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3 Replies Last post: Oct 30, 2008 12:35 PM by Anthony Siano  
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Tri Tran
3 posts since
Oct 13, 2008

Oct 28, 2008 1:40 AM

ESXi with multiple networks


Hi,

I have a server, switch and router for training purpose. If I install 2 (or more) virtual machines with different networks config, how can i have connection between them. I know router on the stick and VLAN but the real network connection go to the switch via one single port so I cannot VLAN the switch.

Any idea or discussion welcome.

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Anthony Siano
3 posts since
Aug 22, 2008
1. Oct 28, 2008 2:19 PM in response to: Tri Tran
Re: ESXi with multiple networks
Your question is a little confusing on the wording, but I think this is what you want...

Instead of port-based VLANs, use 802.1Q (VLAN tagging) and then you can have as many VLANs on a single NIC and switchport as you want. I'm sure this is what you are looking to do.

Your switches and NIC need to support "dot1q" but you shouldn't have a problem with modern hardware.

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Tri Tran
3 posts since
Oct 13, 2008
2. Oct 28, 2008 11:40 PM in response to: Anthony Siano
Re: ESXi with multiple networks

Sound very close to what I need, just one more bit of info, do I need to do anything (tagging) with the NIC on ESXi server or it come standard. The server is quite new, G4.

I haven't touch networking for a while but the 802.1Q is like VOIP port isn't it, so it can have the PC and VoIP phone coexist on one same port.


Thanks

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Anthony Siano
3 posts since
Aug 22, 2008
3. Oct 30, 2008 12:35 PM in response to: Tri Tran
Re: ESXi with multiple networks

That is one of the most popular uses for it, yes, so that the VOIP VLAN(s) and the data VLAN can be available on the same NIC.

As long as your switch and NIC support it, you just setup your vSwitches in ESX/ESXi with the VLAN ID you want it to be associated with and that should be it.

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