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#SECURE WIFI NETWORK MAC ADDRESS FILTERING BABY MONITOR SNUG PC#
#SECURE WIFI NETWORK MAC ADDRESS FILTERING BABY MONITOR SNUG WINDOWS#

Configure his network interface to use one of those MAC addresses.Sniff the network and look at the MAC addresses which are allowed access to the Wifi.So, let’s say a somewhat knowledgeable hacker is interested in accessing your WiFi hotspot, on which you have MAC address filtering turned on. He or she need only do two things: Your data is encrypted, of course, but the MAC address is not. It can’t be, as it’s required to tell the computers involved which computer is supposed to receive the packet. Even if you specify WPA2 encryption on your wireless connection, the MAC address itself is not encrypted.

The MAC address itself is never encrypted.

It’s easy, then, to configure two network adapters with the same MAC address. Many network interfaces now come with a default MAC address, but also allow you to manually configure a different MAC address. If your data is unencrypted, that data remains visible to whoever might be in range. Restricting your wireless router’s access to certain MAC addresses does not prevent your data from being sniffed.

MAC address filtering does not encrypt.

I’ve used “theoretically” and “in theory” a couple of times above, because there are some inconvenient facts that cause those theories and some assumptions to fall down.

#SECURE WIFI NETWORK MAC ADDRESS FILTERING BABY MONITOR SNUG WINDOWS#

You collect the MAC addresses from all your laptops, for example (available via the “ipconfig /all” command in the Windows Command prompt) and then enter them into your router’s “allowed addresses” list, and you should be secure. If you know the MAC address of every computer you want to allow to connect to your network, many routers – particularly wireless routers – allow you to restrict access to only those MAC addresses you specify. The MAC address is how packets of data identify which piece of networking equipment they need to be sent to next, as the packet makes its way to its final destination. The MAC address uniquely identifies every machine, and in fact, every piece of equipment on your network. So, for example, if you move a network adapter from one machine to another, the MAC address moves with it. MAC addresses are assigned at the hardware level. And as I said, they are all supposed to be different – the ethernet port on my desktop machine has a different MAC address than the ethernet port on my laptop, which is different than the ethernet port on the server running in my basement.Įven two otherwise identical network adapters should have different MAC addresses.

#SECURE WIFI NETWORK MAC ADDRESS FILTERING BABY MONITOR SNUG PC#

It’ll certainly keep the casual or accidental connection from happening, which is fine as far as that goes but for true security, it’s actually pretty close to not having any at all.Ī MAC, or “Media Access Control” address, is a theoretically unique identifier assigned to every network interface card (often referred to as a “ NIC”, or network adapter).Įvery ethernet port on your PC 1, every wireless adapter, and even every Firewire or USB connection that might also be used for networking, is assigned a MAC address. At first, it sounded kind of intriguing, but ultimately it turns out to be kind of like a cheap padlock: it only keeps honest people honest. I do hear about MAC address filtering from time to time.