3 ms·
> MACs can't be spoofed lol 20 years ago, in college, some folks in the dorm had fun fucking with others at the Ethernet level. Most of us only had experience
by AceJohnny2 7y ago
> MACs can't be spoofed
lol
20 years ago, in college, some folks in the dorm had fun fucking with others at the Ethernet level. Most of us only had experience with the IP level, so couldn't understand what was going on.
- swinglock 7y agoZeroTier doesn't permit spoofed MACs unless explicitly configured.
- AceJohnny2 7y agoand how can they tell?
- api 7y agoMACs are computed directly from cryptographic hashes. For normal ZeroTier P2P traffic the MAC and Ethernet header are elided entirely too, which saves about 14 bytes of per-frame overhead.
- AceJohnny2 7y agoWait, are we talking about MAC as in cryptographic Message Authentication Code, or MAC as in ethernet Medium Access Control (addresses)?
- api 7y agoMAC as in 48-bit Ethernet addresses. https://github.com/zerotier/ZeroTierOne/blob/master/node/MAC.hpp#L137 https://github.com/zerotier/ZeroTierOne/blob/master/node/MAC... There's a tiny chance of a collision, but for it to be meaningful you'd have to have a virtual LAN with millions of devices on it.