On Wed, 11 Aug 2004 14:26:51 +0400 (MSD) Sergey Lapin &lt;slapin(a)drevlanka.ru&gt; wrote: ething interesting: I want to implement possibility to Again, you don't need to. Just configure IP as usual using an emulated Ethernet card. E.g. add to the SIMH configuration: set xq mac=01-02-03-04-05-06 at xq0 eth0 Then boot as usual. When the system comes up, it will recognize an ethernet card that you can configure as you want. E.g. on boot a message qe0: delqa, hardware address 01:02:03:04:05:06 will appear in the system log, and you can use a /etc/netstart script like the one that follows to configure the net: - ------------------------- 8< cut here 8< ----------------------- #!/bin/sh - # # @(#)netstart 1.1 (Berkeley) 1/10/99 routedflags=-q rwhod=NO # myname is my symbolic name # my-netmask is specified in /etc/networks # #hostname=myname.my.domain hostname=quasijarus.drevlanka.ru# should be the actual internet name of the emulated machine mynetmask=81.211.111.250 # should be an actual valid IP address mygateway=81.211.111.1 # should be the real IP of the gateway you use hostname $hostname ifconfig imp0 inet $hostname ifconfig de0 inet $hostname netmask $mynetmask ifconfig qe0 inet $hostname netmask $mynetmask ifconfig lo0 inet localhost route add $hostname localhost 0 hostid $hostname route add default $mygateway 0 - ------------------------- 8< cut here 8< ----------------------- That should do the trick: now if you have a valid spare IP address to assign the emulated machine, and use it above, your emulated system will behave like any other Internet host. Oh, and of course you will want to have a valid /etc/resolv.conf file so users in the emulated host can resolve names,like e.g. domain drevlanka.ru nameserver 195.161.9.196 nameserver 81.211.111.254 See the manual and FAQ for SIMH for more details on what's going on and other possible alternatives. The same goes for 2.11BSD, which takes half the amount of space that 4.3BSD does, and ultrix-3.1 which takes even less yet. E.g. from my setups here: # du -sk 2.11bsd 4.4bsd ultrix-3.1 325328 2.11bsd 608952 4.3bsd 20524 ultrix-3.1 Which is to say, may be you will be better off using Ultrix-3.1, which BTW also includes vi, more and much more... In this case just edit the /etc/rc file to set the appropriate parameters to ifconfig and default route. j -- These opinions are mine and only mine. Hey man, I saw them first! José R. Valverde De nada sirve la Inteligencia Artificial cuando falta la Natural