-dhcp-host=52:54:00:9c:ef:ad,192.168.1.6,demohost
-dhcp-host=52:54:00:56:09:f9,192.168.1.7,faiserver
-dhcp-host=80:fa:5b:1c:6e:cf,192.168.1.8,tp
+dhcp-host=52:54:00:9c:ef:ad,set:demohost,192.168.1.6,demohost
+dhcp-host=52:54:00:56:09:f9,set:faiserver,192.168.1.7,faiserver
+dhcp-host=80:fa:5b:1c:6e:cf,set:tp,192.168.1.8,tp
+# this is the ip it picks by default if dhcp fails,
+# so might as well use it.
+# hostname is the name it uses according to telnet
+dhcp-host=b4:75:0e:94:29:ca,set:switch9429ca,192.168.1.251,switch9429ca