IPP Mail Archive: RE: IPP> review of IPP documents

IPP Mail Archive: RE: IPP> review of IPP documents

RE: IPP> review of IPP documents

Paul Moore (paulmo@microsoft.com)
Fri, 29 May 1998 17:25:07 -0700

Typically (take MS for example). The firewall and the proxy are quite
differnt things. The proxy is an enabler and the firewall is a protector.

None of our internal network has 'real' IP addresses -I can, however use our
proxies to browse anywhere on the net. Our firewall has the task of
prtecting only a limited number of servers that are connected to the
Internet (mail gateways fore xample and the proxies).

today I can use IPP from my desktop machine to print to an IPP printer on
the INternet using our proxy. If I were to move to a different port then I
would not be able to do this - most proxies only work with a defined set of
protocols on well-known ports (HTTP, FTP mainly)

> -----Original Message-----
> From: Keith Moore [SMTP:moore@cs.utk.edu]
> Sent: Friday, May 29, 1998 4:32 PM
> To: Paul Moore
> Cc: 'Keith Moore'; ipp@pwg.org; moore@cs.utk.edu
> Subject: Re: IPP> review of IPP documents
> Please explain why it's useful to be able to send IPP through
> proxies that don't act as firewalls. If you don't have a firewall
> in the way, why not just talk directly to the IPP server?
> Keith