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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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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?
leeand00's user avatar
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0 votes
3 answers
333 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:...
Shri Devi Charan Singh's user avatar
1 vote
2 answers
4k 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 ...
Lutefisk's user avatar
  • 382
1 vote
1 answer
126 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 ...
lash's user avatar
  • 289
7 votes
2 answers
5k 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 ...
Stefan's user avatar
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1 vote
6 answers
13k views

Does MAC address filtering provide security? [duplicate]

Sometimes I need to configure the router and choose which devices can connect to my network (MAC address filtering). For example, limit connections to 3 specific machines. But for an advanced user, it ...
GAD3R's user avatar
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8 votes
4 answers
60k views

With Nmap it is possible to scan according mac address?

I would like to know if it's possible to use Nmap in order to scan hosts according to their mac address. Or if it's not possible to do it directly, is there an option (i didn't find) to select only ...
mric750's user avatar
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1 answer
388 views

Can the MAC address be "hidden"? ie that the information is not even delivered [closed]

Along with the above question, I would also like to know how can the MAC address be properly changed? Moreover, can it be replaced by a casual sequence or there are specific addresses to use? Finally, ...
user98139's user avatar
2 votes
1 answer
145 views

Could this piece of code be harmful ?

I just wrote these 2 functions in C#.net and it can get any user's system IP and MAC address. Isn't this harmful since I got help from microsoft documentation. Could these lead to potential damage or ...
Stacky Flowy 's user avatar
3 votes
1 answer
272 views

Is it good idea to use a access point MAC address as wifi password?

I realized that one network I'm connecting with is using a MAC address of one of its interfaces. If an attacker would know that fact, could he somehow obtain the MAC address wirelessly and break ...
Zbigniew Malinowski's user avatar
2 votes
3 answers
1k views

Can WiFi detect you even if you aren't connected

I've read that the way WiFi works is that your computer sends out requests looking for any WiFi it recognizes. I use a MAC spoofer but if there is a WiFi in range before I have time to spoof my MAC ...
Nob0dySp3cial's user avatar
6 votes
2 answers
12k views

Deauth all users on AP except yourself

I am looking to create a small first project to further my self education into infosec. I will be putting this on my Github. My idea is to create a script that automates the process of deauthing all ...
ma77c's user avatar
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2 votes
1 answer
583 views

Static MAC address on Switches and routers

I was having a discussion with a friend of mine in IS industry and he insisted that setting static MAC addresses (i.e. port security) on devices were a effective way to block MAC spoofing. I found ...
user92592's user avatar
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0 votes
1 answer
4k views

What attacks or exploits are possible when MAC address, IP, and Port of a WiFi access point are known? [closed]

I just accepted a position at a small firm and was testing the previous WiFi setup for flaws and exploits that were possible. We have two AP's for business and guest connections, everything checks out ...
Jeff Morrison's user avatar
4 votes
2 answers
13k views

Is another MAC address generated when a wireless is created using the same device for LAN? [closed]

I notice that the devices listed on the wireless system listed a MAC address that is supposed to be the router but it is not the same # that is on the router case. It differs by one one digit, *.98....
Gary's user avatar
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2 votes
2 answers
5k views

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

I have a wifi scanner which shows me the MAC addresses of the wifi routers nearby. It displays SSIDs in one column and MAC addresses in another column. I want to know the IP address of the router. ...
AHB's user avatar
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6 votes
1 answer
2k views

MAC overflow (flooding)

On a recent switch, is MAC flooding still a vulnerability to be careful of? If that attack is patched on most of them, then on which type of switch is it still vulnerable?
Bob Ebert's user avatar
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5 votes
1 answer
9k views

How can Port Stealing be used as a MiTM attack?

I read about and tried a lot of MiTM attacks but I just don't get how Port Stealing can be used as a MiTM attack. In my understanding one can "steal" a Port by sending Ethernet Frames faking the ...
davidb's user avatar
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11 votes
4 answers
13k views

How to break MAC address filtering?

If a MAC filter prevents you from connecting to a network, how can you break it or include your device's MAC in that filter?
EHY's user avatar
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7 votes
1 answer
1k views

Locking Linux system to work on certain hardware only

Is there a way of locking a Linux system to work with a specific (pre-defined) hardware only? I am developing a commercial product and want to make it a bit harder for someone to clone the whole ...
Kozuch's user avatar
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0 votes
3 answers
24k views

Tracing an email's MAC address

Can someone trace the MAC address of an email to the point of origin if the email address has been deleted? I received an email from an unknown sender regarding an issue at my work, and when I tried ...
mvh676's user avatar
  • 17
2 votes
1 answer
496 views

Does a VPN Provider Know My MAC Address?

I know MAC is a layer 2 address, so it's only sent to the next router in the chain. Does a VPN provider get that information when I'm connected to their service? Is their router considered the next ...
Mars's user avatar
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2 votes
5 answers
1k views

Reasons for gathering MAC address list

Suppose there is a password-secured WiFi network that exists to provide users with Internet access only. Edit: Consider a guest/mobile-BYOD network as an example. Since filtering access to a WiFi ...
Spehro Pefhany's user avatar
4 votes
1 answer
2k views

How does detecting promiscuous mode using an ARP test work?

I have read that we can detect whether a system is running promiscuous mode by sending out an ARP request with a fake broadcast address e.g FF:FF:FF:FF:FF:FE.This will be blocked by all NIC's ...
faraz khan's user avatar
1 vote
1 answer
474 views

MITM sniffing packets

I fail to understand how a MITM attack sniffs packets and modifies them.In the case of ARP spoofing although the attacker has spoofed the MAC address of a host, how does he modify it as the IP layer ...
faraz khan's user avatar
3 votes
2 answers
1k views

Is there any way to determine the location of a laptop based on its MAC address or serial number?

If I have the MAC address and S/N of a Lenovo 3000 Laptop, is there some way for me to find exact street location of this laptop ? This machine was stolen from me last year and was my back up machine ....
user77141's user avatar
0 votes
2 answers
5k views

How can I find out who is behind a Mac address? [closed]

I was connecting a bluetooth device to my tablet and noticed that when scanning for the devices one "device" was actually a Mac address. We (me and my husband) have been under a hacker attack already ...
Inge's user avatar
  • 9
2 votes
1 answer
7k views

How does Amazon Fire TV know my name/account? [closed]

I bought a Fire TV stick and inserted it into the HDMI-port of my TV. I was presented with a dialog to select my wireless router so it can connect online. Just after I did that, it asked me if I am ...
scrrr's user avatar
  • 151
1 vote
1 answer
3k views

Tracing stolen android tablet via MAC address [closed]

I lost my tablet , but I can see that the tablet is connected to the network on my router: :So I know the MAC address but I am unable to trace my tablet using this information and I am running out of ...
sec101's user avatar
  • 119
0 votes
2 answers
4k views

Is my WiFi connection protected?

In my college the WiFi is open type connection and before I connect to it using my laptop with windows 8.1, it displays message "Other people might be able to see info you send over this network " (...
Divyanshu's user avatar
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2 votes
2 answers
576 views

Can changing a MAC address give an attacker more leverage in a network?

Security lessons force us to use limited users (Standard User) on Windows networks. I found that an administrator account can change his MAC address from Control Panel\Network and Internet\Network ...
Tayyebi's user avatar
  • 53
1 vote
1 answer
3k views

At Starbucks, is my MAC address sent when I accept the terms of service for free Wifi? [closed]

Recently, I overheard by chance some technically savvy guys saying that when you accept the terms of service in order to use the "free" WiFi at Starbucks (which you pay for when you buy some coffee), ...
Icann's user avatar
  • 453
1 vote
1 answer
2k views

How to retrieve the MAC address of a remote IP [closed]

I have an IP address, and I want to find the corresponding MAC address. The IP address is in the same city, so we're connecting to the same network. How do I find the corresponding MAC address?
Ali's user avatar
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1 vote
2 answers
464 views

Is there any security in locking down a router by MAC address for wired clients?

At our office we have a router on the table, and the powers that be want to lock it down by MAC address to stop people from plugging in cables for other computers i.e. intruders. Given that resetting ...
NibblyPig's user avatar
  • 111
1 vote
1 answer
761 views

help identifying an IP address from email sent from my gmail account

Someone sent the following email from my gmail account. I believe it was hacked and if I can find the IP address I may be able to identify the person who did it. Here is the information. Please let me ...
rachel's user avatar
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17 votes
0 answers
2k views

What can the school do with my MAC address? [duplicate]

At my school they are requesting my MAC address so that I can use the schools Wi-Fi. Now I understand that the school can see what sites I am going to while I'm at school. But can the school see what ...
Hayden Gove's user avatar
0 votes
1 answer
739 views

Is the MAC address encapsulated in the Internet packets? [duplicate]

This might be a stupid question, but what is the range of the MAC addresses? Are these somehow leaking to the Internet with packets that a user sends (so they know where to return)?
user58839's user avatar
1 vote
1 answer
300 views

Identification info that my wireless card sends to the (wifi) network

Are any other identification information that my wireless card sends to the Wi-Fi network apart from the MAC address ? If so are they changeable? Let's say, for example, that I connect to a Wi-Fi ...
Kontopid's user avatar
4 votes
2 answers
29k views

Can 2 devices have same host-name on same network? [closed]

I can see one unknown android device on my network, but it has same host-name as my android device. QUESTION 1.Is this possible that on same network two different devices can have same host-name ? ...
vivi's user avatar
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120 votes
9 answers
137k views

Is it dangerous to post my MAC address publicly?

When posting questions, it is often quite useful to include debug output. However, it sometimes include the MAC address of my laptop, router, or both. What are the possible dangers of releasing these ...
Shelvacu's user avatar
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5 votes
2 answers
13k views

Can viruses steal MAC addresses? Why is MAC address bad?

Can downloaded executables get my MAC address and send it to somewhere else? Also, why is it a security risk to have someone else use my MAC address, considering that it can be spoofed?
Jerry Rockwell's user avatar
-2 votes
3 answers
18k views

Is it possible to retrieve MAC address of a host using Tor?

I know that Tor is used for anonymity while browsing in the Internet. I heard that by using Tor, it is possible to hide my IP. But is it possible to hide my MAC address also?
Anandu M Das's user avatar
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2 votes
1 answer
827 views

Is there a way to identify the location of a person trying to intrude your wifi network? my wifi router is picking up his attempts

Aug 30 20:28:09 dropbear[6799]: Child connection from ::ffff:5.10.69.82:38463 Aug 30 20:28:11 dropbear[6799]: login attempt for nonexistent user from ::ffff:5.10.69.82:38463 Aug 30 20:28:12 dropbear[...
shashidhar bhat's user avatar
2 votes
2 answers
4k views

Can attackers be traced if they used public WiFi

I always thought it's possible to track attackers unless they try to hide their identities using some form of "physical" disguise. No matter how many proxies you use even TOR seems to be traceable by ...
Ulkoma's user avatar
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5 votes
2 answers
3k views

Is it possible to ping a LAN card through its MAC address? [duplicate]

As you can start a PC through its 'WAKE ON LAN' feature on private networks, can you trace someone's online status through their MAC address over the internet ?
manket59's user avatar
  • 1,225
4 votes
3 answers
953 views

How can spoofing a certain MAC address enable sending probe requests that I was never connected to?

I was wondering how could my computer that uses a spoofed MAC address be sending probe requests for APs that I was never connected to? Note:- The other computer with the original MAC address was ...
peter b's user avatar
  • 51
39 votes
3 answers
71k views

How can a webpage get the MAC address?

I was logged on to my router and filling out some information. I clicked a button and a field was automatically filled in with my computer's MAC address. How is this possible? Does it present a ...
Celeritas's user avatar
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-1 votes
1 answer
1k views

How can I trace MAC address of not asosciated devices in my WiFi network?

I'm looking for hints to solve my problem. I would like to trace all devices that are in my surroundings. I know how do it when someone already access to my WiFi network, but I'm also interested to ...
Robert's user avatar
  • 1
4 votes
5 answers
7k views

Is MAC address filtering effective on a wifi router? [closed]

I want to improve the security of my home wifi. My neighbor wants to crack my Wi-Fi password with a nutcracker. I tried to activate the protection by MAC address, but now my laptop and smartphone ...
Belin's user avatar
  • 77
1 vote
1 answer
6k views

MAC-address restricted port forwarding

I have an ASUS RT-AC68U router and would like to set up port forwarding, but I would like to restrict which MAC addresses can connect through that port. My use case is that I'll have a live camera, ...
tlehman's user avatar
  • 145