From: lws4art@gmail.com   
      
   Bit Twister wrote:   
   > On Thu, 29 Jun 2023 23:26:57 -0400, Jonathan N. Little wrote:   
   >> Henry Crun wrote:   
      
      
      
   >>>   
   >>> Looking up d4:3d:7e:b6:ba:a8 I see vendor is Micro-Star Int'L Co.   
   >>   
   >> Which makes sense because it is an MSI motherboard. IIRC that was the   
   >> MAC address that I originally had the dhcp server trap to set the IP.   
   >>   
   >>>   
   >>> Looking up 1e:2b:ad:33:12:64 (three separate web sites) I get "No such   
   >>> vendor,  Locally administered addresses (LAA): the address is assigned   
   >>> to a device by a network administrator"   
   >>   
   >> Which is strange because last night it switched to this MAC:   
   >>   
   >> jonathan@kenny:~$ ip link show enp3s0   
   >> 2: enp3s0:  mtu 1500 qdisc fq_codel   
   >> state UP mode DEFAULT group default qlen 1000   
   >>     link/ether 1e:2b:ad:33:12:64 brd ff:ff:ff:ff:ff:ff permaddr   
   >> c6:51:bd:c3:b2:ab   
   >>   
   >> So the MAC is currently 1e:2b:ad:33:12:64. Now the above has a   
   >> "permaddr" value of c6:51:bd:c3:b2:ab. Googling seems to indicate   
   >> "permaddr" is present when overriding NIC's MAC by spoofing. 1) I am not   
   >> spoofing. 2) c6:51:bd:c3:b2:ab also has no vendor ID.   
   >>   
   >> So I when looking to see where|what could be overriding the MAC like so   
   >> legacy config since this system has been migrated over the years from   
   >> earlier versions of Ubuntu.   
      
      
      
   > I would try booting a live cd and checking just to have a second   
   > opinion about mac.   
   >   
      
   Duh! Great idea to eliminate any possible configuration issues...   
      
   Well, this is puzzling. The non-MSI vendor MAC "1e:2b:ad:33:12:64" is   
   showing here in the live session:   
      
   ubuntu@ubuntu:~$ ip link show enp3s0   
   2: enp3s0:  mtu 1500 qdisc fq_codel   
   state UP mode DEFAULT group default qlen 1000   
       link/ether 1e:2b:ad:33:12:64 brd ff:ff:ff:ff:ff:ff   
      
   Same as normal boot:   
      
   jonathan@kenny:~$ ip link show enp3s0   
   2: enp3s0:  mtu 1500 qdisc fq_codel   
   state UP mode DEFAULT group default qlen 1000   
       link/ether 1e:2b:ad:33:12:64 brd ff:ff:ff:ff:ff:ff permaddr   
   ee:a5:38:4c:ed:67   
      
   Only difference is the normal boot includes the permaddr parameter   
   ee:a5:38:4c:ed:67. Also strange is this permaddr parameter changed from   
   yesterday where it was "c6:51:bd:c3:b2:ab" not "ee:a5:38:4c:ed:67"   
      
   --   
   Take care,   
      
   Jonathan   
   -------------------   
   LITTLE WORKS STUDIO   
   http://www.LittleWorksStudio.com   
      
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