The objective is to calculate the corresponding EUI-64 address based on this MAC address. SCENARIO: Router R1 has a MAC address of 0015.2BE4.9B60 on its Fa 0/0 interface. The following steps walk you through a sample EUI-64 calculation:
This command tells the interface to use 2000:1:: as the network portion of the IPv6 address and to automatically calculate the 64-bit host portion of the IPv6 address.ĮUI-64 uses an interface’s MAC address as the basis of it’s calculation, even though we need a 64-bit host address, and a MAC address is only 48 bits in length. You could (in interface configuration mode of your Cisco IOS router) enter the command: For example, let’s say you have a router interface on the IPv6 network of 2000:1::/64. While you could manually configure the host bits for a router interface, a more efficient approach might be to automatically calculate those host bits using a 64-bit Extended Unique Identifier, known as EUI-64. A common approach is to use 64 bits to represent the network segment and 64 bits to represent the host on that network segment. Thanks for your help, I wish you all a healthy christmas time.An IPv6 address is 128 bits in length, and like an IPv4 address, it’s divided into prefix bits (representing the network segment) and host bits (uniquely identifying a host on that network segment). Sadly, I have no access to std::stringstream ( ) and std::hex due to the CE platform. I have tried to access the macString array using macString + i * 2 earlier but that does also not seem to do the trick. However, macString only has the last MAC address as value afterwards (which is address->addr ) and I just can't get my head around what I am doing wrong. Wprintf(L"Converted string: %ls\n", macString) Swprintf(&macString, L"%02X", address->addr) So, what I've been trying to do is write the corresponding hex values into a buffer wchar array like so: (always 13 long, 12 for 6*2 digits in the MAC, 1 for '\0' delimiter) void MacToString(bd_addr *address, WCHAR *macString) The MACs are saved in own structs, given by the bluetooth API: typedef struct bd_addr_t
The environment forces me to use WCHAR instead of usual chars.
ini file and print it from time to time, hence I need to be able to convert the 6-byte MAC from hex to a string and back. I have to store a MAC address to and read it from an. For our custom sources to work, we have to use VS 05 as an environment. I am programming a C/C++-App for an HMI-Device running on Windows CE 6.0. The last days, I've been searching and reading through several dozens of questions on here and StackOverflow that sound similar to my problem, but I have not yet managed to get any solution to work.
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