> if a vendor offers both, he can advise his customers much better which art
> of firewall would be the best for *this* customer.
> the daily maintaining of the firewall is another story.
I personally would not trust advice on what I should buy coming from
someone who is trying to sell me something. Most salesmen are not
technical experts, so even giving them the benefit of the doubt and
assuming they are being honest about it and not just trying to sell me
what they want to sell regardless of my real needs, which is always a
possibility, they can't be expected to be able to analyze my technical
situation and make recommendations. A good salesman knows enough about
the technology to provide useful information on the product, but that's
To any sales people who are offended by these comments, I can only say
that even if the sales person is 100% honest and genuinely interested
in pleasing the customer, there is no way *I* can know that a priori.
So I always have to take any recommendations from sales people with a
grain of salt.