nbtstat and nbtscan

D:\DOWNLOAD>nbtstat -A 172.16.91.227 | find "UNIQUE"
    PHATNGUYENT-VNP<00>  UNIQUE      Registered
    PHATNGUYENT-VNP<20>  UNIQUE      Registered

D:\DOWNLOAD>
D:\DOWNLOAD>


D:\DOWNLOAD>nbtscan-1.0.35.exe -r 172.16.91.1/24
nbtscan-1.0.35.exe: illegal option -- r
nbtscan 1.0.35 - 2008-04-08 - http://www.unixwiz.net/tools/

usage: nbtscan-1.0.35.exe [options] target [targets...]

   Targets are lists of IP addresses, DNS names, or address
   ranges. Ranges can be in /nbits notation ("192.168.12.0/24")
   or with a range in the last octet ("192.168.12.64-97")

   -V        show Version information
   -f        show Full NBT resource record responses (recommended)
   -H        generate HTTP headers
   -v        turn on more Verbose debugging
   -n        No looking up inverse names of IP addresses responding
   -p    bind to UDP Port (default=0)
   -m        include MAC address in response (implied by '-f')
   -T    Timeout the no-responses in seconds (default=2 secs)
   -w    Wait msecs after each write (default=10 ms)
   -t    Try each address tries (default=1)
   -1        Use Winsock 1 only
   -P        generate results in perl hashref format

http://www.unixwiz.net/tools/nbtscan.html
D:\DOWNLOAD>nbtscan-1.0.35.exe 172.16.91.1/24
172.16.91.139   WORKGROUP\NGUYENTRAN-VNPC       SHARING
172.16.91.141   WORKGROUP\LONGTO-VNPC           SHARING
172.16.91.143   WORKGROUP\VN-LAP-155-VNPC       SHARING
172.16.91.144   WORKGROUP\VN-LAP-53-VNPC        SHARING
172.16.91.145   WORKGROUP\THONGNGUYEN-PC        SHARING
172.16.91.148   WORKGROUP\KINGNGUYEN-VNPC       SHARING
172.16.91.150   WORKGROUP\DUCTRINH-VNPC         SHARING
172.16.91.149   WORKGROUP\THAOLE-VNPC           SHARING
172.16.91.152   WORKGROUP\BAONGUYENV-VNPC       SHARING
172.16.91.154   WORKGROUP\THONGLE-VNPC          SHARING
172.16.91.158   WORKGROUP\KHIEMLE-VNPC          SHARING
172.16.91.160   WORKGROUP\THANGNGUYEN-PC        SHARING
172.16.91.161   WORKGROUP\KIMBUI-VNPC           SHARING
172.16.91.162   WORKGROUP\BUUNGUYEN-VNPC        SHARING
172.16.91.163   WORKGROUP\VN-LAP-152-VNPC       SHARING
172.16.91.164   WORKGROUP\BAOTRAN-VNPC          SHARING
172.16.91.165   WORKGROUP\DUNGCAO-VNPC          SHARING
172.16.91.169   WORKGROUP\SONNGUYENT-VNPC       SHARING
172.16.91.172   WORKGROUP\NGUYENPHAM-VNPC       SHARING
172.16.91.173   WORKGROUP\TRONGLE-VNPC          SHARING
172.16.91.174   WORKGROUP\VN-LAP-163-VNPC       SHARING
172.16.91.175   WORKGROUP\CANHTRUONG-VNPC       SHARING
172.16.91.176   WORKGROUP\VANGLAM-VNPC          SHARING
172.16.91.178   WORKGROUP\THAIHA-VNPC           SHARING
172.16.91.181   WORKGROUP\HOANGNGUYEN-VNP       SHARING
172.16.91.183   WORKGROUP\BINHHOANG-VNPC        SHARING
172.16.91.185   WORKGROUP\PHATDO-VNPC           SHARING
172.16.91.186   WORKGROUP\XTRUTRI-PC            SHARING
172.16.91.188   WORKGROUP\VN-LAP-177-VNPC       SHARING
172.16.91.192   WORKGROUP\BAONGUYEN-VNPC        SHARING
172.16.91.194   WORKGROUP\VUONGNGUYEN-VNP       SHARING
172.16.91.195   WORKGROUP\THAIHOANG-VNPC        SHARING
172.16.91.197   WORKGROUP\TUANNGUYEN-VNPC       SHARING
172.16.91.198   WORKGROUP\CHINHHOANG-VNPC       SHARING
172.16.91.199   WORKGROUP\DUCLE-VNPC            SHARING
172.16.91.200   WORKGROUP\                      SHARING
172.16.91.201   WORKGROUP\VN-LAP-27-VNPC        SHARING
172.16.91.203   WORKGROUP\VUDAO-VNPC            SHARING
172.16.91.206   WORKGROUP\DONGNGUYEN-VNPC       SHARING
172.16.91.209   WORKGROUP\VN-LAP-50-VNPC        SHARING
172.16.91.210   WORKGROUP\VN-LAP-159-VNPC       SHARING
172.16.91.211   WORKGROUP\NGANGUYEN-VNPC        SHARING
172.16.91.212   WORKGROUP\VN-LAP-141-VNPC       SHARING
172.16.91.213   WORKGROUP\HUYHA-VNPC            SHARING
172.16.91.215   WORKGROUP\THENGUYEN-VNPC        SHARING
172.16.91.217   WORKGROUP\TRINGO-VNPC           SHARING
172.16.91.218   WORKGROUP\VN-LAP-178-VNPC       SHARING
172.16.91.216   WORKGROUP\TAMCHAU-VNPC          SHARING
172.16.91.219   WORKGROUP\VN-LAP-174-VNPC       SHARING
172.16.91.221   WORKGROUP\ANHNGUYEN-VNPC
172.16.91.222   WORKGROUP\TOANPHAM-VNPC         SHARING
172.16.91.223   WORKGROUP\TAIDINH-VNPC          SHARING
172.16.91.224   WORKGROUP\VN-LAP-135-VNPC       SHARING
172.16.91.225   WORKGROUP\MANPHAN-VNPC          SHARING
172.16.91.227   WORKGROUP\PHATNGUYENT-VNP       SHARING
172.16.91.228   WORKGROUP\THANHLE-VNPC          SHARING
172.16.91.229   WORKGROUP\DITA-VNPC             SHARING
172.16.91.230   WORKGROUP\TRUNGHUYNH-VNPC       SHARING
172.16.91.231   WORKGROUP\VN-LAP-153-VNPC       SHARING
172.16.91.232   WORKGROUP\TUNGVU-VNPC           SHARING
172.16.91.235   WORKGROUP\TANLY-VNPC            SHARING
172.16.91.236   WORKGROUP\TUNGQNGUYEN-VNP       SHARING
172.16.91.237   WORKGROUP\VN-LAP-87-VNPC        SHARING
172.16.91.238   WORKGROUP\TRUNGNGUYEN-VNP       SHARING
172.16.91.239   WORKGROUP\ANHLE-VNPC            SHARING
172.16.91.240   WORKGROUP\NGUYENLUU-VNPC        SHARING
172.16.91.241   WORKGROUP\HUNGNGUYEN-VNPC       SHARING
172.16.91.243   WORKGROUP\BAODO-VNPC            SHARING
172.16.91.244   WORKGROUP\XMAONGO               SHARING
172.16.91.234   WORKGROUP\                      SHARING
172.16.91.245   WORKGROUP\DUONGPHAN-VNPC        SHARING
172.16.91.246   WORKGROUP\NHANTRAN-VNPC         SHARING
172.16.91.247   WORKGROUP\VN-LAP-130-VNPC       SHARING
172.16.91.248   WORKGROUP\HUNGCAI-VNPC          SHARING
172.16.91.249   WORKGROUP\HIEUTRAN-VNPC         SHARING
172.16.91.250   WORKGROUP\VN-LAP-167-VNPC       SHARING
172.16.91.251   WORKGROUP\QUYENDAO-VNPC         SHARING
*timeout (normal end of scan)

D:\DOWNLOAD>
D:\DOWNLOAD>