Question

VLANS for office network shared with two companies

Asked by: sgarson1

I am going to be sharing my office with a second company and would possibly want to share my network infrastructure, to some extent.

I would like do the following:

1. Share the same IP phone system, which uses a VLAN.  I am fine with all the phones on the same VLAN.

2. Share the network switches and allow them to only have access to the internet, not my company's server, printers or workstations.

Is it possible to do this?  I have a Sonicwall TZ-100 with their advanced OS and a Dell Power Connect 3424 switch.

Are there any suggestions on how to keep my machines separate but have the phones share the network?  Obviously the phones all have switch ports.  I can specify that their computers connect to different cables and switch ports.

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Asked On
2009-11-06 at 08:41:51ID24878425
Tags

VLANS

,

segmenting netwokr

Topics

Network Management

,

Miscellaneous Networking

,

Network Security

Participating Experts
2
Points
500
Comments
5

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Answers

 

by: Rick_O_ShayPosted on 2009-11-06 at 09:27:00ID: 25761096

I would make a new VLAN for the other companys devices and further isolate it from your own with filters or ACLs applied to that VLAN.

 

by: sgarson1Posted on 2009-11-06 at 10:03:02ID: 25761396

Rick:

Do you know if the Sonicwall supports ACLs?

 

by: Rick_O_ShayPosted on 2009-11-06 at 11:54:52ID: 25762472

Sorry, I don't.

 

by: Rick_O_ShayPosted on 2009-11-06 at 11:58:06ID: 25762498

I was thinking you could do that filtering at the switch coming into the VLAN itself.

 

by: BigBadWoofPosted on 2009-11-09 at 21:50:29ID: 25782714

Another VLan would be the way to go, but I'm not that familiar with your hardware.

Had a quick look at your firewall and it says it has 5 configurable interfaces.  Configure another interface on another subnet with a rule preventing it from accessing your other subnet and run a separate switch from that interface to the new company's PCs.

The phones would just be plugged into the normal Vlan so you would have 1 cable for the PC and one for the phone.

If you are trying to use the one switch then sorry, I'm not much help with that hardware :(

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