Flags -f
Type Specifies the type of hardware address. If the address type is specified when invoking arp from the command line, it should not be specified in the file entries. Otherwise it should be specified in each file entry. Valid hardware address types are:
- ether for an Ethernet interface
- 802.3 for an 802.3 interface
- fddi for a Fiber Distributed Data interface
- 802.5 for a Token-Ring interface