Re: Emulating a cellular interface

[Saqib Ilyas <msaqib () gmail com>]

I'd like to thank everyone who responded to this thread. The next time I see
my friend, I'll ask him to share his experiences so that I may post those on
the list.

On Thu, Nov 11, 2010 at 4:51 AM, Henry Linneweh <hrlinneweh () sbcglobal net>wrote:

> here are some modules that might help
> http://www.pwsstore.com/cellularembeddedmodules.aspx
>
> -henry
>
> ________________________________
>
> From: Andy Davidson <andy () nosignal org>
> To: Saqib Ilyas <msaqib () gmail com>
> Cc: nanog () nanog org
> Sent: Sat, November 6, 2010 5:50:20 AM
> Subject: Re: Emulating a cellular interface
>
>
>
> On 6 Nov 2010, at 05:53, Saqib Ilyas wrote:
>
> > A friend of mine is doing some testing where he wishes to emulate a
> > cellular-like interfaces with random drops and all, out of an ethernet
> > interface. Since we have plenty of network and system ops on the list, I
> > thought we might have luck posting the question here. Is anyone aware of
> a
> > simple tool to do this, other than rather involved configuration of
> > iptables?
>
> Not withstanding Mikael's comments that it shouldn't be lossy, at times
> when you
> want to simulate lossy (and jittery, and shaped, and ....) conditions, the
> best
> way I have found to do this is FreeBSD's dummynet :
>
>
> http://www.freebsd.org/cgi/man.cgi?query=ipfw&sektion=8#TRAFFIC_SHAPER_(DUMMYNET)_CONFIGURATION<http://www.freebsd.org/cgi/man.cgi?query=ipfw&sektion=8#TRAFFIC_SHAPER_%28DUMMYNET%29_CONFIGURATION>
>
>
> Andy



-- 
Muhammad Saqib Ilyas
PhD Student, Computer Science and Engineering
Lahore University of Management Sciences