IP Obfuscation for Guest VLAN

Solved
Vaibhav_Vishnoi
Here to help

IP Obfuscation for Guest VLAN

Hi Experts - need your advice on following situation. 

 

We need to create a GUEST VLAN in our Meraki Setup, and my project manager requesting if we can obfuscate the public IP for Guest users. 

 

Is there a possibility with a setup where we have only Meraki MS Switch and Meraki WAPs .. uplink firewall is not from meraki. 

 

Please let me know.  

1 Accepted Solution
Brash
Kind of a big deal
Kind of a big deal

There's really no way to do this with the Meraki gear.

Users will always be able to lookup their public IP address by going to a page like Instant IP Address Lookup (whatismyipaddress.com)

 

The only options that come to mind are:

  • Tunnel all traffic to a SaaS gateway/VPN (Cisco Umbrella, ZScaler, Cloudflare etc.) so that their public IP is what will show, not your one.
  • ISP configured CG-NAT, in which your outbound IP address will actually be a private IP NAT'd to the ISP's public IP.

 

That being said, I don't think either of these options are justifiable for that specific purpose alone.

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4 Replies 4
alemabrahao
Kind of a big deal

What do you mean with obfuscation? Could you please explain it better?

I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.

Please, if this post was useful, leave your kudos and mark it as solved.
Brash
Kind of a big deal
Kind of a big deal

There's really no way to do this with the Meraki gear.

Users will always be able to lookup their public IP address by going to a page like Instant IP Address Lookup (whatismyipaddress.com)

 

The only options that come to mind are:

  • Tunnel all traffic to a SaaS gateway/VPN (Cisco Umbrella, ZScaler, Cloudflare etc.) so that their public IP is what will show, not your one.
  • ISP configured CG-NAT, in which your outbound IP address will actually be a private IP NAT'd to the ISP's public IP.

 

That being said, I don't think either of these options are justifiable for that specific purpose alone.

Vaibhav_Vishnoi
Here to help

Thanks Brash - You are correct, I have done Obfuscation using the mentioned options. Was just wondering if Meraki has any magical feature. Thanks so much for the time and updating the answer. Much Appreciated. 

TBHPTL
A model citizen

Why does a project manager have any say at all.😁  Foe what reason would you want to hide their egress point to the Internet? If the circuit is also used for your corporate /business traffic then you are far better served installing a local Internet egress circuit on an MX or some other gateway that serves GUESTS only, IMO

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