Value,Unk,Act,Number,Name,Reference 0,0,00,0,PadN option,[RFC4728] 1,0,00,1,Route Request,[RFC4728] 2,0,00,2,Route Reply,[RFC4728] 3,0,00,3,Route Error option,[RFC4728] 4-31,,,,Unassigned, 32,0,01,0,Acknowledgement option,[RFC4728] 33-95,,,,Unassigned, 96,0,11,0,DSR Source Route option,[RFC4728] 97-127,,,,Unassigned, 128,1,00,0,Timeout option,[RFC4728] 129,1,00,1,Destination and Flow ID option,[RFC4728] 130-159,,,,Unassigned, 160,1,01,0,Acknowledgement Request option,[RFC4728] 161-223,,,,Unassigned, 224,1,11,0,Pad1 option,[RFC4728]