Great Circle Associates Firewalls
(October 1993)
 

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Subject: Proxy services over single-host dialup IP service?
From: "Andrew T. Robinson" <netmaine @ BITNIC . EDUCOM . EDU>
Date: Thu, 7 Oct 93 16:01:42 EDT
To: FIREWALLS @ GreatCircle . COM
Cc: Bob Haskins <haskins @ mipps . myapc . com>

Scenario:  Customer connects to Internet via a single-host dialup IP
           service.  Internet provider assigns a single IP number and
           host name to dialup host at customer site.

           Customer host connections is via modem, perhaps with some
           software such as Morningstar PPP to handle demand dial, etc.

Question:  Would it be possible for the customer to provide LAN workstations
           with Internet access through the use of proxy services?  What
           would be the hardware/software requirements (ie., would something
           like Morningstar PPP be necessary or would a regular TCP/IP
           package on the host work)?

           I am assuming this would work because the dialup host is
           essentially a dual-homed host--one interface is the serial port
           running SLIP/PPP, and the other is the NIC to the customer's
           LAN.

           Has anyone done this?

           Would probably want to support telnet, ftp, smtp, and x (motif)
           at a minimum for LAN users.


Andy


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