Re: Connectivity through PIX firewall

  • From: Candee Vaglica <candee@xxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Tue, 9 Nov 2004 09:42:43 -0500

CISCO has a decent VPN client. Use that instead of opening your firewall.
You'll be defeating it's purpose.
Or, implement OWA for your users if necessary.

On Tue, 9 Nov 2004 11:57:42 -0000, Bindesh Patel
<bindesh.patel@xxxxxxxxxxx> wrote:
> Hi all,
> i am trying to implement a new exchnage environment and have some questions
> regarding connection from outlook clients to exchnage 2000 cluster though a
> firewall.
> we have opened up ports 25, 135, and 435 to the exchnage server from clients
> but what seems to happen is that exchnage picks random ports when connecting
> to the information store and directory services. We dont want to open the
> firewall for hundreds of these port numbers( ie 5000, 5421 etc)  and was
> wondering of we could use something like IP Sec to determine connectivity.
> Has anyone come across this issue? we have tried to assign these staticaly
> but does not work with exchnage in a clustered environment.
> any help will be appreciated.
> many thanks
> Bindesh Patel.
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