We are many that have wondered how to make nmblookup work with WINS. Now I finally found out by using smbdump on a NT client and on nmblookup. The difference turned out to be that NT asks for a #20 name, while nmblookup asks for #00. The #00 request gets completly ignored by the NT WINS server, unless you are asking for its own name. The following works: [root@ormen source]# ./nmblookup odin#20 -B danbo.ostenfeld.dtu.dk Added interface ip=192.38.215.240 bcast=192.38.216.1 nmask=0.0.0.0 Sending queries to 192.38.216.1 192.38.220.3 odin ormen, danbo and odin are on three different broadcast isolated subnets. Baldur