From: jasons@bmc.uu.se (Jason E Stewart)
Newsgroups: comp.sys.mac.comm
Subject: Re: Coexistence of LocalTalk and Ethernet MacTCP on Mac
Followup-To: comp.sys.mac.comm
Date: 22 Jan 1993 23:06:28 GMT
Organization: Dept of Med Gen
Distribution: world
NNTP-Posting-Host: mac3.medgen.uu.se

In article <1993Jan22.054028.11453@tigger.jvnc.net>,
aggarwal@tigger.jvnc.net (Vikas Aggarwal) wrote:
> 
> My mac-II (running system 7) has an Asante Ethernet card (as well
> as the Localtalk port, ofcourse :-)
> 
> The ethernet has TCP/IP hosts on it, whereas the Localtalk net
> has all the other Macs, printers on it. A gatorbox also connects
> between the ethernet and the localtalk.
> 
> Until now, all the Macs on the LocalTalk would connect to the TCP/IP
> hosts (on the ethernet) thru the gatorbox using NCSA+MacTCP.
> 
> Now, I would like that for AppleTalk, my mac uses the LocalTalk
> connection and for TCP/IP, my mac uses the ethernet directly.
> 
> That cuts down my dependence on the gatorbox entirely.
> 
> can I do this ? And if so, how would I configure my AppleTalk and my
> MacTCP (I think NCSA doesn't care if the MacTCP drivers are doing their
> job and properly configured) ?
> 
> (pushing my luck here).. Is there a way for the LocalTalk macs to use
> my Mac as a gateway to the TCP/IP hosts also in case the gatorbox goes
> down ?
> 
> lastly, can I configure my mac so that EtherTalk macs can access my
> mac via the ethernet card, localtalk macs access me via the localtalk
> interface and ethernet TCP/IP hosts access me via the ethernet all
> at the same time ?


Wow! It sounds like you've already eaten the cake and are asking for
seconds!!

Sorry to burst your bubble, but asfarasIknow:

1) Yes, you can talk both TCP/IP and AppleTalk at the same time. Choose
EtherTalk in the Network CP and then ethernet (NOT ETHERTALK!!!) in the
MacTCP CP. You will have to get a permanent IP address from your local IP
Guru. 

2) No, you can't use both EtherTalk and LocalTalk at the same time. You
have to use the Network CP to choose which type of Appletalk you want run
i.e. either EtherTalk or LocalTalk. And by changing from one to the other
you wreck any existing connections you may have. (Mind you, some kind
hearted soul out there has probably written a dandy INIT to overcome this
:).

3) No, you can't work as a gateway for the same reasons as you can't run
both LocalTalk and EtherTalk at the same time.

4) Yes, Yes(sort of), and No(sort of). All macs can get at you through the
chooser as long as you are running system 7 file sharing on your computer.
Because you're running EtherTalk you show up in the appropriate Zone (all
this is handled by the AppleTalk config in the GatorBox - choosing which
AppleTalk and EtherTalk Zones can use the GatorBox). So the LocalTalk macs
can only see you if The GatorBox is up (while your running EtherTalk that
is), while the EtherTalk Macs can always see you (ditto). TCP/IP hosts can
only see you if you are running some kind of server software (NFS, or FTP,
or the likes), but you are always pingable if people check to see if your
IP address is taken.

Hope this helps, and please correct me if I'm in error on any of this....

Jason.
----------------------------------------------------------------
Jason Stewart    	                      Father at large
Department of Medical Genetics
jasons@bmc.uu.se
Newsgroups: comp.sys.mac.comm