eriks@nexus.yorku.ca (06/08/90)
I'm not at all conversant with the Appletalk protocols, hence my
naivette may be showing...
We need to provide a couple of separate groups of Mac's with the
capability of talking to each other via Appletalk (for file exchange,
access to a mail server, etc). The existing transport medium is
a couple of Ethernets connected by cisco boxen. The intention is
to use Apple's own Appletalk Internet Router (did I get that right?) software
on a dedicated Mac-per-lab to gate between Localtalk in the labs and
Ethertalk between labs.
Now, it is my understanding that cisco's (we're running 8.0(13) software)
are compatible with the Ethertalk V1.0 software but not Ethertalk V2.0.
o Is is sufficient to ensure that my gateway Mac's are running Ethertalk V1.0
and everything will play together without a hitch? [He asks, hopefully :-)]
o Has anyone 'out there' used the Apple Internet Router software in
conjunction with cisco's routing Ethertalk? Are there any caveats
that we should be aware of?
o Is Ethertalk addressing so radically different from Localtalk? Part of
my confusion arises from my impression that Appletalk V1 uses 8-bit
addressing and Appletalk V2 uses 24-bit addressing... but cisco's
documentation says that they deal with 24-bit Appletalk addresses
and yet only support Appletalk V1. Huh?
Thanks in advance to any and all that respond,
Eriks
---
Eriks Rugelis York University, Computing and Communication Services,
4700 Keele St., North York, Ontario, Canada. M3J 1P3
E-Mail: eriks@outland.yorku.ca Ma Bell: 416/736-5257 x.22688 FAX: 416/736-5700
--- Of all the things I've lost, I miss my mind the most. ---dd@ariel.unm.edu (06/08/90)
> o Is is sufficient to ensure that my gateway Mac's are running Ethertalk V1.0 > and everything will play together without a hitch? [He asks, hopefully :-)] I dunno, sorry. > o Has anyone 'out there' used the Apple Internet Router software in > conjunction with cisco's routing Ethertalk? Are there any caveats > that we should be aware of? Again, I don't know. > o Is Ethertalk addressing so radically different from Localtalk? Part of > my confusion arises from my impression that Appletalk V1 uses 8-bit > addressing and Appletalk V2 uses 24-bit addressing... but cisco's > documentation says that they deal with 24-bit Appletalk addresses > and yet only support Appletalk V1. Huh? Among other changes, I believe AppleTalk has gone IEEE 802.2 compatible, with the Ethernet address being the MAC address of the workstation, in the case that EtherTalk is being used. Previously, they used an 8 bit MAC address, and "hacked" it into working on the Ethernet. Of course other things have changed too, but I believe this is the source of your confusuion on this point. I believe that CISCO supports Ethernet MAC headers instead of IEEE 802.2 headers, with an AppleTalk type field (0x809b), and the old packet formats... > Thanks in advance to any and all that respond, Not sure it was of any assistance! > Eriks -------------------------------------------------------------------- Don Doerner dd@ariel.unm.edu 2701 Campus Blvd. NE (505)277-8036 Albuquerque, NM, 87131
satz@cisco.com (Greg Satz) (06/11/90)
>> o Is is sufficient to ensure that my gateway Mac's are running Ethertalk V1.0 >> and everything will play together without a hitch? [He asks, hopefully :-)] You need the Phase I EtherTalk driver (single set of arrows when viewed from the Chooser). The Internet Router needs the Phase 2 Upgrade Utility which is an Init that helps the router software speak Phase I. >> o Has anyone 'out there' used the Apple Internet Router software in >> conjunction with cisco's routing Ethertalk? Are there any caveats >> that we should be aware of? I use the Apple Internet Router every day and it works just fine. You want to use the latest 8.0 or 8.1 software in your routers. >> o Is Ethertalk addressing so radically different from Localtalk? Part of >> my confusion arises from my impression that Appletalk V1 uses 8-bit >> addressing and Appletalk V2 uses 24-bit addressing... but cisco's >> documentation says that they deal with 24-bit Appletalk addresses >> and yet only support Appletalk V1. Huh? AppleTalk, the protocol -- both phases, uses a 24 bit address. 16 for network and 8 for node. EtherTalk and TokenTalk use 48 bit MAC level node addresses. LocalTalk uses an 8 bit node address which happens to nicely correspond with the AppleTalk node address. LocalTalk media doesn't require an address resolution function. You are confusing the AppleTalk network layer protocol addresses versus the AppleTalk link layer protocol addresses. Greg Satz cisco