Hello,
I create a small AKS cluster and I saw that 2 nodes communicates through the same mac address "12:34:56:78:9a:bc", and this is why (https://social.msdn.microsoft.com/Forums/Lync/en-US/be3e4ab1-7b0e-42d0-82a6-08b640dd51c3/strange-quot123456789abcquot-ethernet-addresses?forum=WAVirtualMachinesVirtualNetwork). Even in the same subnet, the destination mac addr. is "12:34:56:78:9a:bc".
So my questions are: 1) I couldn't find it - Is there a place in official AKS documentation talking about this static mac "12:34:56:78:9a:bc" used in VNet?; 2) it is true to say that this happens in all AKS instances?
I ping from node 1 to node 2, and test in both instances (Standard_DS2_v2 and Standard B2s), and the behavior is the same.
From node 1 (10.240.0.4 - 00:0d:3a:59:76:13)
azureuser@aks-nodepool1-23965286-vmss000000:~$ arp -a | grep 10.240.0.35
aks-nodepool1-23965286-vmss000001.internal.cloudapp.net (10.240.0.35) at 12:34:56:78:9a:bc [ether] PERM on eth0
From node 2 (10.240.0.35 - 00:0d:3a:30:5c:2c)
azureuser@aks-nodepool1-23965286-vmss000001:~$ arp -a | grep 10.240.0.4
aks-nodepool1-23965286-vmss000000.internal.cloudapp.net (10.240.0.4) at 12:34:56:78:9a:bc [ether] PERM on eth0
I appreciate if somebody could help me, tks