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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Folks,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Since I upgraded to Ubuntu 17.10 (now GNOME shell), I had some problems with networking setup. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I finally resolved a problem with TAP device because ifconfig display format changed. I updated my shell script to create TAP0 device for SIMH use.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>With /etc/network/interfaces, I still have some problems with auto br0 or tap0 setup. Does anyone have good TAP0 setup for that interfaces?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I successfully installed SIMH 4.0 beta and noticed that new VDE facility (virtual distributed ethernet). That is very new to me.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Does anyone have any experience with VDE? VDE vs TAP?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>For 4K monitor users, login with Xorg and use ‘xrandr –output DP-1 –scale 0.5x0.5’.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal>Tim<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Here is my new shell script for SIMH’s TAP device. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>#!/bin/sh<o:p></o:p></p><p class=MsoNormal>HOSTIP=`/sbin/ifconfig eno1 | grep "inet " | gawk -- '{ print $2 }'`<o:p></o:p></p><p class=MsoNormal>HOSTNM=`/sbin/ifconfig eno1 | grep "netmask" | gawk -- '{ print $4 }'`<o:p></o:p></p><p class=MsoNormal>HOSTBR=`/sbin/ifconfig eno1 | grep "broadcast" | gawk -- '{ print $6 }'`<o:p></o:p></p><p class=MsoNormal>HOSTGW=`/sbin/route -n | grep ^0.0.0.0 | gawk -- '{ print $2 }' | head -n 1`<o:p></o:p></p><p class=MsoNormal>#<o:p></o:p></p><p class=MsoNormal>#echo "Host Addr ${HOSTIP}"<o:p></o:p></p><p class=MsoNormal>#echo "Netmask ${HOSTNM}"<o:p></o:p></p><p class=MsoNormal>#echo "Broadcast ${HOSTBR}"<o:p></o:p></p><p class=MsoNormal>#echo "Default GW ${HOSTGW}"<o:p></o:p></p><p class=MsoNormal>#<o:p></o:p></p><p class=MsoNormal>/usr/bin/tunctl -t tap0 -u sword7<o:p></o:p></p><p class=MsoNormal>/sbin/ifconfig tap0 up<o:p></o:p></p><p class=MsoNormal>#<o:p></o:p></p><p class=MsoNormal># Now convert eth0 to a bridge and bridge it with the TAP interface<o:p></o:p></p><p class=MsoNormal>/sbin/brctl addbr br0<o:p></o:p></p><p class=MsoNormal>/sbin/brctl addif br0 eno1<o:p></o:p></p><p class=MsoNormal>/sbin/brctl setfd br0 0<o:p></o:p></p><p class=MsoNormal>/sbin/ifconfig eno1 0.0.0.0<o:p></o:p></p><p class=MsoNormal>/sbin/ifconfig br0 $HOSTIP netmask $HOSTNM broadcast $HOSTBR up<o:p></o:p></p><p class=MsoNormal># set the default route to the br0 interface<o:p></o:p></p><p class=MsoNormal>/sbin/route add -net 0.0.0.0/0 gw $HOSTGW<o:p></o:p></p><p class=MsoNormal># bridge in the tap device<o:p></o:p></p><p class=MsoNormal>/sbin/brctl addif br0 tap0<o:p></o:p></p><p class=MsoNormal>/sbin/ifconfig tap0 0.0.0.0<o:p></o:p></p></div></body></html>