not working on type-c adapter

[ygowill]

environment：
Macbook Pro(M1 pro)
macOS Monterey (12.1)

and here's the output:

[acrogenesis]

Try turning off en9 first. What device is en9?

[ygowill]

en9 is a type-c hub, which uses realtek rtl8153b as ethernet controller

I don't know how to turn it off. If I unplug it,there's a interface not exist error

If I use sudo ifconfig en9 down, there's a invalid argument error

[akswalia23]

any update?

[pich4ya]

we are doom!

[acrogenesis]

I've tried several workarounds, but I haven't been able to solve it. Has anyone had better luck?

[barrett092]

nope

[michaeldonnelly]

I've had the same issue with the same chipset.

In case it was specific to that MAC address, I tried assigning a random address with macchanger:

donnelly@lucky ~ % macchanger -r en4
ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address
ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address
ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address
ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address
ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address
ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address
ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address
^C/opt/homebrew/bin/macchanger:63:in `system': Interrupt
	from /opt/homebrew/bin/macchanger:63:in `set'
	from /opt/homebrew/bin/macchanger:54:in `random'
	from /opt/homebrew/bin/macchanger:57:in `random'
	from /opt/homebrew/bin/macchanger:57:in `random'
	from /opt/homebrew/bin/macchanger:57:in `random'
	from /opt/homebrew/bin/macchanger:57:in `random'
	from /opt/homebrew/bin/macchanger:57:in `random'
	from /opt/homebrew/bin/macchanger:57:in `random'
	from /opt/homebrew/bin/macchanger:57:in `random'
	from /opt/homebrew/bin/macchanger:73:in `start'
	from /opt/homebrew/bin/macchanger:94:in `<main>'

Environment
MacBook Air(M2, 2022)
macOS 12.6 (21G115)

Network Adapter

USB 10/100/1000 LAN:
  Product ID:	0x8153
  Vendor ID:	0x0bda  (Realtek Semiconductor Corp.)
  Version:	30.00
  Serial Number:	000001
  Speed:	Up to 5 Gb/s
  Manufacturer:	Realtek
  Location ID:	0x00200000 / 1
  Current Available (mA):	900
  Current Required (mA):	288
  Extra Operating Current (mA):	0

[yenjuu]

Got the same issue here :(
Any updates?

[ASolod82]

The same issue with the same adapter on MacOS 14.5 :(

[barkink]

I found way around since Monterey is not allowing to change ethernet's mac address. You have to create bridge interface and attach the Ethernet you wanna change the mac address to this new bridge interface. Then while you are disconnected same command but this time with bridge interface name like bridge0 will be used and voila! I am sure it is working because it is getting the correct IP address for the specific mac address after this.

After this step, click + sign at the left bottom on the popup screen

Now this is before

And this is after the command

[gloomytime]

I found way around since Monterey is not allowing to change ethernet's mac address. You have to create bridge interface and attach the Ethernet you wanna change the mac address to this new bridge interface. Then while you are disconnected same command but this time with bridge interface name like bridge0 will be used and voila! I am sure it is working because it is getting the correct IP address for the specific mac address after this.

After this step, click + sign at the left bottom on the popup screen 

Now this is before

And this is after the command

You are a genius.I love you!