The DL_EUI48 data type is defined in the Mstcpip.h header file. The string parameter S and the function return value are defined to the PSTR data type. When both UNICODE and _UNICODE are not defined, RtlEthernetAddressToString is defined to RtlEthernetAddressToStringA, the ANSI version of this function. The string parameter S and the function return value are defined to the PWSTR data type. When either UNICODE or _UNICODE is defined, RtlEthernetAddressToString is defined to RtlEthernetAddressToStringW, the Unicode version of this function. How to use the converter Enter the dotted-decimal IP address in the 'IP address' field located at the top and hit enter or click the 'Convert IP Address' button. RtlEthernetAddressToString is a convenience function that does not require that the Windows Sockets DLL be loaded to access a function provided in Windows Sockets to perform string to Ethernet address conversion. This IP address converter takes an IP address in the dotted-decimal format and converts it into the corresponding binary, octal, hexadecimal and dword/decimal IP addresses. Keep in mind that in my working example, even though the IP traffic got sent to the MAC address related to the default gateway, the IP packets destination of 4.2.2. Separated by dashes (F4-CE-46-2D-90-8C, for example). The basic string representation of an Ethernet MAC address consists of 6 pairs of hexadecimal numbers If you start with a MAC address, you first need to get the IP address. The string returned in the S parameter is represented in the form for an Ethernet MAC address string in the non-DIX standard "-" notation. The string represents a numeric Ethernet addressĮxpressed in the non-DIX standard "-'' notation. The RtlEthernetAddressToString function is used to convert a binary Ethernet address to the string representation of the Ethernet address in Ethernet EUI-48 data-link layer address format (also commonly known as a MAC address). This can be used by the caller to easily append more information to the string. To get a 48-bit MAC address OUI (24 bits, leaving 24 bits for individual addresses) registered with the IEEE used to cost 1000, which was a lot of money in those days. Return valueĪ pointer to the NULL character inserted at the end of the string representation of the Ethernet MAC address. To convert an IP multicast address to a 48-bit MAC multicast address you need to understand how the 48-bit MAC multicast address came about. This buffer should be large enough to hold at least 18 characters. The Ethernet address is in network order (bytes ordered fromĪ pointer to a buffer in which to store the NULL-terminated string representation of the Ethernet address. Syntax NTSYSAPI PSTR RtlEthernetAddressToStringA( RtlEthernetAddressToString function converts a binary Ethernet address to a string representation of the Ethernet MAC address.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |