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- Newsgroups: comp.protocols.tcp-ip.ibmpc
- Path: sparky!uunet!munnari.oz.au!bruce.cs.monash.edu.au!monu6!bunyip.cc.uq.oz.au!cheops!logier
- From: logier@cheops.qld.tne.oz.au (Rob Logie)
- Subject: Re: Multiple TCP/IP stacks over 2 NDIS drivers. Possible?
- Message-ID: <1993Jan25.080810.7377@cheops.qld.tne.oz.au>
- Keywords: TCP/IP, NDIS, ODI
- Organization: Telecom Australia, TNE Computer Support Services
- References: <4666@bimacs.BITNET>
- Date: Mon, 25 Jan 1993 08:08:10 GMT
- Lines: 40
-
- geiman@bimacs.BITNET (geiman mark) writes:
-
- >Hi to all,
- >Suppose I have two different network cards in my computer, with an appropriate
- >NDIS driver for each. Now, suppose I want to run two TCP/IP stacks of
- >different vendors simultaneously, each being able to use both interfaces.
- >Is it possible in DOS? in OS/2? in MS Windows? in Windows NT?
- >I've been told this is possible with ODI drivers for OS/2.
-
- >Thanks for any info,
-
- >Mark Geiman email: geiman@bimacs.cs.biu.ac.il
- >ECI Telecom FAX : 972-3-9266200
- >Hashiloah 4 Phone: 972-3-9266164
- >Petah-Tikva
- >Israel
-
- Depending on all the normal problems of getting drivers to co-exists under
- dos, it is possible to have two TCP-IP stacks talking to two seperate
- ethernet cards in a PC. However, each TCP-IP stack (With different IP
- addresses) can only ever talk to one ethernet controller . This is because
- for a given local TCP-IP connection, the ethernet address associated
- with a given TCP-IP address must remain constant. Also, it is possible
- to alternatively run different TCP-IP stacks with different address on
- the same card one at a time. However this will cause problems with
- the ethernet <-> TCP-IP mapping of other hosts on the local network. Their
- mapping tables may need to be flushed more oftern than usual. Also, a
- machine reboot is oftern required between each stack being loaded.
-
-
- It is far better with simpler PC type machines to only run one lan card
- and stack. The only exception to this would be for large fileservers,
- or for PC's acting as a router.
-
-
- --
- Rob Logie | The opions expressed are mine alone and in
- Telecom Australia ACN 051 775 556 | no-way reflect the views or policies of the
- TNE Computer Support Services | Australian and Overseas Telecommunications
- EMAIL: logier@cheops.qld.tne.oz.au| Corporation. "These are my opinions alone"
-