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.

Filter by
Sorted by
Tagged with
2
votes
2answers
190 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
1k 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
167 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
483 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
129 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
1answer
540 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
116 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
74 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
2k 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
184 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
67 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
3
votes
2answers
767 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
2k 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
94 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
7k 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
7k 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
1k 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
380 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 ...
1
vote
1answer
1k 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 ...
2
votes
2answers
4k 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
3k 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:...
3
votes
3answers
12k 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
3k 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
vote
1answer
15k 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?
2
votes
1answer
714 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
517 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
1k 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 ...
37
votes
8answers
23k 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 ...
3
votes
2answers
2k 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 ...
3
votes
2answers
23k 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 ...
1
vote
1answer
2k 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 ...
2
votes
1answer
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 ...
2
votes
3answers
1k 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 ...
1
vote
1answer
513 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?...
1
vote
2answers
11k 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 ...
0
votes
2answers
2k 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 ...
2
votes
5answers
5k 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 ...
0
votes
1answer
230 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 ...
0
votes
1answer
66 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 ...
0
votes
1answer
4k 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 ...
1
vote
6answers
3k 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 ...
6
votes
3answers
2k 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 ...
74
votes
9answers
25k 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 ...
2
votes
3answers
7k 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 ...
2
votes
4answers
10k 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 ...
1
vote
1answer
3k views

Is there a way to prevent changing the MAC address on a Windows machine?

Is it possible to stop someone from changing the MAC address of a Windows machine using GPOs?
0
votes
3answers
248 views

How can I change this new MAC address? [closed]

I have successfully changed my MAC address using macchanger from XX:XX:XX:XX:XX:XX to YY:YY:YY:YY:YY:YY. I executed ip neigh on Kali Linux and got this output: 192.168.0.1 dev eth0 lladdr ZZ:ZZ:ZZ:ZZ:...
1
vote
2answers
3k views

How effective is MAC whitelisting on a Wireless Access Point? [duplicate]

For the sake of context, let's say I set up my home router with WPA2, a strong passphrase and I whitelisted all of my devices. I know the data is encrypted, but is the layer 2 header encrypted as ...
1
vote
1answer
62 views

Can I be identified across different access points to same ISP?

The ISP I use at home also provides access points in cafés etc. Can they, for example with my MAC address, match my identity when I'm using one of these access points to when I'm at home? And what ...
4
votes
2answers
2k views

Unknown MAC in network

A few days ago, I noticed an unknown MAC address in the statistics page of my home router. The OUI lookup yields Cisco as manufacturer. However, I don't have such a device in my network -- actually, I ...