vlan and routing setup help

[ahilan.somalingam1]

I have been asked to help a customer with his following request:

"I have a Cisco SG300-10PP switch connected to 4 Axis IP cameras, which I use for home security, and a Synology NAS drive. It works fine, but I want to use it in 'Layer 3' so that the CCTV activity doesn't have to go through my Virgin Media router, as I suspect it gets overloaded. I receive 'NAS storage disruption' messages from my cameras several times a day (eg when starting up a device). The other devices on the network include a PC, iMac, laptop, tablet and mobiles. I have given all the devices that need them static IP addresses"

I never setup anything with small business switches and need help how to set it up using the GUI version. My plan is as follows:

1. Backup

2. Check whether this is Layer 2 or Layer 3 Switch

3. Create 2 VLANs (one for CCTV, other one for his PC, iMac, laptop, tablet and mobiles)

4. Associate ports to VLANs

5. Set ip address

6. Create routing

7. Back out if fails.

Anything else I have to look into? And how to do it? I am creating document on what to do when I go there tomorrow. Please help.

Kind Regards

Ahilan

[Philip D'Ath]

With your current config - why would CCTV traffic go through your Virgin media router?  If the cameras and NAS are all plugged into the switch and they only talk to each other the traffic should not leave the switch.

[ahilan.somalingam1]

Hi Philip,

This is the way the customer set it up at the moment. I have no idea about the CCTV setup. I'll check this while I am there tomorrow.

thanks 

Ahilan

[devils_advocate]

Assuming the CCTV Cameras are writing to the NAS and the switch is in fact Layer 2 then I don't see how the data could be going via the Virgin Media Router.

Bear in mind that converting the SG switches from Layer 2 to Layer 3 completely wipes their configuration so you will have to configure again from scratch, literally as if you had a brand new switch.

Unless I am missing something, I really don't see how the traffic could be going via the router.

If the switch is Layer 2 only then the Cameras should be able to communicate with the NAS without bothering the router, they will talk at Layer 2. 

You also need to be aware that the SG series does not perform NAT so the Virgin media router needs to be capable of doing Static routes if you want both new Vlans to be able to access the internet. 

[ahilan.somalingam1]

Hi,

I haven't seen the setup yet. Thanks for the info regarding switching over from level 2 to 3 . As you said I think he set it as the CCTV Cameras are writing to the NAS because he said that these has to be on the same vlan. I need to check his current setting to see what is causing the issue, may be the NAS setup is causing the trouble rather than network issue.

thanks

Ahilan