VMware vSphere

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  • 1.  Relationship between VMK and VMNIC

    Posted Jan 06, 2016 04:24 PM

    Hi Guys,

    From what i know VMK is a virtual interface for kernel services and VMNIC means the ESXi physical interface.

    I did below configuration then I confused:

    1. setup new esxi server, select 1st physical interface as management interface (192.168.1.1)
    2. setup vcenter and testing VMs using VSS (192.168.1.x subent)
    3. migrate VSS to VDS
    4. VMK0 ip becomes 192.168.1.1 and VMNIC0 seems obtained a IP from my DHCP server.

    I want to know why this happened and if it's a correct behavior.

    Thanks!



  • 2.  RE: Relationship between VMK and VMNIC
    Best Answer

    Posted Jan 06, 2016 05:04 PM

    No matter which physical interface (vmnic) you select, the IP address is assigned to the VMkernel port (vmk). The vmnics are basically only uplinks from the vSwitch to the physical switch(es). Think of it as connecting two physical switches. You wouldn't assign IP addresses to interconnects, would you?

    André



  • 3.  RE: Relationship between VMK and VMNIC

    Posted Jan 07, 2016 01:09 AM

    Yes, but why there is a section call "vmnic observed ip ranges" and what is used for?

    I know which part goes wrong, it's due to my lab traffic the observed ip range only show 1 ip address. it makes me think that the ip is for vmnic.

    Observed IP range does not show network in ESX or ESXi (1006744)

    Thanks !