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echo: os2lan
to: Roy J. Tellason
from: Peter Knapper
date: 1999-09-09 19:15:11
subject: 2 OS/2 networking & Linux

Hi Roy,

 RJT> And I didn't touch anything this time around relating 
 RJT> to the MPTS stuff,  except for adding that protocol.  
 RJT> Put it on "adapter number 1",  too,  rather than "0" 
 RJT> which is where the software initially stuck it.  I 
 RJT> don't remember why this was important,  only that it 
 RJT> had come up somewhere in these discussions in the past.

If you load a protocol more than once against a Network Card, the second
config MUST use a different "Logical Adapter Number" (I will use the term
LEVEL for this value from here on), the SAME protocol cannot exist more than
ONCE at the same LEVEL. In this case, the 2 NETBIOS protocols

  0 IBM OS/2 NETBIOS
  1 IBM OS/2 NETBIOS OVER TCP/IP

means that one of them MUST run at a different LEVEL to the other. The actual
protocol titles are NETBEUI and TCPBEUI, but they are both NETBIOS protocols.
If you have both the above configured against a card, then look at your
\IBMLAN\IBMLAN.INI file and you will see the 2 protocols configured in the
[Networks] section as net1 and net2.

As an aside to this, what this really means is that it is POSSIBLE to load IBM 
OS/2 TCP/IP against a network card twice, but using different LEVEL numbers.
You could then configure different TCP/IP address ranges on the same card, 1
for each TCP/IP PROTOCOL driver loaded. The bottom line is that you could then 
have 1 OS/2 PC appearing in 2 distinct TCP/IP Networks on the same LAN
segment. You could then use this to install a Firewall on the OS/2 box between 
those segments without having a seperate physical LAN in place, however the
benefits of doing this are moot considerng the low cost of Ethernet cards
these days...

Cheers.......pk.


--- Maximus/2 3.01
* Origin: Another Good Point About OS/2 (3:772/1.10)

SOURCE: echoes via The OS/2 BBS

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