ùISO8859-1˜ ¹Øò7V j ( ¨ 'Ç =ï8-fsocket delete: can't locate %s invalid Ethernet address '%s' usage: ndp [-n] hostname usage: ndp [-n] -a usage: ndp -d hostname usage: ndp [-i if_index] -s hostname ether_addr [temp] internal wrong cmd usage: ndp hostname usage: ndp -d [hostname | IPv6_address] invalid hardware address '%s' %s: Failed to install hardware address IPv6 may not be configured. Run autoconf6 to configure IPv6. Try deleting the existing entry with the -d flag first. usage: ndp [-n] hostname