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HP 2810 Vyatta and ESX Vlan Trunking

Posted on 2011-09-15
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Last Modified: 2012-05-12
Hello everyone...

Having a bit of an odd issue that I just cant seem to figure out.

I have an HP 2810 switch with (4) trunks connected to (4) ESX ports.

They are set up as (4) non LACP trunks that are plugged in to the host.

On the host I have a Vyatta router with (5) interfaces that are connected to (5) Port groups (VLANS)

These trunks are set up as follows:

Default VLAN (1) Untagged
VLAN 10 Tagged
VLAN 20 Tagged, etc..

This is all set up in the host using VSwitch 2.

There are various VMs with nics assigned to port groups (10, 20 etc.) along with each interface of the router.

The Vyatta router is pointing to the gateway outside of the network and has the appropriate route back into the router to get access to the VMs back on the LAN.

Routing works and VMs have access to all the subnets and such.. All is good..

However, I wanted to be able to take a physical machine, tag its port to a corresponding VLAN on the physical switch and share the collision space with the VMs.

While the VMs can get out and back no problem, when i try to drop a physical machine on the subnet and VLAN, it wont see the router gateway.

Is there some sort of limitation that i am not aware of?

I am not an expert with Vyatta but it has been reasonably easy to set up and is not doing anything but routing.

So its set up like this:

                                        -------------Phy Machine 1 --------------
                                                          10.10.10.101
                                                                     |
                                                                     |  Port on switch
                                                                     |  VLAN 1 (Native), VLAN 20 Tagged
                                                                     |
                                               --------------2810--------------
                                                                    |
                                                                    | TRUNK VLAN1, 10, 20 Tagged
                                               -------------ESX----------------
                                                                    |
                                                                    |
                                                    VSwitch Port Groups

                                         Native    |        10               |            20           |                                
                                  -----------------------------------------------------------------
      Vyatta Int 10.1                                     |  Vyatta Int 20.1     |
          ----------------------------------------------                                |              
          |                            ----------------------------------------------
          |                            |
          |                            |
      VM1                      VM2
10.10.10.100          10.10.20.100                    


VM1 can see VM 2 and can see any machines reachable in the routing tables.

Phy Machine 1 Cannot see anything and nothing can see it. (not even the 10.1 interface on the Vyatta router.

The way i was thinking was that with the Vyatta router and its interfaces on the VSwitch trunked up with the 2810, that all of its interfaces would be in the same collision space as the physical machines.

The only way they can talk to each other is if i move all the interfaces into the native port group. Then everything sees everything as it should.

Not sure what Im doing wrong here but i could use some assistance.

Much appreciated!

Best
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Question by:pacman_d
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Author Comment

by:pacman_d
ID: 36547256
Added note,

I also wanted to serve up DHCP off of a physical machine on the native VLAn and have its port tagged up with all the VLANs i want to serve addresses to.

Maybe something to do with trunking possibly.

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Accepted Solution

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pacman_d earned 0 total points
ID: 36559543
Too many experts looking for the easy points I guess.

Figured it out my self, as it increasingly seems to be the case lately.

Hard to understand why I am paying when it is becoming easier to find answers on the boards.
I am a long time customer of EE.

PAQ me please..

Thanks...
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