VLAN STACKING

I have two sites: the datacenter and the HQ Office. All traffic from the HQ office goes to the Datacenter. This includes the internet. There is current two VLAN: VLAN 50 from datacenter going out to the internet and VLAN 120 for communication between the HQ and Datacenter.

I have a need for setting up a separate network at the HQ office that ONLY need internet access. I need this new network to be totally separate from the existing network. I have to use the existing VLAN 120 between HQ and Datacenter, and I was thinking about doing VLAN stacking. I have Netgear GS724TS switches. Is it possible to do VLAN stacking or is there another way that I can set up another network that has no access to the servers at the datacenter and only has access to the internet.

I am using SonicWalll for routing.
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Thomas_RoesCommented:
i'm afraid you can't use VLAN's inside VLAN's. Unless you have can get multiple VLAN's to connect your datacenter to your site, you will have to set up a VPN for this.

I'm not a Sonicwall expert, but I think (depending on the model) it should be possible to have this VPN tunnel connect to separate VLAN's at each end of the tunnel.

Thomas Roes
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ESParteeAuthor Commented:
I think you can do Q in Q tunneling/VLAN stacking on Cisco switches? Can I do this on Netgear Smart Switches also?
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OLY8892Commented:
Use ACL filter to deny TCP for HQ to datacenter network, then allow port 80 or IP any any.
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OLY8892Commented:
Yes you can use dot1q tagging on the netgear.
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Craig BeckCommented:
You can't do QinQ on the Netgear switches.
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ESParteeAuthor Commented:
What is dot1Q? is that another term for QinQ?
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OLY8892Commented:
dot1q tags the frame for transport to identify it.  But looking at the Netgear switch it does not support QinQ as craig states.
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ESParteeAuthor Commented:
Ideally, I would want to use another VLAN but I just ended up put that network another interface on the HQ firewall and created firewall rules.
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ESParteeAuthor Commented:
Solved by self
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