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advanced-mac [2022/02/16 14:48] – [MAC Address Notes]-expand on nature of problem hogwildadvanced-mac [2023/04/30 16:30] (current) – [How Default WAN MAC Addresses are Derived] -Resize first screenshot, change screenshot captions to "MAC Address" hogwild
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 ====== MAC Address ====== ====== MAC Address ======
  
-The MAC Address menu has settings to let you electronically change (or "spoof") the MAC (Media Access Control) Address of various network interfaces. Note that this function does **not** change the factory-assigned MAC Address in the device's chip. It just overlays the different address in software.+The MAC Address menu has settings to let you electronically change (or "spoof") the MAC (Media Access Control) Address of various network interfaces. This function does **not** change the factory-assigned MAC Address in the device's chip. It just overlays different address in software.
  
-A MAC address is called a Universally Administered Address (UAA) when it's set by the manufacturer or a locally-administered addresses (LAA) when it is assigned by a System Administrator. The first three octets (group of eight bits) are the Organizationally Unique Identifier (OUI). The OUI is a 24-bit number that identifies the manufacturer, organization, or vendor. The last three pairs of digits are the number specific to the device, known as Network Interface Controller (NIC)-specific portion of the address.+A MAC address is called a Universally Administered Address (UAA) when it's set by the manufacturer or a locally-administered addresses (LAA) when it is assigned by a System Administrator.
  
- \\+ \\ {{mac_address_format.png?500x386}}
  
-{{mac_address_format.png}} +The first three octets (group of eight bits) are the Organizationally Unique Identifier (OUI). The OUI is a 24-bit number that identifies the manufacturer, organization, or vendor. The last three pairs of digits are the number specific to the device, known as Network Interface Controller (NIC)-specific portion of the address.
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- \\+
  
 For common device names in FreshTomato, see the [[:faq|FAQ]] page. For common device names in FreshTomato, see the [[:faq|FAQ]] page.
  
- \\+===== How Default WAN MAC Addresses are Derived =====
  
-**Note about Default WAN MAC Address:** Starting with 2021.8, FreshTomato changed the way it configures the default MAC Address for the WAN Port (based on the eth0 / LAN MAC address).+Since release 2021.8, the way FreshTomato configures the default MAC Address for the WAN Port (based on the eth0 / LAN MAC Addresshas changed.
  
-FreshTomato sets wanX MAC Addresses as follows:+FreshTomato now sets wanX MAC Addresses as follows:
  
   *  WAN  => eth0 MAC + (decimal) 16  [in releases 2021.7 and older: eth0 = MAC + 1 (decimal value)]   *  WAN  => eth0 MAC + (decimal) 16  [in releases 2021.7 and older: eth0 = MAC + 1 (decimal value)]
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   * WAN4 => eth0 MAC + (decimal) 19   * WAN4 => eth0 MAC + (decimal) 19
  
-For example, on a router with LAN hardware MAC Address of 2C:30:33:DB:F7:CC, FreshTomato would now set the WAN MAC Address to 2C:30:33:DB:F7:DC, (by adding CC + 16). On releases 2021.7 and older, FreshTomato would have configured the default WAN MAC Address as 2C:30:33:DB:F7:DD (by adding DC + 1).+For example, on a router with LAN hardware MAC Address of 2C:30:33:DB:F7:CC, FreshTomato would now set the WAN MAC Address to 2C:30:33:DB:F7:DC, (by adding CC + 16). In releases 2021.7 and older, FreshTomato would have configured the default WAN MAC Address as 2C:30:33:DB:F7:CD (by adding CC + 1).
  
  \\ This is further illustrated in the following screenshots.  \\ This is further illustrated in the following screenshots.
  
-\\ **A WAN IP as Configured in FreshTomato 2021.8 and newer:**+\\ **A WAN MAC Address, as Configured in FreshTomato 2021.8 and newer:**
  
-{{:pasted:20220111-143100.png?1000}}\\  \\  \\+{{:pasted:20220111-143100.png?806x295}}\\  \\  \\
  
-**A WAN IP as Configured in FreshTomato 2021.7 and older:**+**A WAN MAC Address, as Configured in FreshTomato 2021.7 and earlier:**
  
 {{::mac_address-default-pre-2021.8.jpg}} {{::mac_address-default-pre-2021.8.jpg}}
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- Note for **FreshTomato 2021.7 and older: **picture shows the default MAC Address calculated and set by the GUI. FreshTomato initial MAC Address (after erase all data in NVRAM memory thorough) will be different. (Differences will be fixed with FT 2022.1 and newer)\\ 
  
  \\  \\
 +
 +For **FreshTomato 2021.7 and older: **the above image shows the default MAC Address calculated and set in the GUI. FreshTomato will initially display a dfifferent MAC Address (after an "erase all data in NVRAM memory thorough" has been done). The discrepancy will be fixed in release FT 2022.1 .\\
  
 **WAN Port:** In this field, you can enter any valid MAC Address to be assigned to the WAN interface. **WAN Port:** In this field, you can enter any valid MAC Address to be assigned to the WAN interface.
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  \\  \\
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 ===== MAC Address Notes ===== ===== MAC Address Notes =====
advanced-mac.1645022880.txt.gz · Last modified: 2022/02/16 14:48 by hogwild