Re: Slow Cisco Vpn performance!

[Jay Tumas <jay_tumas () HARVARD EDU>]

Which Cisco VPN Concentrator - The 3000 series or the ASA?

J

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Jay Tumas - BSEE, NSA/IAM&IEM
                      ~~~~~~~~~~~~~~~~~~~~
- Network Operations, Security and Incident Response Team Manager
- Longwood Medical Area Technical Subcommittee Chair
- Boston Infragard Members Alliance, Executive Board Member
                      ~~~~~~~~~~~~~~~~~~~~
       Harvard University - UIS/Network Operations Center
                  60 Oxford Street, Suite 132
                      Cambridge, MA. 02138
                      ~~~~~~~~~~~~~~~~~~~~
       Office: 617-496-8500  Mobile Device: 617-733-6169
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"The first method for estimating the intelligence of a ruler is 
to look at the men he has around him." - Niccolo Machiavelli



Christian Hroux wrote:
> Hello !
>
>  
>
>             We use Cisco VPN concentrator and most employees use the 
> vpn with their own pc at home.  This might be a security risk and also 
> a situation much harder to support but we mitigate de risk by limiting 
> the vpn access to some port and inspecting traffic with IPS. Some 
> users have reported very slow performance only when using university 
> resources through the VPN.  All the test point out to the cisco vpn 
> client  4.8  we use on windows XP. The only way to improve speed was 
> to optimize windows XP TCP/IP stack with 
>  http://www.speedguide.net/files/TCPOptimizer.exe in  the user`s pc.
>
>  
>
>             This doesn`t seem to be MTU related issue since we varied 
> this parameter during test with the user who was having problem.
>
>  
>
>             Let me know off line if you had that kind of complaint 
> from user.
>
>  
>
> Christian Héroux
>
> Bacc Ing. ÉTS, M. Ing. Poly, étudiant MBA HEC, Ing jr.
>
>  
>
> Analyste de l'informatique
>
> (Sécurité réseau & Télécom)
>
> Section systèmes, infrastructures et télécommunications
>
> École de Technologie Supérieure
>
> 1100 rue Notre-Dame ouest
>
> Montréal, Québec
>
> H3C 1K3
>
> Tél : 396-8800 (7863)
>
>  
>
>  "Network design is 50 percent technology, 50 percent diplomacy, 50 
> percent magic"
>
>