Two sites are connected as LAN-to-LAN VPN (using Cisco 3005 VPN box). In site A, we can ping/Telnet/Trace all the IP's in site B, except 3 machines. These 3 machine on the same subnet, we can ping the rest of the IP's on the same subnet. These 3 machines are pingable within Site B. We have a single machine in Site A that can ping these 3 machines. When we trace to one of these 3 IP's, we go up to the router that's connected to these machines. Again no access list, security devices are blocking the traffic..Any Idea what could be the problem.. Thanks in advance..