Re: T1 connection slow - firewall config issue

For starters, you may want to see the document on firewall policy best
practices at
http://www.microsoft.com/technet/prodtechnol/isa/2004/plan/firewall_policy.mspx.
The type and order of your rules can have an impact on performance.

You should also review the performance best practices at
http://www.microsoft.com/technet/prodtechnol/isa/2004/plan/bestpractices.mspx.

--
Nathan Bigman
ISA Server Product Team

Please do not send email directly to this alias. This alias is for newsgroup
purposes only.

This posting is provided "AS IS" with no warranties, and confers no rights.
"Synchronicity" <Synchronicity@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:20A6C2BE-BFC3-4525-A400-0D2FD0195EDF@xxxxxxxxxxxxxxxx
our business is using ISA server 2004 enterprise edition with sp2.
we have a t1 line and we have noticed a dramatic decrease in its
performance
Since we upgraded to ISA 2004.(for example browsing the internet with the
firewall on, and the cache off, our t1 performes like a 56.6 modem at
best).
When we go around the firewall, or disable it, the connection speed is
very
quick again. We dont know why our speed is so decreased when the firewall
is
active. The only fix we have used is to use the cache, which of course
appears to fix this issue, but does not really get to the heart of the
problem.

does Anyone have any configuration suggestions, or any ideas as to why we
may be losing speed. I cant imagine that the firewall would slow our
connection this much if it is configured correctly

Thanks



.

Relevant Pages

  • Re: Firewall Security
    ... The experienced, advanced computer user may ... > he better get a third party firewall that blocks outbound communications. ... > people who practice unsafe computing practices and therefore need the ... people who practice unsafe computing need a firewall. ...
    (microsoft.public.windowsxp.security_admin)
  • "Delete anti-virus and firewall software" --Microsoft
    ... Isn't this the same company that says things like this under "Mitigating ... "Firewall best practices and standard default firewall ... Outlook users to uninstall anti-virus software... ...
    (Bugtraq)
  • Re: Does anyone else get pop up messages when not logged on
    ... > firewall and other best practices <insert reference to every best ... And even those that DO offer services to others rarely need a firewall ... A REAL firewall is something that divides complete networks - network ... single host sounds rather strange by that definition, ...
    (microsoft.public.security)
  • Re: Bad Update?
    ... If I uninstall the fix everything works OK. ... disable ZA's Firewall and enable Window's Firewall; ... and the Windows firewall only monitored incoming traffic. ... While I understand your comment about outbound protection - as my Mother used to say... ...
    (microsoft.public.windowsxp.basics)
  • Re: Bad Update?
    ... - XP automatically tries to reinstall the fix. ... disable ZA's Firewall and enable Window's ... and the Windows firewall only monitored incoming traffic. ... I strongly recommend that you abandon your dangerous workaround ...
    (microsoft.public.windowsxp.basics)
Loading