Guest User!

You are not Sophos Staff.

Thread Info
  • State Verified Answer
  • Locked Locked
  • Replies 3 replies
  • Subscribers 4 subscribers
  • Views 7527 views
  • Users 0 members are here
Options
Suggested
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

How to change external interface MAC address ?

DavidMONDON

Hello,

 

I'm using the free SW version of UTM 9.

I've been using it for years, connected behind my DSL router (provided by my ISP)

 

I will soon be connected to FTTH and I would like to connect the UTM directly to the Fiber box (with an eth cable) without using my new ISP box.

 

To that purpose I need to clone the ISP box eth MAC address into my UTM external NIC MAC address.

 

Can I use the Virtual MAC option in the UTM UI ?

 

 

my search on the forum led me to several topics but they are quite old and my not apply to the current versions of UTM.

 

Here's my NIC info:

Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller

 

(I have several other NIC I can use with different chipsets if required, although it seems to be quite painful; to change a NIC in the SW version ...)

 Thank you !



This thread was automatically locked due to age.
Parents
  • +1

    Hello David,

    you got the correct setting. BUT if Virtual MAC works or not depends on the used NIC / driver implementation. It' s only guaranteed to work with Sophos Appliances, I think.

    Best

    Alex

    -

  • 0 in reply to Alexander Busch

    Thank you Alexander.

     

    if I wanted to try ahead, is there any way to see if it works like below:

     

    1- set the Virtual MAC

    2- reboot

    3- run ifconfig locally

     

    Or

    3 - ping the UTM, then run ARP -A to check the MAC discovered

     

    Also, would the Virtual IP replace the HW MAC or would the NIC report both ?

     

    Worst case scenario I can install an HP NC7170 card (Intel 82546EB)....

Reply
  • 0 in reply to Alexander Busch

    Thank you Alexander.

     

    if I wanted to try ahead, is there any way to see if it works like below:

     

    1- set the Virtual MAC

    2- reboot

    3- run ifconfig locally

     

    Or

    3 - ping the UTM, then run ARP -A to check the MAC discovered

     

    Also, would the Virtual IP replace the HW MAC or would the NIC report both ?

     

    Worst case scenario I can install an HP NC7170 card (Intel 82546EB)....

Children
Share Feedback
×

Submitted a Tech Support Case lately from the Support Portal?