> However, for most protocols which would use this type of
> service (such as SQL, etc), the protocol is proprietary, and trying to
> provide something which could handle all the permutations would be
> unwieldy and expensive.
Frederick M Avolio wrote:
> If the protocol is proprietary, but customers require it through a
> firewall, the vendor will make the protocol available to firewall vendors
> (case in point is SQL*NET and RealAudio). My observation is that it is
> usually neither unwieldy nor expensive to accomplish.
I agree that it is relatively easy to do a protocol-specific proxy for
SQL or RealAudio, the point I was making is that there are a *lot*
of custom protocols out there, and trying to cover them all either
with a single "intelligent" proxy, or by application-specific proxies
would be unwieldy and expensive. If there were only two, we'd all have
done them by now. :)
Reminds me of the "Scenery Disks" for Flight Simulator; "please insert
your guglioplex proxy disk into drive A: and press return..."
Dermot Tynan +353 91 754608
com DTN: 822-4608
Digital Equipment International BV, Galway, Ireland