We have an application runnng on SUN Solaris. Some users connect to the network via a dial up connection. These users (running Win95 desktops) are dynamically assigned an IP address when they log on. The network is NT. Form UNIX, pinging the user PC is possible the first time they log on. If they log off and log on again they are assigned a new IP. Form UNIX pinging the PC machine now no longer works. DNS is configured, and the DNS server has the correct (new) IP address.
UNIX is looking somewhere else (other than DNS) for the IP address resolution. Where/how is this done?