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Invalid MAC Address message ?
twlamkin1
Enthusiast - Level 2
‎02-17-2014 08:21 AM

I'm trying to configure my Verizon firewall, which is MAC address authenticating, to allow a new machine.  It's an older Windows Vista machine, and I obtain the MAC via IPCONFIG /ALL.  I take the MAC's I see there and try to enter them into the Firewall config section of the router config, and it says "Invalid MAC Address" ?  What's going on here?!

BTW, I already have about 8 machines configured and working just fine.

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Re: Invalid MAC Address message ?
twlamkin1
Enthusiast - Level 2
‎02-17-2014 08:30 AM

sorry, needed to use : instead of -.

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Re: Invalid MAC Address message ?
twlamkin1
Enthusiast - Level 2
‎02-17-2014 08:30 AM

sorry, needed to use : instead of -.

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Re: Invalid MAC Address message ?
dslr595148
Community Leader
Community Leader
‎02-18-2014 12:28 PM

While I see you solved your issue, there is a (or are) problem(s) to be aware of.

#1 MAC Address(es) are always sent in clear regarless if the type of encryption.

#2 Since it is possible to spoof/clone a MAC Address on a router (for example as shown at http://ui.linksys.com/files/E4200/2.0.25/wanmac.html ) it is also possible to spoof/clone the MAC Address on a computer.

#3 If someone does not know how to spoof/clone the MAC Address on their computer if you do not use wireless encryption (WEP, WPA, WPA2) to protect your wireless network, that someone can still see your traffic.

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