topic Re: how to manually change mac address in vmx file? [VM WORKSTATION] in VMware Workstation Pro Discussions

how to manually change mac address in vmx file? [VM WORKSTATION]

sonatta09 — Wed, 01 Nov 2023 18:27:47 GMT

im trying to clone a suspended state vm. by copy pasting it, (for some work stuff reason i need a clone of suspended vm state, bcoz restarting it will gonna make my progression to my work stuff back to zero. so cloning normally is not my option xD)

however when i run them both, only 1vm internet connection is working, the other vm internet has no connection. i assume bcoz they have same mac so only 1 internet can exist in a time?

i tried editing vmx file

ethernet0.address = "B1:20:36:3A:54:7B" into random mac. but still cant connect to internet

i hope you guys help me thank you

Re: how to manually change mac address in vmx file? [VM WORKSTATION]

RDPetruska — Wed, 01 Nov 2023 18:29:05 GMT

You need to keep the first 3 numbers the same, as that is VMware's assigned vendor.

Re: how to manually change mac address in vmx file? [VM WORKSTATION]

MerlevedeN — Wed, 01 Nov 2023 19:27:43 GMT

Hi, Maybe this doc can help changing the mac address.

https://docs.vmware.com/en/VMware-Workstation-Pro/17/com.vmware.ws.using.doc/GUID-495D93E9-06B3-43A7-9B1F-33822B42F429.html

For example: ethernet[n].address = 00:50:56:XX:YY:ZZ

In this line, the fourth pair of numbers, XX, must be a valid hexadecimal number between 00h and 3Fh, and YY and ZZ must be valid hexadecimal numbers between 00h and FFh. You must use this format. Workstation Pro virtual machines do not support arbitrary MAC addresses.

A value for XX:YY:ZZ that is unique among your hard-coded addresses avoids conflicts between the automatically assigned MAC addresses and the manually assigned addresses.

Re: how to manually change mac address in vmx file? [VM WORKSTATION]

sonatta09 — Wed, 01 Nov 2023 20:08:53 GMT

hi i already tried different mac like this

00:50:56:2F:5A:B7 but still cannot connect in internet

im not quite sure if this is really mac address issue or something else that causing my copy pasted suspended vm to unable to connect in internet

any idea?

Re: how to manually change mac address in vmx file? [VM WORKSTATION]

RDPetruska — Wed, 01 Nov 2023 20:11:09 GMT

If it's a Windows VM, have you run NewSID to change the SID?

Re: how to manually change mac address in vmx file? [VM WORKSTATION]

sonatta09 — Wed, 01 Nov 2023 20:21:22 GMT

newSID? how to do that? sorry

yes im using windows10 vm

what i only done so far is copy-paste the whole vm folder

Re: how to manually change mac address in vmx file? [VM WORKSTATION]

MerlevedeN — Fri, 03 Nov 2023 09:26:37 GMT

did you already tried to remove the network adapter and add a new one?

Re: how to manually change mac address in vmx file? [VM WORKSTATION]

a_p_ — Fri, 03 Nov 2023 09:43:57 GMT

Can you confirm that - in addition to the MAC address - you also have

ethernet0.addressType = "static"

in the .vmx file? This entry gets automatically created when you edit the MAC address from the GUI.

Does the modified MAC address show up in the guest operation system's network settings?

André