I'd say it's almost a must, but you also need to look at what you
want to protect and the level of protection you want. For all your
internal office machines, full protection is a must. You also want
to limit accessability to the control ports of your modem banks and
other network hardware. Your public web server can esily live behind
a heavy duty firewall.
As for protecting user machines??? I don't know.
If I was setting up an ISP, I'd seriously consider having multiple
firewalls. Most of them could be simple screening routers, but I'd
use ones with statefull inspection for the office machines and any
sensitive servers.
Where and what type of fire wall really depends alot on you network
topology, and the level of protection you want for each segment.
Emad Hazza wrote:
>
> I have a question which have been answered before.
> As an ISP do I really need to have a firewall, if so what do you think of the PIX
>firewall.
> I need to convince my management and some of the corporate customers, whether a
>firewall is a good solution for an ISP security.
>
> Thankyou
>
> Emad Hazza
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| Bryan Andersen | [EMAIL PROTECTED] | http://softail.visi.com |
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| -Bryan Andersen |
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