Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [mac-address]

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

0
votes
1answer
75 views

Could my pc's mac address be guessed and thereby stored by websites? [duplicate]

If I don't use a vpn, should I disable IPv6 to avoid my pc's mac address be guessed ? While paying online, once I saw a bill that included my IPv6, should I be concerned at all?
0
votes
1answer
48 views

MAC randomization for Bluetooth?

Companies, governments, etc. can track Bluetooth and WiFi network scans passively by looking at a same MAC address over space and time (Bluetooth/WiFi Identity tracking in public spaces - How to ...
0
votes
2answers
96 views

Why are USPS, the Washington Post, Oracle, and MailChimp blocking our home network from accessing their sites?

The problem seems to be that our home network is being blocked from high-profile sites that have really good security measures in place. For example, when I go to the Washington Post's website I get ...
0
votes
2answers
84 views

Logged into same network of residence, owner knows my Mac address.. what can they see? [closed]

Logged into same network of residence, owner knows my Mac address.. what can they see? They are techy and know my Mac address for my phone and PC. Can they see text message to and from me? My email? ...
2
votes
2answers
103 views

Can I see the MAC address of a router on an encrypted Wi-Fi network?

Say that I am within range of a Wi-Fi network that is encrypted using WPA2, but I don't know the password. Is it possible for me to learn the MAC address of the Wi-Fi router that is broadcasting the ...
-1
votes
0answers
14 views

How can I find out clients connected to a wifi network? [duplicate]

How can I find out clients (MAC addresses) that are connected to a wifi network (that my device is not connected to)? When I am connected to a wifi network, I can use tools like nmap or even ping to ...
2
votes
2answers
128 views

How does Gmail detect if my email account is accessed from another computer?

How does Gmail detect when my mail is accessed from another computer? Does it keep track of my MAC address to check whether a new device is used? I think it doesn't have anything to do with IP address....
1
vote
1answer
60 views

Is it enough to change only the MAC address of a VM to enhance anonimity?

I'm learning a bit about Kali linux, and I heard that it is a good practice to change the MAC address of your Kali VM so that no particular action can be traced to you (at the link level). However, as ...
2
votes
1answer
677 views

Use MAC Address to Identify Laptop Model? [closed]

Is it possible to use the first 6 characters (D8:9D:67) of a MAC address to learn the model/version of the device? For example, this MAC address belong to Hewlett Packard. But they manufacture ...
0
votes
2answers
90 views

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

why MAC address can not be used as session identifier instead of session ID? why the physical address (MAC address) cannot be used as a session identifier during the communications between servers ...
0
votes
0answers
55 views

Why do people redact MAC addresses? [duplicate]

What are the security implications of sharing a MAC address online? How important is it really, to redact this information; and why? I see it a lot, and I'm in the habit of doing it myself. 1. ...
-1
votes
2answers
45 views

Verify my scenario of Internet infrastructure security [closed]

I have read a bit about Internet infrastructure recently. I have figured out how the IT crimes are easy to cover and quite confident way to perform any attack without traces. I got suprised that is ...
-1
votes
1answer
265 views

Bypassing blacklisted MAC address filtering (that prevents certain MAC address to access router)

PROBLEM OVERVIEW I have a access to a large WLAN network (in a hostel); where lot of students have access to wifi password. So, to prevent sharing this password to others I used MAC address white-list ...
1
vote
1answer
626 views

Can Whatsapp be MAC spoofed if the victim's device isn't on the same local network as the hacker's device?

I realize that MAC addresses are only used to tell different devices apart if they are on the same local network. So, what if they're not? Is MAC spoofing in Whatsapp still possible? Even if the ...
0
votes
0answers
33 views

Does having a static ARP with a client offline cause a mac spoofing risk?

If you have all the IPs and MACs specified in /etc/ethers and one of the cilents specified goes offline, does that cause a risk that someone could spoof a mac address?
11
votes
3answers
4k views

Bypass MAC address internet time filtering? [closed]

My brother disabled my internet access for my devices from 10pm - 6am. The internet on his devices still work 24/7. I am still connected to the WiFi but there is no internet access because he did a ...
0
votes
3answers
108 views

Can an ISP see hostname of VirtualBox

I know ISP see the hostnames of devices connected to them Does ISP see the hostname of VirtualBox Machines ? Also do they see MAC address of Virtual Machines ?
3
votes
2answers
86 views

Am I supposed to find non-wifi devices in 802.11 frames of WPA2 encrypted wifi?

I recently tuned in on my access point to see what data is visible despite encryption. Am I supposed to find MAC addresses of my non-wifi clients in the 802.11 frames and is this part of the protocol ...
1
vote
2answers
359 views

Ettercap man in the middle - ARP poison

I am experimenting a bit with Ettercap in my local Wifi Lan. I have a router (R), my pc (P) with Ettercap running on it and my smarthphone (S). In particular am testing the ARP poison MIM attack and ...
1
vote
1answer
127 views

Hypothetical: if I wanted to swap my corp laptop for an exact replacement? [closed]

This is a thought problem. Not sure if appropriate for Info Sec or if better suited elsewhere, so I will respect the mod's decisions as far as remediation or removal. I love my corporate laptop. It's ...
1
vote
1answer
113 views

Can someone check internet usage using MAC Address [closed]

If I were to briefly connect to a network for like 2 mins would they be able to see everything i've browsed from my home network? If they knew my mac address? Sounds like a stupid question but am not ...
2
votes
2answers
86 views

Wireless network solution? WPA2/MAC Filtering problems

In short we have 7 Mobile Casio Scanners that seem to be incapable of holding their Wi-Fi passwords, they sometimes lose them for no apparent reason. We of course, cannot give out the wireless ...
-1
votes
1answer
381 views

Is obtaining Mac Address illegal? [closed]

Just wondering, in the US, if a retailer or restaurant wants to collect user's data through obtaining mac address, is it illegal?
2
votes
1answer
65 views

What are the real world risks of sharing your device and network information with advertisers?

I am trying to decide whether to keep this new fitness tracker that I bought for $70. Great deal - until I found out that I'm paying for it with my personal data. How risky is is to share MAC ...
1
vote
1answer
179 views

How can a network admin uniquely identify machines on their network?

My network admin might have a record of my default MAC address tied with some mischievous doings as well as my currently used address that they've likely collected after I started accessing using ...
0
votes
1answer
125 views

how can I know MAC ADRESSES connected to a given AP [windows]? [closed]

I think that the question is clear. I want to know the mac adresses of people connected to a certain wireless network. Thank you!
0
votes
0answers
267 views

Does the WiFi or Bluetooth device send a unique MAC address only in probe requests?

Is it possible to intercept MAC addresses that are sent in normal communication between a device and a router (in Wifi/Bluetooth communication)?
0
votes
1answer
387 views

Will ISP see my router MAC address? connection by 4g USB modem

Question is similar to Will my USB modem send my MAC address to my ISP? but not exacly. I have router dwr-116 and usb 4G modem which is connected to this router. Will ISP see dwr-116 mac address? or ...
1
vote
1answer
90 views

How to block access from a single computer, other than blocking the IP?

Here is the scenario: I have an application, whose one feature/part is to generate voice calls. I have also provided a (working) demo to generate calls from the website, by inputting your number (...
0
votes
1answer
68 views

What motivates wi-fi adapter-manufacturers to not allow MAC address changes in Windows? [closed]

I believe my Windows 10 computer does not allow me to change my wi-fi MAC address (unless I were to write my own firmware for the wi-fi adapter, but this would take lots of reverse- engineering on my ...
1
vote
1answer
881 views

Is it possible to Spoof Another Machine's MAC Address on LAN?

Is it possible to Spoof Another Machine's MAC Address on LAN? I know we can spoof mac address of machine that we are currently on, using macchanger or ifconfig wlan0 ether de:ad:be:ef:ca:fe. But I ...
0
votes
1answer
117 views

Captive Portal Security Measures

I am currently working on a Captive Portal solution, which can be distributed in an device that has an ethernet and wlan port. In short, I use iptables to restrict access to all devices unless they ...
-1
votes
1answer
55 views

Mac address of a laptop by ip [closed]

I lost my laptop and I do have ip address which recently accessed. Pls help anyone to trace my MAC address
2
votes
2answers
372 views

ARP-spoofing: why does the attacker constantly send ARP replys?

I have understood the basic concept of how arp-spoofing works. However, I am struggling with the details. Why does an attacker have to constantly send out spoofed arp-announcements to the network? ...
0
votes
2answers
840 views

Is it possible to trace a MAC address to an individual?

Ethernet cards have a unique MAC address that is assigned during manufacture. If you capture a MAC address, and no other information, can you trace this to an individual? Perhaps the manufacturers ...
1
vote
1answer
55 views

What can an attacker know with knowledge of a device's BD_ADDR?

Lots of articles mention the importance of keeping the BD_ADDR secret as knowing it can allow an attacker to do stuff. What can an attacker really do?(Assuming that he has knowledge of the UAP + LAP ...
3
votes
2answers
3k views

unknown user on my router

Recently i noticed that there is an unknown user connected to my modem. I tried to block the mac address by accessing router page(192.168.1.1 ,dlink modem) > parent control > macaddress filter > put ...
-4
votes
1answer
4k views

Get MAC address of client using PHP, Angular js, jQuery/JavaScript [closed]

ipAddress=$_SERVER['REMOTE_ADDR']; $macAddr=false; #run the external command, break output into lines $arp=`arp -a $ipAddress`; $lines=explode("\n", $arp); #look for the output line describing our ...
1
vote
0answers
906 views

How to detect or check if one device is being used in Mac Address Spoofing attack?

How to detect or check if one device is being used in Mac Address Spoofing attack?? We already check the system... Malwarebytes, Windows AV Scans and nothing is detectec.. also there is any kind of ...
5
votes
2answers
281 views

Why does my Charter cable modem have a static ARP entry tied to a Department of Defense IP?

I recently was told the username and password to get into my ISP-provided cable modem. It's a Cisco DPQ3925C. Some poking around for unrelated purposes led me to the list of ARP entries. I didn't ...
0
votes
0answers
42 views

MAC address confusion [duplicate]

I was curious about what a MAC address was, so I googled it. I found a site where if I would write my MAC address, it would be present in their database alongside with my MAC vendor, and vice versa. ...
1
vote
1answer
399 views

How to get attacker mac address aireplay-ng

I'm currently working on a WIPS and I would like to know how to obtain the attacking MAC address when he launches a aireplay-ng deauth attack. On wireshark, if the attacker broadcast the deauth ...
3
votes
2answers
1k views

MAC filtering the internet traffic?

I was trying to build a firewall where in the access to my LAN from internet should be allowed only if it matches the predefined MAC address of the device i.e,. MAC filtering, but later i found out ...
2
votes
1answer
2k views

What does two IP-addresses using the same MAC-address mean?

When doing forensics, I saw the same MAC-address being used by two different IP-addresses in a splunk logfile: 139... 4681.791993 Apple_5a:77:9b Apple_69:38:cc ARP 64 192.168.1.64 is at 00:...
2
votes
3answers
5k views

Is it possible to find the manufacturer of a BLE device from it's mac address?

Tools like nmap are able to identify the make of a device based on it's mac address. Is there a tool or a reference to identify the make of a Bluetooth Low Energy device based on its mac address?
5
votes
2answers
2k views

Can I set a fixed gateway IP and MAC address to prevent ARP spoofing?

I was wondering, can I force Windows to use a static gateway defined by the IP and MAC address (Both), to prevent ARP spoofing (e.g. NetCut)? So even if I have been spoofed Windows will ignore the ...
-1
votes
1answer
9k views

How to get client MAC address using Angular JS? [closed]

I want to find the client MAC address using Angular JS or JavaScript. How can I do that?
1
vote
1answer
437 views

Captive portal (Wifi) remembers me even if I change my MAC address

On occasion I change my MAC address from time to time at a public Wifi service. However lately something has changed. The captive portal (Wifi) remembers me even if I change my MAC address on my ...
0
votes
0answers
378 views

Revealing original MAC address

Is it possible for other hosts in the (wired or wireless) network to detect original MAC address? After changing mac address capturing traffic shows that indeed not-original mac is sent, but I am not ...
3
votes
4answers
593 views

Received letter from attorney stating they found a pirated copy of software on my computer based on my MAC address [closed]

Is this correct? Can a MAC address lead a company to the specific user? They have my phone number and an old email address for me. The information they sent me is showing a MAC address and the ...