[Simh] Vax.exe emulator and Multinet network configuring

Mark Pizzolato Mark at infocomm.com
Thu May 9 14:20:31 EDT 2019


On Thursday, May 9, 2019 at 11:14 AM, David T Hittner wrote:
> > There probably isn't a way to set the host network device's MAC address so
> that won't get you there.
> 
> If you are privileged enough, SMAC can set the MAC address on Windows.
> Google "smac change mac address".


Thanks for that tidbit.

> Changing the MAC address to the DECNET address does make it a bit trickier to
> start up DECNET though.

Meanwhile, beside the other detail I raised, what are the "a bit trickier" details 
you are referring to?

- Mark

> -----Original Message-----
> From: Simh [mailto:simh-bounces at trailing-edge.com] On Behalf Of Mark
> Pizzolato
> Sent: Thursday, May 9, 2019 1:31 PM
> To: Jonathan Welch <jhwelch at gmail.com>
> Cc: simh at trailing-edge.com
> Subject: EXT :Re: [Simh] Vax.exe emulator and Multinet network configuring
> 
> On Thursday, May 9, 2019 at 9:54 AM, Jonathan Welch wrote:
> > I just moved to a wired connection and now am having success.  Good
> > point about walking before running.
> >
> > I'm on npcap 0.994 current as of last night.
> >
> > I turned off DECNET to eliminate one source of possible trouble.  It
> > would be nice to have it on at some point in the future.
> 
> As I suggested, without DECnet, you should probably get success with a NAT
> connection using either a wired or a wireless host network.  DECnet over
> wireless probably isn't going to be achievable since many WiFi environments
> are particularly IP centric and don't pass arbitrary other packets, and even if
> they did, you would have to convince the host NIC to use a DECnet MAC
> address for everything.  There probably isn't a way to set the host network
> device's MAC address so that won't get you there.
> 
> - Mark
> 
> > sim> sho ver
> > MicroVAX 3900 simulator V4.0-0 Current
> >     Simulator Framework Capabilities:
> >         64b data
> >         64b addresses
> >         Threaded Ethernet Packet transports:PCAP:NAT:UDP
> >         Idle/Throttling support is available
> >         Virtual Hard Disk (VHD) support
> >         RAW disk and CD/DVD ROM support
> >         Asynchronous I/O support (Lock free asynchronous event queue)
> >         Asynchronous Clock support
> >         FrontPanel API Version 12
> >     Host Platform:
> >         Compiler: Microsoft Visual C++ 15.00.30729.01
> >         Simulator Compiled as C arch: x86 (Release Build) on May  1
> > 2019 at 23:0
> > 0:06
> >         Memory Access: Little Endian
> >         Memory Pointer Size: 32 bits
> >         Large File (>2GB) support
> >         SDL Video support: SDL Version 2.0.8
> >         PCRE RegEx (Version 8.36 2014-09-26) support for EXPECT commands
> >         OS clock resolution: 1ms
> >         Time taken by msleep(1): 1ms
> >         OS: Microsoft Windows [Version 6.1.7601]
> >         Architecture: x86 on AMD64, Processors: 8
> >         Processor Id: Intel64 Family 6 Model 42 Stepping 7, GenuineIntel, Level:
> >  6, Revision: 2a07
> >         git commit id: ab3e07a4
> >         git commit time: 2019-05-01T22:56:54-07:00
> > sim>
> >
> > On 5/9/19, Mark Pizzolato <Mark at infocomm.com> wrote:
> > > On Thursday, May 9, 2019 at 7:00 AM, Jonathan Welch wrote:
> > >> The vms systems on our campus are about to be shut down.  My former
> > >> boss and I would like to still have access to our files, so I've
> > >> moved an image of a vax system disk into simh.
> > >>
> > >> He is a networking expert and I am no slouch, but neither of us can
> > >> figure out why we cannot establish any kind of network connection
> > >> outside of the simh.
> > >>
> > >> I've looked back in the archives for help but have only found
> > >> people with linux systems or messages of success with UCX.
> > >>
> > >> This morning I upgraded from Multinet 4.3 to 5.2 and tried to set
> > >> up DHCP but that did not work either.
> > >>
> > >> Npcap is installed.
> > >>
> > >> If I set my mac address to be the same as that of the host laptop I
> > >> can use wireshark to see pings coming out from the vax but there
> > >> are no responses.
> > >>
> > >> I've disabled decnet from starting up to avoid the mac address from
> > >> being changed.
> > >>
> > >> Some guidance in the right direction would be greatly appreciated.
> > >
> > > First: Learn to walk before you run.  Meaning, get things working
> > > with a wired network connection BEFORE you try to use a wireless solution.
> > >
> > > Second: It seems that you might be using a somewhat recent version
> > > of simh since you've got a SHOW ETHERNET command, but it would be
> > > useful to see the output of a SHOW VERSION command.  The latest
> > > Windows binaries are available at:
> > > https://github.com/simh/Win32-Development-Binaries
> > >
> > > Third: Since you've disabled DECnet, that might mean that all you
> > > care about is IP so, you may be able to achieve that both wired and
> > > wirelessly if you use a NAT: attachment for your XQ device.
> > >
> > > - Mark
> > >
> > >
> > >> From my vax.ini file:
> > >> set xq mac=08-24-d7-ca-1f-40
> > >> att xq eth3
> > >>
> > >> From the simh prompt:
> > >> sim> sho eth
> > >> ETH devices:
> > >>  eth0   \Device\NPF_{8E7FBCD3-67EB-4A59-8E35-6713CAB729FA} (Local
> > Area
> > >> Connection 2)
> > >>  eth1   \Device\NPF_{EE67D248-AACC-4A29-99EE-2B84EA08B5EF}
> (VMware
> > >> Network Adapter VMnet8)
> > >>  eth2   \Device\NPF_{7287895B-5B94-43ED-8AA8-1FF910EA836B}
> (Wireless
> > >> Network Connection 2)
> > >>  eth3   \Device\NPF_{DC3CD7F8-4BD9-4610-B8DF-20AC5FBD56FC}
> > (Wireless
> > >> Network Connection)
> > >>  eth4   \Device\NPF_NdisWanIp                              (NdisWan
> > >> Adapter)
> > >>  eth5   \Device\NPF_NdisWanBh                              (NdisWan
> > >> Adapter)
> > >>  eth6   \Device\NPF_{B1392056-6E69-421B-9814-6011441195C2}
> (Wireless
> > >> Network Connection 3)
> > >>  eth7   \Device\NPF_NdisWanIpv6                            (NdisWan
> > >> Adapter)
> > >>  eth8   \Device\NPF_{C7140267-68CB-485A-B343-5751B1865242}
> (VMware
> > >> Network Adapter VMnet1)
> > >>  eth9   \Device\NPF_{795E27CA-60AA-4A1E-AAB0-99FB62537868} (Npcap
> > >> Loopback Adapter)
> > >>  eth10  \Device\NPF_{62CD8A59-7E13-401A-90AB-3CFBC37554E8} (Local
> > >> Area
> > >> Connection)
> > >>  eth11  nat:{optional-nat-parameters}                      (Integrated
> > >> NAT (SLiRP) support)
> > >>  eth12  udp:sourceport:remotehost:remoteport               (Integrated
> > >> UDP bridge support)
> > >> Npcap version 0.994, based on libpcap version 1.9.1-PRE-GIT Open
> > >> ETH
> > >> Devices:
> > >>  XQ     eth3 (Wireless Network Connection)
> > >> Ethernet Device:
> > >>   Name:
> > >> \Device\NPF_{DC3CD7F8-4BD9-4610-B8DF-20AC5FBD56FC}
> > >>   Reflections:             1
> > >>   Self Loopbacks Sent:     2
> > >>   Self Loopbacks Rcvd:     2
> > >>   Host NIC Address:        00:24:D7:CA:1F:40
> > >>   Packets Sent:            2
> > >>   Packets Received:        26
> > >>   Asynch Interrupts:       Disabled
> > >>   Read Queue: Count:       24
> > >>   Read Queue: High:        24
> > >>   Read Queue: Loss:        0
> > >>   Peak Write Queue Size:   0
> > >>   BPF Filter: (((ether dst 08:24:D7:CA:1F:40) or (ether multicast))
> > >> and not ((et her src 08:24:D7:CA:1F:40))) or ((ether dst
> > >> 08:24:D7:CA:1F:40) and (ether src
> > >> 08
> > >> :24:D7:CA:1F:40)) or ((ether dst 00:24:D7:CA:1F:40) and (ether
> > >> proto
> > >> 0x9000))
> > >> sim>
> > >>
> > >> Multinet settings
> > >> MultiNet Network Configuration Utility V5.2(107) [Reading in
> > >> MAXIMUM configuration from MULTINET:MULTINET.EXE] [Reading in
> > >> configuration from MULTINET:NETWORK_DEVICES.CONFIGURATION]
> > >> NET-CONFIG>sho
> > >> Interface                                Adapter     CSR Address
> > >> Flags/Vector
> > >> ---------                                -------     -----------
> > >> ------------
> > >> se0      (Shared VMS Ethernet/FDDI)       -NONE-        -NONE-
> > >> -NONE-
> > >>           [TCP/IP: 10.0.0.150, IP-SubNet: 255.255.255.0, IP-Broadcast:
> > >> 10.0.0.255]
> > >>           [VMS Device: XQA0, Link Level: Ethernet ]
> > >>           DHCP Client for the interface is enabled
> > >>
> > >>
> > >> Official Host Name:             vax1
> > >> Default IP Route:               10.0.0.1
> > >> Domain Nameserver:              127.0.0.1
> > >> Timezone:                       EST
> > >> Timezone Rules:                 US/EASTERN
> > >> Load UCX $QIO driver:           TRUE
> > >> Load PWIP (Pathworks) driver:   TRUE
> > >> DHCP Client Flag:               1
> > >> NET-CONFIG>
> > >> _______________________________________________
> > >> Simh mailing list
> > >> Simh at trailing-edge.com
> > >> http://mailman.trailing-edge.com/mailman/listinfo/simh
> > >
> 
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