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 From:  "Christopher M. Iarocci" <iarocci at eastendsc dot com>
 To:  Sasa Stupar <sasa at stupar dot homelinux dot net>
 Cc:  M0n0Wall ML <m0n0wall at lists dot m0n0 dot ch>
 Subject:  Re: [m0n0wall] Slow speed between LAN and DMZ
 Date:  Sat, 03 Dec 2005 10:06:27 -0500
Sasa Stupar wrote:

> Hi!
> First my hardware: old Compaq Deskpro 2000 5166 with P166, 64MB RAM, 3 
> NIC Intel Pro 100S Desktop. My network is 100 Mbit.
> In DMZ I have a file server (samba), web, mail. Transfer speed between 
> LAN and DMZ is max about 50 % of possible ( arround 5200 KBps) with 
> Trafic Shaper disabled. If I enable Trafic Shaper (with option to 
> share bandwidth evenly on LAN than speed reaches max at 4200 KBps. If 
> I move server in the LAN then I have speed at max arround 10000KBps. 
> Server in DMZ is connected directly to m0n0 DMZ NIC, LAN users are 
> connected via switch to m0n0.
> Previously I had Realtek cards 8139 series and they all told me to buy 
> a good NIC such as Intel. The speed before was about 300 Bps slower 
> than with Intel NIC.
> Is there anyhing to do to boost transfer between LAN and DMZ?
> Regards,
> Sasa

The key is to find your bottleneck.  Have you looked at memory and 
processor usage during the transfers?  If so, what did you find?  If 
not, do that and let us know what you find.