Re: esxi and freebsd vlans

[Sebastiaan van Erk]

Hi,

Michael K. Smith - Adhost wrote:

Hello Sebastian:
--------

Hi,



I made 2 test installs with the following interface configuration:

test1:
ifconfig em0 inet 10.10.10.1 netmask 255.255.255.0
ifconfig vlan create
ifconfig vlan0 inet 192.168.1.1 netmask 255.255.255.0 vlan 22 vlandev
em0

test2:
ifconfig em0 inet 10.10.10.2 netmask 255.255.255.0
ifconfig vlan create
ifconfig vlan0 inet 192.168.1.2 netmask 255.255.255.0 vlan 22 vlandev
em0

I can ping the other machine using the 10.10.10.x IP address no problem,

but the 192.168.1.x addresses don't work. I've tried setting the vlan id



--------

You will need to make sure the switchport facing your server is set to
802.1Q trunk and has VLAN 22 allowed.  The IP address on em0 itself is
"untagged" so it will work regardless of the port settings on the
switch. VLAN 22 has the 4-byte header attached so the other side has to
recognize the tag.

I ran into the ESXi limit of 4 NICs per VM, so I figured I would work around this using FreeBSD's vlan devices. on the vSwitch to none and to 22, but in neither of the two cases does it work. [Michael K. Smith - Adhost]

Your reply inspired me to google 802.1Q and ESXi, and I found a document describing different VLAN solutions on ESXi (http://www.vmware.com/pdf/esx3_vlan_wp.pdf). In this document it says that to make guest tagging work I have to set the VLAN ID of the port group on the virtual switch to 4095. After I did this, the above configuration works.

Regards,

Mike

Regards,
Sebastiaan

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