Re: SIMH - networking
From: Gremlin (not-here_at_all.mate)
Date: 11/20/04
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Date: Sat, 20 Nov 2004 19:06:18 +1100
Hi Martin
Thanks for that information. Just out of interest I tried to boot using the
default adapter used by Windows - it works!!
I have set up ftp, telnet, the management console from windows etc. all
work fine and don't seem to interfere with windows. I am monitoring the
SIMH instance to see if it is going crazy with network traffic, but it seems
OK.
So, am I luck or is this an undocumented feature.....
"Martin Vorlaender" <martin@radiogaga.harz.de> wrote in message
news:419ee613.524144494f47414741@radiogaga.harz.de...
> Gremlin <not-here@all.mate> wrote:
>> Could I get a little assistance please...
>>
>> I have read the doco and FAQs and understand why SIMH cant talk on the
>> same
>> interface as the one used by Windows, but, how do I configure a second
>> physical card in the box? For example, under Windows do I disable the
>> card
>> to stop windows from trying to use it and then in SIMH vax.ini tell it to
>> use the MAC address of the disabled card? Will the card work if it is
>> disabled in Windows? If I don't disable the card, how is it different
>> from
>> the original card, other than having a different MAC address?
>>
>> Any help appreciated.
>
> SIMH on Windows (on any network-enabled platform, AFAIK) uses the pcap
> library to talk to the network. It uses a virtual network card - that's
> why you are free to setup a MAC address for SIMH's XQ device.
>
> The pcap library uses promiscuous mode to catch all packets going
> through the network card to filter out those for SIMH's network device
> (i.e. MAC address).
>
> All of this is unrelated to whether or how Windows uses the network card.
> I guess, however, that you have to have Windows load the driver, at least.
>
> You configure which real network card pcap uses by the ATTACH command
> like
>
> simh> ATTACH XQ <your network card's name>
>
> You can find all network cards detected by SIMH and their names using
>
> simh> SHOW XQ ETH
>
> cu,
> Martin
> --
> One OS to rule them all | Martin Vorlaender | OpenVMS rules!
> One OS to find them | work: mv@pdv-systeme.de
> One OS to bring them all | http://www.pdv-systeme.de/users/martinv/
> And in the Darkness bind them.| home: martin@radiogaga.harz.de
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