Have you tried not setting a MAC address on the VMware NIC/switches? Which
NIC type are you presenting to the VM. E1000 is probably the best option
tho VMXNET3 should work too once VMware tools is loaded (E1000 you can get
away without or survive if tools dies for any reason).
On the Alpha side are you running the appropriate PCAP driver on the host
OS, winwoes not interfering by applying any of its protocols on the NIC
and also have the VM switch/ports to accept promiscuos+MAC change+forged
transmits?
Not sure if this guide will help:
http://www.migrationspecialties.com/pdf/VirtualAlpha_UserGuide.pdf
On Wed, 21 Feb 2018 14:57:42 -0000, Paul Koning <[email protected]>
wrote:
On Feb 21, 2018, at 9:08 AM, Timothe Litt <[email protected]> wrote:
I can't think of anything that would fail if the ROM address is the
same as the DECnet address (which is what you're setting up), but no
real hardware could ever have been configured that way. (It is
possible for software to obtain both, though only one goes on the
wire. One set by software overrides the ROM, which is globally unique.)
Most of the later DEC NICs support multiple MAC addresses, with the ROM
address as the default. On such NICs, MOP and LAT (and possibly other
protocols) use the ROM address, while DECnet Phase IV would use the
HIORD style address. A few older NICs, for example the DEUNA, don't
have this capability and for those the MAC address changes for everyone
as soon as you turn on DECnet.
...
I'm not a VMware user, so they may use different terminology than the
following.
So VMware would need to understand that a MAC address can be changed -
more recent OSs don't set the MAC address, so it could be confused. I
wouldn't be surprised if it acted like a switch & tried to filter
"unneeded" packets.
That's definitely a possible issue. Another possibility is that
multicast isn't supported properly. All NICs support broadcast, because
otherwise IP would not work, but multicast is not so commonly used.
DECnet uses it everywhere, though, and requires it to be there.
I remember some discussions about trouble if you use a wireless LAN as
opposed to a wired NIC, but I don't remember any details.
paul
_______________________________________________
Simh mailing list
[email protected]
http://mailman.trailing-edge.com/mailman/listinfo/simh
--
_______________________________________________
Simh mailing list
[email protected]
http://mailman.trailing-edge.com/mailman/listinfo/simh
