On Sun, Oct 4, 2009 at 5:05 PM, Donovan <dniesen at gmail.com> wrote:
> I have a really screwy issue presenting itself that I believe I have
> narrowed down to the firewall but can't imagine why.
>
> A SonicWall firewall is the primary gateway and firewall.  The site is
> mostly Windows machines.  I went to add on an el-cheapo whitebox
> machine with Ubuntu 9.04 to use for monitoring.  After getting
> everything set up and installed, I noticed that my network transfers
> were only between 5-10KB/sec no matter where I was pulling from.  I
> checked transfer speeds from various Windows machines and they were
> all pulling somewhere between 100-200KB/sec.
>
> I tried changing out network cables and putting it into different
> ports on the switch.  No luck.  Thinking I screwed myself by buying
> the cheapest computer I could find, I installed VMWare Server 2.0 on a
> Windows host that was downloading with no problems.  I threw a Debian
> 5.0 VMWare image in there, set up networking and received the same,
> strangely slow transfers.  The weird thing is I can pull the same
> Debian package from the same site down on the Windows host faster than
> the Debian VM guest.
>
> I've tried raising and lowering MTU with no change.  I poked through
> the SonicWall to see if there was any weird filtering go on but they
> don't have most of the options licensed even.
>
> Has anyone run into this before?
>
>
> --
> Donovan Niesen
>

Disabling "Enable TCP stateful inspection" has cleared it up for now
although I don't know why this would only cause the Linux boxes to
creep.  Maybe the firmware on this SonicWall doesn't play as nice with
the Linux TCP stack?

I'd be curious to see if anybody else has run into the issue but I'll
call it good for now.  I'm going to be replacing that SonicWall
eventually anyway.

-- 
Donovan Niesen