From owner-freebsd-questions Thu Feb 6 21:44:58 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id VAA06438 for questions-outgoing; Thu, 6 Feb 1997 21:44:58 -0800 (PST) Received: from f22.hotmail.com (F22.hotmail.com [207.82.250.33]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id VAA06433 for ; Thu, 6 Feb 1997 21:44:56 -0800 (PST) Received: (from root@localhost) by f22.hotmail.com (8.7.5/8.7.3) id VAA11721; Thu, 6 Feb 1997 21:44:55 -0800 (PST) Date: Thu, 6 Feb 1997 21:44:55 -0800 (PST) Message-Id: <199702070544.VAA11721@f22.hotmail.com> Received: from 202.190.129.208 by www.hotmail.com with HTTP; Thu, 06 Feb 1997 21:44:55 PST From: "M.C Wong" To: questions@freebsd.org Subject: IPX, -->, TCP/IP, protocol, converter, ? Content-Type: text/plain Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Hi, I wonder implementation like BSDI Internet Gateway for permitting Novel clients which talk IPX/SPX to be able to get access to the Internet (TCP/IP based) without requiring dual-stack on each client is considered a protocol converter ? How about Cisco's PIX ? How does it work in principles on the server side and the client side ? According to BSDI literatures, there are some clients shipped together with the Internet Gateway and they are all winsock 1.1 compliant clients. I wonder how can those apps get to talk TCP/IP with winsock without running TCP/IP stack. Can any expert in this field please explain ? If one is to include such features in FreeBSD, where is the right entry point to start ? Presumably, there will be a pseduo generic network driver interface that intercepts all different protocols and depending on whether protocol conversion (implicitly means from anything else to TCP/IP) is enabled in the kernel, then an internal table is set up to hold all such connections which will be encapsulated in an IP packet ? I am not sure if I am talking the right idea, as we are not looking at, say, IPX routing with encapsulation in IP packet or are we ? And how about the requirments on the (IPX) clients applications ? Is a customized winsock needed ? Thanks in advance. --------------------------------------------------------- Get Your *Web-Based* Free Email at http://www.hotmail.com ---------------------------------------------------------