I have written a DCL procedure that does IP address lookups at predetermined (configurable) intervals. If it finds a mismatched IP address it reconfigures the the TCP-0-n (where "n" is the area - in my case) IP address and schedules a reboot. To avoid reboot, did you try $ ncp set circ TCP-0-n sta off $ multinet set/decnet/remote=new_IP_addr/device=TCPAn:/connect $ ncp set circuit TCP-0-n state on cost 9 hello timer 300 These commands execute without error. I have no means yet to test if remote address gets really changed. -- Regards, Rok