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A Media Access Control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment.

1 vote

SSL: MAC address tampering detecting?

TLS protects the application data only. It neither protects nor detects changes in the lower layers, i.e. neither TCP ports, nor IP addresses, nor MAC addresses. This would also not make much sense si …
Steffen Ullrich's user avatar
3 votes
Accepted

Static MAC address on Switches and routers

Assigning a specific MAC address to a specific port guarantees that only a device with this MAC address will get connectivity on this port. This policy is usually done in combination with monitoring t …
Steffen Ullrich's user avatar
2 votes

why MAC address can not be used as session identifier instead of session ID?

The MAC address is an identification of the specific network card at layer 2 (data-link layer). It stays only constant within the local network where no routers are involved. Once the traffic crosses …
Steffen Ullrich's user avatar
4 votes
Accepted

Why are USPS, the Washington Post, Oracle, and MailChimp blocking our home network from acce...

All of these sites are behind the Akamai CDN. The message and code indicates that your cite was blocked by Akamai. As for why Akamai might have done this see Why is Akamai blocking me?. Notably it mig …
Steffen Ullrich's user avatar
2 votes
Accepted

Can attackers be traced if they used public WiFi

Every user leaves a lot of traces independent of their IP address. If you access web sites they store cookies, do browser fingerprinting etc. If you move from network to network the IP changes, but th …
Steffen Ullrich's user avatar
4 votes

How to get client MAC address using Angular JS?

You cannot get the MAC address from the machine where the browser is running on by executing Javascript (and thus also Angular.js) inside the browser. Access to this information is restricted due to t …
Steffen Ullrich's user avatar
2 votes

Tracing the email's MAC address

TL;DR: it is not possible what you want. Can someone trace the MAC address of an email ... An email does not have a MAC address in the first place. If you mean the MAC address of the computer from w …
Steffen Ullrich's user avatar
1 vote

Would it be possible to create an external mac address spoofer?

This is called a layer 3 bridge. It can be done with common hardware and a common OS like Linux. All what it is needed is a hardware with two network cards and to configure the OS as a layer 3 bridge. …
Steffen Ullrich's user avatar
3 votes
Accepted

How to find the IP address of a wifi router while I have it's MAC address?

WLAN is in the OSI-Model at layer 2 while IP is at layer 3. You need to first have full access to the layer 2 before you can get the information from layer 3. This means that for a WLAN without encryp …
Steffen Ullrich's user avatar