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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.

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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 ?
user345's user avatar
3 votes
2 answers
163 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 ...
gavery's user avatar
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2 answers
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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 ...
Edge7's user avatar
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1 answer
223 views

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

I love my corporate laptop. It's nothing fancy: Lenovo Thinkbook 460s with ram upgraded to max for VM use. That said, I've pounded this thing into the ground and gotten attached to it. I have to ...
bashCypher's user avatar
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1 vote
1 answer
793 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 ...
kryptonite's user avatar
2 votes
2 answers
319 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 ...
Matty Dilkes's user avatar
-1 votes
1 answer
2k 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?
Patrick Zhou's user avatar
2 votes
1 answer
683 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 ...
TNP's user avatar
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1 vote
1 answer
810 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 ...
Joe's user avatar
  • 21
0 votes
1 answer
240 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!
Mohamed Elalami's user avatar
0 votes
1 answer
822 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 ...
ared20's user avatar
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1 vote
1 answer
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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 (...
kadamb's user avatar
  • 199
0 votes
1 answer
138 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 ...
bobuhito's user avatar
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1 vote
1 answer
3k 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 ...
vs4vijay's user avatar
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1 answer
314 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 ...
Dániel Emőd Kovács's user avatar
-1 votes
1 answer
130 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
Logeswaran's user avatar
3 votes
2 answers
985 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? ...
lalu's user avatar
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2 answers
4k 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 ...
paj28's user avatar
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1 answer
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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 ...
Lew Wei Hao's user avatar
3 votes
2 answers
9k 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 ...
Jayakrishnan's user avatar
-4 votes
1 answer
8k 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 ...
akhil's user avatar
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1 vote
0 answers
2k 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 ...
Garcia's user avatar
  • 11
6 votes
2 answers
678 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 ...
Mikey T.K.'s user avatar
1 vote
1 answer
2k 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 ...
elena.bdc's user avatar
2 votes
2 answers
6k 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 ...
Abdul's user avatar
  • 21
2 votes
1 answer
4k 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:...
user134404's user avatar
3 votes
3 answers
20k 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?
Tabish Imran's user avatar
6 votes
2 answers
4k 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 ...
Shahm's user avatar
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1 vote
1 answer
19k 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?
Sumit patel's user avatar
1 vote
1 answer
990 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 ...
Muxe's user avatar
  • 11
0 votes
0 answers
602 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 ...
user avatar
3 votes
4 answers
3k 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 ...
Nina's user avatar
  • 31
36 votes
8 answers
26k views

Unknown suspects hijacking our WiFi. Caught their MAC addresses [duplicate]

I noticed our Internet was bogged down. I checked the IP addresses of all devices connected and found the MAC addresses of the culprits: Question: How to find their geographical location based on ...
Top Banana's user avatar
3 votes
2 answers
3k views

How to find remote routers mac address?

I found an open port on my home network. Port 4567. From what I understand and have read online the router uses its MAC address as username, so all you need to login on the router is the routers ...
Edward Snow's user avatar
3 votes
2 answers
32k views

How to get clients mac address for aireplay-ng [closed]

While I was reading the docs on deauth for aireplay, I found that the parameter -c 'mac addr' is used for deauth of a specific client if I am not wrong. But what I don't know is how to find the MAC ...
Spark's user avatar
  • 43
1 vote
1 answer
3k views

Spoof Windows MACs without restriction

How do I spoof the MAC address in Windows without 02 or 00 being the first octal? Microsoft has restricted it to 02 and 00 being the first octal! The MAC Spoofing works perfectly when I am on Linux ...
Yash Sodha's user avatar
2 votes
1 answer
2k views

NAT Mac address leak to Internet

Recently in the leaked 0-day exploit for Tor browser, whole shellcode's purpose was getting user's MAC address and sending it to the servers which people are suspecting that exploit was developed by ...
John McKean's user avatar
2 votes
3 answers
2k views

How to investigate my wifi router for devices which are disconnected earlier

I have a D-link 600M router with a simple WPA2 password that got cracked. 60 Gb of data was downloaded (I think they downloaded torrent movies), which resulted in the renewal of my data plan. I ...
john doglas's user avatar
1 vote
1 answer
1k views

What information does a wireless access point have about connected devices?

Which information about a connected device leaks to the access point it is connected to? What's the minimum amount of information that must be supplied to successfully connect, apart from the password?...
Jibran.'s user avatar
  • 13
2 votes
2 answers
13k views

Can my ISP see MAC address of devices which are behind router? [closed]

My ISP gave me a special portal which contains my data usage. It also showed the usage by device MAC address. These devices are behind my router, but I thought that the mac address would not cross the ...
Surya's user avatar
  • 21
0 votes
2 answers
3k views

Block MAC address in PHP [closed]

Refer to this post here how-can-i-get-the-mac-and-the-ip-address-of-a-connected-client-in-php, MAC address is unique as per device right? So if I found a possible attack from that device, I could ...
4 Leave Cover's user avatar
2 votes
5 answers
9k views

Cannot identify or block unknown MAC addresses (Part 2)

Previously, I mentioned 5 unknown MAC addresses often connecting to my router, and noticeably causes my internet to be slow. Router: Tenda D303, Location: India, Connection: BSNL Unlimited 1Mbps ...
NVZ's user avatar
  • 131
0 votes
1 answer
616 views

Is using a switch enough to hide MAC adresses of my devices from my ISP?

I guess that my question sounds particularly dumb for specialists, but I was unable to find a reliable answer trough Google, so eventually I decided to post it here. I have a router obtained from ...
John's user avatar
  • 1
0 votes
1 answer
134 views

Mac cloning ineffective

My network card broke and I got a new one. Instead of registering it with the IT guys upstairs, I cloned the MAC of one of our unused machines. I'm not being given an address at all, despite the ...
tetris11's user avatar
  • 101
2 votes
1 answer
6k views

Is there any way to scan a host with nmap without arp respond?

I have a security device that it doesn't respond to icmp and arp request. but i know its MAC address. I want to scan the device with nmap but always says "host down" and does not start port scan (even ...
Giac's user avatar
  • 175
1 vote
6 answers
4k views

Need to trace the owner of a MAC-address connecting to my router [closed]

I'm using a ISP with router of Linksys E900 model. During the last three month someone anonymous has been using my internet. I can see the MAC address using different IP address. Right now it needs to ...
golden3's user avatar
  • 21
5 votes
3 answers
3k views

Cannot identify or block unknown MAC addresses

I've only got a basic idea about networking, Google is my teacher. Router: Tenda D303 Location: India Connection: BSNL Unlimited 1Mbps broadband. Friends and relatives visit me often, and connect to ...
NVZ's user avatar
  • 131
77 votes
9 answers
29k views

School asked us to submit our MAC addresses

My school has recently asked us to submit our MAC address to the school along with our designated name to be used to connect to the Wi-Fi. Previously this wasn't needed. I would like to ask about ...
cyanide's user avatar
  • 897
2 votes
3 answers
8k views

Spoofed MAC address with macchanger but cant connect to internet

So I used macchanger to spoof my mac address with these commands: sudo ifconfig (interface) down sudo macchanger -m (mac_address) (interface) sudo ifconfig (interface) up If I stop here I will not ...
qstion6006's user avatar
2 votes
4 answers
30k views

What could someone do if they knew my MAC address? [duplicate]

Assuming someone knows my MAC ddress (someone inside my network or outside), could they exploit it or do some action on my behalf or any action that needs to be considered? Because I have noticed ...
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