port 4691, returns a ICMP destination unreachable from a
strange IP (, which I suppose has something to do with virtual
machine since I have no such 192.168.42.* IP on host or guest machine.

I will ask if network admins closed that port (I doubt), then I'll try to do
it from the host machine (that was the reason why I installed a test Ubuntu
to keep it clean... :/ )

Thank you for the help

-----Original Message-----
From: Ethan Blanton [mailto:elb at pidgin.im] 
Sent: Mittwoch, 28. Mai 2008 16:40
To: Diego Costantini
Cc: 'devel'
Subject: Re: Voice and Video GSoC Project

Diego Costantini spake unto us the following wisdom:
> Thank you for the hint, I tried but I get this error:
> test at test-desktop:~/pidgin$ sudo mtn -d /home/test/test.mtn pull 
> --set-default pidgin.im "im.pidgin.*"
> mtn: setting default server to pidgin.im
> mtn: setting default branch include pattern to 'im.pidgin.*'
> mtn: setting default branch exclude pattern to ''
> mtn: doing anonymous pull; use -kKEYNAME if you need authentication
> mtn: connecting to pidgin.im
> mtn: network error: failed to connect: Connection refused

Do you have a firewall of some sort?  I can connect to the Pidgin monotone
server without trouble.

> and then I was going to use:
> mtn -d $DATABASE co -b im.pidgin.soc.2008.vv $WORKINGDIR
> have I done something wrong? Pidgin.im is not answering pings.

Pidgin.im does not answer pings, that is normal.  Can you get to the web
server?  If you can reach the web server, but not monotone, it is almost
certainly a firewall problem on your end.


The laws that forbid the carrying of arms are laws [that have no remedy for
evils].  They disarm only those who are neither inclined nor determined to
commit crimes.
		-- Cesare Beccaria, "On Crimes and Punishments", 1764

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