Re: [MacGroup] another Who's on my WiFi question

[Jonathan Fletcher]

Harry, 

Are you sure the router is telling you its _WIFI_ MAC address or is it giving 
you a _LAN_ port address?

Jonathan




> On Aug 6, 2017, at 12:33 PM, Harry Jacobson-Beyer  wrote:
> 
> Do you know why my Router’s Mac Address printed on the router ends in 9c but 
> in the App it says the last two digits are 9D?

--
Jonathan Fletcher
jonat...@fletcherdata.com

Kentuckiana FileMaker Developers Group
Next Meeting: 8/22/17


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Re: [MacGroup] another Who's on my WiFi question

[Lee Larson]

On Aug 6, 2017, at 12:33 PM, Harry Jacobson-Beyer  wrote:

> Do you know why my Router’s Mac Address printed on the router ends in 9c but 
> in the App it says the last two digits are 9D?


Every network interface has its own MAC address. The address on the label is 
probably the WAN address and the address you’re seeing is the LAN address. The 
WAN (wide area network) address is the ethernet address seen by the outside 
world. The LAN (local area network) address is the one seen inside your house. 
There’s probably yet another LAN address because the router likely has both 
WiFi and Ethernet interfaces for the LAN.

Of course, it’s quite easy to change the advertised MAC address on most 
machines. For example on MacOS you can change it to whatever you want with the 
terminal command

sudo ifconfig en0 ether whatever

where ‘whatever’ is the address you want; e.g., 78:4f:63:12:34:56. This will 
stick until you either reboot or change it to something else. (The eth0 might 
be eth1, if you have a wired connection.)

L^2

---
‌Lee Larson‌
‌leelar...@me.com‌

‌Putting a monkey wrench in machinery is often the only way to force somebody 
to repair, replace, or redesign the machinery. Especially legal or social 
machinery. ‌— Larry Niven
‌World of Ptavvs‌

‌‌‌








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Re: [MacGroup] another Who's on my WiFi question

[Harry Jacobson-Beyer]

Thanks Lee,

Do you know why my Router’s Mac Address printed on the router ends in 9c but in 
the App it says the last two digits are 9D?


> On Aug 6, 2017, at 12:23 PM, Lee Larson  wrote:
> 
> 
>> On Aug 6, 2017, at 11:21 AM, Harry Jacobson-Beyer > > wrote:
>> 
>> I’ve identified all of my devices on my network in Who’s on my Wifi.
>> 
>> I have one device I can’t identify. In safari I entered the ip address for 
>> my router (ATT Uverse router). 
>> 
>> Searching through the router I found the Mac Address I can’t identify in 
>> Who’s on my WiFi and it’s labeled “Local Host.
>> 
>> Can someone please explain what this means?
> 
> On most operating systems localhost is the internal network address of the 
> local computer. It usually lives at ip 127.0.0.1 in IPv4 and ::1 in IPv6. 
> Your router is probably running some form of Linux (most do), so you inherit 
> the standard Linux localhost. (Actually, in IPv4, any address starting with 
> 127 will resolve to localhost.)
> 
> The localhost address is used internally by the operating system to talk to 
> itself via what’s called the loopback interface.
> 
> L^2
> 
> ---
> ‌Lee Larson‌
> ‌leelar...@me.com ‌
> 
> ‌How often have I said to you that when you have eliminated the impossible, 
> whatever remains,however improbable, must be the truth? ‌— Sherlock Holmes
> ‌The Sign of Four‌
> 
> ‌‌‌
> 
> 
> 
> 
> 
> 
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Re: [MacGroup] another Who's on my WiFi question

[Lee Larson]

> On Aug 6, 2017, at 11:21 AM, Harry Jacobson-Beyer  > wrote:
> 
> I’ve identified all of my devices on my network in Who’s on my Wifi.
> 
> I have one device I can’t identify. In safari I entered the ip address for my 
> router (ATT Uverse router).
> 
> Searching through the router I found the Mac Address I can’t identify in 
> Who’s on my WiFi and it’s labeled “Local Host.
> 
> Can someone please explain what this means?

On most operating systems localhost is the internal network address of the 
local computer. It usually lives at ip 127.0.0.1 in IPv4 and ::1 in IPv6. Your 
router is probably running some form of Linux (most do), so you inherit the 
standard Linux localhost. (Actually, in IPv4, any address starting with 127 
will resolve to localhost.)

The localhost address is used internally by the operating system to talk to 
itself via what’s called the loopback interface.

L^2

---
‌Lee Larson‌
‌leelar...@me.com ‌

‌How often have I said to you that when you have eliminated the impossible, 
whatever remains,however improbable, must be the truth? ‌— Sherlock Holmes
‌The Sign of Four‌

‌‌‌








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