C# string format mac-address. Share improve this question follow edited Jan 14 '16 at 21:00. 3,694 9 9 gold badges 50 50 silver badges 73 73 bronze badges. Asked Sep 12 '11 at 6:48. 961 3 3 gold badges 23 23 silver badges 57 57 bronze badges. 8 'using the code above ONLY'? If that doesn't return the MAC address with any. Format mac addresses in cells by adding colon with formula. The below formula can help you format number as mac address by adding a colon. Please do as follows. Select a blank cell, enter formula into the Formula Bar, and then press the Enter key.
very cool
Edmond Major
A normal MAC address looks like this: 00:09:5B:EC:EE:F2. It is composed of six octets. The first half (00:09:5B) of each MAC address is known as the Organizationally Unique Identifier (OUI). Simply put, it is the card manufacturer. The second half (EC:EE:F2) is known as the extension identifier and is unique to each network card within the specific OUI. Many access points will ignore MAC addresses with invalid OUIs. So make sure you use a valid OUI code when you make up MAC addresses. Otherwise, your packets may be ignored by the Access Point. The current list of OUIs may be found here. Make sure that that the last bit of first octet is 0. This corresponds to unicast addresses. If it is set to 1, this indicates a group address, which is normally exclusively used by multicast traffic. MAC addresses with a source set to multicast are invalid and will be dropped. Examples of valid OUIs: 00:1B:23, 08:14:43, AA:00:04 because 0, 8 and A are even Examples of invalid OUIs: 01:1B:23, 03:23:32 I
Related Questions
How to format mac addresses in cells by adding colon symbol in Excel?
Supposing you received a worksheet contains a list of numbers, and now you need to format all these numbers as mac addresses by adding colon symbol as below screenshot shown. What can you do to achieve it? You can try the method in this tutorial to solve the problem.
Format mac addresses in cells by adding colon with formula
Format mac addresses in cells by adding colon with VBA
Easily format mac addresses in cells by adding colon with Kutools for Excel
Format mac addresses in cells by adding colon with VBA
Easily format mac addresses in cells by adding colon with Kutools for Excel
Format mac addresses in cells by adding colon with formula
The below formula can help you format number as mac address by adding a colon. Please do as follows.
1. Select a blank cell, enter formula into the Formula Bar, and then press the Enter key. See screenshot:
=LEFT(A2,2)&':'&MID(A2,3,2)&':'&MID(A2,5,2)&':'&MID(A2,7,2)&':'&MID(A2,9,2)&':'&RIGHT(A2,2)
Note: In the formula, A2 is the cell contains the number you will format as mac format.
2. Select the first result cell, drag the Fill Handle down to get all mac format numbers. See screenshot:
Format mac addresses in cells by adding colon with VBA
With below VBA code, you can format a range of numbers as mac addresses at once in Excel. Please do as follows.
1. Press the Alt + F11 keys simultaneously to open the Microsoft Visual Basic for Applications window.
2. In the Microsoft Visual Basic for Applications window, click Insert > Module. Then copy below VBA code into the code window.
VBA code: Format numbers as mac addresses in cells
3. In the opening Kutools for Excel dialog box, please select the cells with numbers you will format as mac addresses, and then click the OK button.
Then you can see all selected numbers are formatted as mac addresses as below screenshot shown.
Easily format mac addresses in cells by adding colon with Kutools for Excel
This section will introduce the Add Text utility of Kutoos for Excel. With this utility, you can quickly add colons to cells at specified positions. Please do as follows.
Before applying Kutools for Excel, please download and install it firstly.
1. Select the cells you need to format as mac addresses. And then click Kutools > Text > Add Text.
2. In the Add Text dialog box, please type a colon into the Text box, select the Specify option, and then enter the specified position numbers into the box. And finally click the OK button.
Note: In this case, I need to add colons after every two numbers in cells, so I enter 2, 4, 6, 8 and 10 and separate them by commas. See screenshot:
If you want to have a free trial ( 30-day) of this utility, please click to download it, and then go to apply the operation according above steps.
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Format For Mac Address Template
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Format For Mac Address
- To post as a guest, your comment is unpublished.You can Format Mac Addresses using stringlearner.com. Much easier.