ùISO8859-1 6p/§0×1/:/j$š¿ Ï ámmtu: Cannot create a socket. The error number is %d. mmtu: The ioctl SIOCGNMTUS system call failed. mmtu: The ioctl SIOCGETMTUS system call failed. mmtu: Only the root user can add or delete MTUs. mmtu: The ioctl SIOCADDMTU system call failed. mmtu: The ioctl SIOCDELMTU system call failed. mmtu: Invalid MTU to add or delete. usage:%1$s -s %s -d mtu_value %s -a mtu_value