On Sat, 19 Aug 1995, Bill Husler wrote:
> I found that the all use static ports.
> AOL and eWorld both use 5190 (kind of a challenge for the proxie eh?),
> and CIS uses 4144 on the PC (wincim) and Telnet (23) on the MAC (maccim).
> Hope this helps! Also, you will need the hostnames. AOL uses
> americaonline.aol.com, eworld uses goto.eworld.com and compuserve uses
> just compuserve.com. Don't point to specific IP addresses 'cause the each
> use multiple IP address in a round robin to load balance! Not too many
> (<6) so you can contain them if you want.
> >Subject: AOL and CIS ports and protocol
> >Sent: 08/21 10:57 AM
> >Received: 08/19 2:56 PM
> >From: Alan Hannan, alan @
> >To: firewalls @
> > alan @
> > Several of our firewall users are desiring to implement transit for AOL
> >and CIS through their firewalls.
> > I do not know what protocol, and what port they use. I understand there
> >are some security concerns with allowing this traffic through, and am
> >these, but to test it technically, I need to know:
> > A) Do they use a static port?
> > B) What port number(s) do they use?
> > C) What protocol do they use? (tcp/udp/?)
> > Thanks!
> >Alan Hannan Email: alan @
> >Network Systems Administrator Voice: (402) 472-0239
> >MIDnet, Lincoln NOC Office Fax: (402) 472-0240
> > "Even paranoids have enemies" - Kissinger
> I have an agreement with my Employer:
> They don't speak for me and I don't speak for them!
Duane Whitty <duane @
ca> | Canadian Coast Guard College
Computer Services | Sydney, Nova Scotia, Canada