Hello mailing list I read in the snmp-ups manpage that this driver does not provide a shutdown function because there will be no network at the point it is called. So I studied the Ubuntu initscripts, and in fact the network is killed in /etc/rc0.d/S35networking while the driver would be called at /etc/rc0.d/S90halt so this is correct... however! ...disabling the S35networking seems a simple fix to me. I don't see any obvious problem in having the network interface up while halt is reached. At most for kexec could be a problem (not tried) but we can do without that. What problems do you see in disabling /etc/rc0.d/S35networking so that interfaces are not deconfigured? If you confirm you don't see any problem, then I think I can implement my own way to kill the power via telnet. (and also I could suggest you to actually implement the shutdown procedure in snmp-ups, and just document the fact that users have to delete /etc/rc0.d/S35networking for it to work) Thank you