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 From:  Jeff Buehler <jeff at buehlertech dot com>
 To:  w dot plein at gmail dot com
 Cc:  Alex Neuman van der Hans <alex at nkpanama dot com>, m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] RE: RE : [m0n0wall] outlook -> exchange problem
 Date:  Mon, 20 Feb 2006 08:36:59 -0800
Hi Lee, Alex, Bill -

OK - three recommendations (at least) so I'll try and reduce the MTU on 
the servers (and each of the problem client platforms?  What a hassle!) 
but I have a couple of questions you may be able to help me with:

1. do I need to modify the MTU setting on the m0n0wall devices that are 
establishing the IPSEC VPN as well?
2. Will I have any problems with Drtcp on 2003 server?  I have used it 
on XP before with no problem, but I don't want to munge my servers.
3. If I modify the server MTUs, do I need to modify EVERY client 
platform 9or just the four with the problem)? Will the others that are 
working fine start having problems if I reduce the server MTU and not 
their MTU also?


w dot plein at gmail dot com wrote:
> At 05:38 PM 2/19/2006, Alex Neuman van der Hans wrote:
>> True, I once had a similar problem with SQL Servers not replicating 
>> well with each other. Turns out both were on DSL links, and behind 
>> firewalls - and strange stuff was happening to packets, with both the 
>> DSL providers and the firewall vendor collectively pointing their 
>> fingers at everybody else.
>> I used DRTCP (http://dslreports.com/drtcp/) to reduce the MTU to 1430 
>> at each side and Presto! - everything's been working perfectly since 
>> then.
> Basolutely!
> This should be an FAQ:
> "When using any Microsoft file sharing, MS-SQL or MS Remote Desktop 
> protocols, if having slowdowns or problems especially with VPN or 
> PPOE, reduce your MTU and try again."
> -- 
> Bill Plein
> w dot plein at gmail dot com
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