nmap <ip самого аппарата>  
Starting Nmap 5.00 ( http://nmap.org ) at 2009-12-06 03:09 EET Note: Host seems down. If it is really up, but blocking our ping probes, try -PN Nmap done: 1 IP address (0 hosts up) scanned in 3.21 seconds 
$ nmap -PN <ip самого аппарата>  
Starting Nmap 5.00 ( http://nmap.org ) at 2009-12-06 03:10 EET All 1000 scanned ports on 10.110.186.199 are filtered  Nmap done: 1 IP address (1 host up) scanned in 201.45 seconds 
$ nmap -PN <ip его dns>  
Starting Nmap 5.00 ( http://nmap.org ) at 2009-12-06 03:14 EET All 1000 scanned ports on 10.78.72.28 are filtered  Nmap done: 1 IP address (1 host up) scanned in 201.46 seconds