Tagged Questions

A MAC address is a unique identifier for network adapters or network interface cards.

learn more… | top users | synonyms

2
votes
2answers
536 views

What's the difference between wlan.sa, wlan.ra, wlan.ta and wlan.da?

Tshark/wireshark (CLI) has several fields to display for WLAN, including these four (+ description from manual): wlan.sa: Source address wlan.ra: Receiver address wlan.ta: Transmitter address ...
-1
votes
1answer
573 views

How to limit internet access time per mac address

I want to be able to limit the amount of time some devices can connect to the internet to one hour per day. As an added bonus, I would like to restrict some sites (or categories of sites) per MAC ...
1
vote
1answer
54 views

Is it possible to sync specific router settings across multiple routers?

I recently purchased a second Linksys wireless routers set up on the other side of my home and I am wondering if it is possible to somehow sync particular settings between the two? For instance what ...
0
votes
1answer
120 views

Packet count per mac address on wireless network

I'd like to get to know how many packets get transferred to a certain MAC address in my wireless network, protected with WPA2. I'm not at all interested in the contents of the packets, I'd just need a ...
0
votes
1answer
1k views

The same MAC address twice on network?

Recently the Wifi network at our small company was messed up in a strange way. When I did a arp -i en1 -a I did in fact see the same MAC address listed twice. When I inquired with a ...
0
votes
0answers
145 views

How to find the MAC addresses of an unsecure network, on Windows, using the easiest steps?

As I try to prove that an insecure network, even with MAC filtering feature, is a bad thing (link here) , I've tried to find out the easiest way to do so. I'm trying to show that it's easy to enter ...
1
vote
2answers
1k views

Wifi password VS MACs filtering - in terms of speed vs security

Background First I need to say that I know about how better it is to secure the wifi network even with WEP , than to not secure it at all, and I know there is a thread asking a similar question like ...
0
votes
0answers
299 views

Separate MAC Filtering Rules for Each Frequency in Linksys EA2700-RM

I recently bought a Linksys EA2700-RM router for my home. I have set up the 5GHz network, the 2.4GHz network and the Guest network. My 5GHz network is for highest priority devices, the 2.4GHz network ...
1
vote
1answer
378 views

arp command returning weird info for Apple routers

When I use arp -a command, my two Apple routers (Extreme and Express) return weird results, unlike my other results. The IP address isn't a LAN IP address like the other results and the MAC address ...
3
votes
3answers
509 views

How do we get the router's MAC address without ARP?

How can a host that does not support Internet Protocol (it runs on layer 2 only) get the router's MAC address so that it can send Ethernet packets over?
0
votes
2answers
296 views

DHCP Reservation vs Mac address filtering. Are they the same security?

I am able to give an ip address to a wired/wireless device based on the mac address. Other automatic DHCP is turned off. Is this as effective as a security measure as MAC filtering? It just seems ...
1
vote
0answers
62 views

Two wireless extenders with same mac address…How to assign IP address dhcp

I have two wireless extenders, and they both have the exact same mac address (same make and model) Now, they work fine in the network, I just wanted to know how can I assign them specific IP ...
1
vote
0answers
237 views

Spoofing Windows 7/8 Mac address with 00: manufacturer?

As I am sure everyone knows starting with Windows Vista, you are not able to spoof MAC address to something that starts with a 00: For a project I am doing I have to spoof it as starting with 00: I ...
-3
votes
1answer
483 views

How to block a MAC address from connecting with my computer? [closed]

How can I block a certain MAC address from connecting to my computer? In fact this computer is in the LAN, and maybe has a virus.
1
vote
3answers
294 views

Find some access point IP Adress from Access point Mac address on the internet?

Is there any router or database which can we access to put some access point or router MAC Address and get IP address? Or i just think the mac address changes when a packet leave a router on the ...
2
votes
2answers
256 views

Is there something unique that identifies a computer from others?

I'm developing an application and I need to identify all computers that I encounter. Is there a certain technology to identify a computer? Is it the hard disk serial number?
1
vote
2answers
120 views

Layer 2 switching or Layer 3 forwarding?

I have a wireless router installed at my home (provided by ISP). Scenario: Router IP: 192.168.1.1 My Machine IP (X): 192.168.1.2 IP of machine Y: 192.168.1.3 Now when I ping Y from my ...
90
votes
13answers
15k views

What is the exact use of a MAC address?

I understand that IP addresses are hierarchical, so that routers throughout the internet know which direction to forward a packet. With MAC addresses, there is no hierarchy, and thus packet forwarding ...
0
votes
1answer
955 views

Automatic rename computer based on mac address

How to automatically rename computer host / name based on it's MAC address? I have 40 PC's and I need a script to rename them automatically at logon after I use ghost. Win7 environment.
3
votes
3answers
165 views

Why are not all MAC addresses randomly assigned?

At 48 bits, this would seem reasonably safe: you would need 751 devices on a network to have a 1/1 billion probability of a collision, and 751 devices with entirely layer 2 connections are rare -- ...
-1
votes
2answers
69 views

Devices with user re-writable MAC addresses [closed]

I'm looking for routers, cell phones, Internet sticks etc. that have user modifiable MAC addresses. Does anyone know how to spot them?? Also how to write the MAC address.. I've heard Linux is a good ...
0
votes
0answers
250 views

Change Mac Address on Wireless NIC

Problem I currently use a Intel(R) Centrino(R) Advanced-N 6230 network adapter, and I need to spoof the mac address in order to test security on my network. The problem is that the latest driver for ...
0
votes
1answer
425 views

If my router has a MAC filter, does that mean that a laptop with its wireless address registered cannot connect via Ethernet?

Here is the situation: I have a router that has been hijacked/hacked recently and we're attempting to up the security. Whilst I know MAC address filtering can easily bypassed, I'd like to clarify one ...
0
votes
3answers
6k views

How can I telnet from Windows to my server by MAC address?

How can I telnet from Windows to my server by MAC address? C:\Users\Asep>telnet D4:CA:6D:46:C9:98 23 Connecting To D4:CA:6D:46:C9:98...Could not open connection to the host, on port 23: Connect ...
0
votes
1answer
611 views

Linux Mint chooses random MAC address on bootup

Every time I start a machine with Linux Mint 14 installed, the Ethernet NIC chooses a random MAC address to use. Is there a way to disable that behavior?
3
votes
1answer
336 views

Relation between a packet and a frame over the network

I am learning how networks work and I have a question. What is actually sent over the network? A packet/datagram or a frame? I believe it is a packet. If so, let's say Computer A wants to communicate ...
1
vote
0answers
4k views

Can I track the MAC address of my stolen laptop by service tag number?

My Dell Vostro laptop was stolen five days back. Many valuable documents were on it, so how can I trace the MAC address of my stolen laptop? Can the MAC address be traced through the service tag ...
0
votes
1answer
523 views

IP conflict when connecting DHCP enabled PC to DHCP enabled laptop with its wireless and wired network connections bridged under Windows

I have a laptop running Windows XP SP3 with a wireless NIC and a wired NIC. I bridge the two network connections under Windows\Control Panel\Network Connections. This gives me a single bridged network ...
1
vote
1answer
1k views

Planetlab and scapy: MAC address to reach destination not found

Using the minimal Fedora 14 distribution provided in PlanetLab, I'm forging packets through Scapy and sending them with tcpreplay. I thought I had installed all the necessary packages to run scapy ...
1
vote
2answers
58 views

What kind of hardware information is accessible for computers on a network?

If a computer is connected to say, your job's network what kind of hardware information can be retrieved. More specifically can an administrator get a list of all the CPU's and there serial ...
4
votes
2answers
628 views

How is ARP about two VMs running on VMWare?

I know that systems in network connect together with IP and Mac address ,But insofar as i now all of OSs running on virtual machine use a common network card.I want to know how another systems connect ...
0
votes
3answers
286 views

Duplicate MAC but different IP on home router

Would it be possible to have duplicate MAC addresses but different IPs on a home router? My questions are listed below. I don't have computers with the same MAC. The second connection displays no ...
1
vote
4answers
7k views

Access Methods to a computer Using MAC Address

I have my own wifi network at home & recently when I checked the active clients on the wifi I found out the there is one active client. Router shows the MAC address of this client and I want to ...
0
votes
1answer
279 views

Why is my WNIC MAC changing every reboot?

The university I attend scans student and faculty machines with an agent (Bradford) to ensure they comply with policy (i.e. AV is installed and up-to date, and the OS is patched). The system's MAC ...
-1
votes
2answers
1k views

Change Broadcom Wireless adapter MAC addres to any address

I need to change my MAC address of Broadcom 802.11n Network Adapter to address of my choice - I need to mask myself as another device in the network. The conflict of the devices will not happen. Under ...
0
votes
1answer
12k views

How to get an IP address from a MAC address? [duplicate]

I have an ipscanner, but not every device is showing up. If I know a device is on the LAN, and I know its MAC address, how can I get it's IP address?
0
votes
0answers
71 views

Router wont clone Mac address

I have a DX-WGRTR and in the router settings there is an option to clone WAN MAC address. When I tried to clone my computer MAC address the router reboots after 25 seconds but it automatically set the ...
1
vote
2answers
2k views

Easy way to get mac address of network card

I use a lot of scripts that involve the Mac addresses of my network cards. Is there a file I can read or a command that I can use to JUST get the Mac address? I don't want any headers or anything, ...
3
votes
4answers
4k views

Why do we need IP addresses to communicate within the local network segment?

Because MAC addresses are only usable across the local network segment, we use IP addresses to communicate with other segments via routers. Meanwhile, for local targets, ARP is used to translate IPs ...
0
votes
0answers
77 views

Find mobile device on network

I'm trying to write a small program that will poll the network for certain IP addresses or MAC addresses (though MAC doesn't seem to show up past my WAP). My networking isn't very strong but many ...
0
votes
3answers
1k views

Trying to find MAC addresses across a network

When using nbtstat -a (IP address), will it return the true MAC hardware address of the machine?
1
vote
1answer
158 views

Why would results differ from trying two different methods to get a MAC address?

While trying to find MAC addresses of networked machines, two different methods were used and different answers were received: Ping the machine name using the command nbtstat -a xxx.xxx.xxx.xxx (x ...
0
votes
1answer
98 views

Is my MAC monitored? [duplicate]

Possible Duplicate: Is your MAC address revealed when you hit up a website? Is the MAC address traceable to the ISP? Or any website? If so can we hide the MAC address from a second person? ...
2
votes
1answer
618 views

Will I experience any issues if I change my laptop's MAC address(es)?

I'm always worried about anonymity and privacy, and just now I realized that some programs have access to the MAC address (and actually do it), eg: Dropbox. So I was wondering if changing the MAC ...
1
vote
4answers
258 views

Discover MAC address of wired computer

I would like to know the MAC address of a running computer which is directly connected to my own laptop with a wired cable (ethernet to ethernet). It has no DHCP server on it and I don't know its ...
3
votes
2answers
5k views

Can two devices with the same MAC address be on the same network?

What happens if there is a device already connected to a wifi network, and subsequently another device tries to join the wifi network using the exact same MAC address as the original?
6
votes
4answers
59k views

How to change the MAC address in Win 8 to spoof a Roku Player through a WiFi splash page?

My Linux laptop died yesterday and now I can't watch TV. Let me explain. I use a Roku Player to stream Netflix shows to my television; and a year or two ago, the Internet Service provided in my ...
3
votes
2answers
3k views

Can I find my stolen laptop if I only have its MAC address?

My laptop was stolen about 2 months ago. I have the MAC address. I have contacted the police, but they said they could not find the laptop if it is behind a ADSL modem or any NAT. Is there any way ...
0
votes
3answers
3k views

Spoof MAC address Win 7 to 00 prefix [duplicate]

I want to change my windows 7 Mac Address of wireless adapter to any adres with a prefix of 00. This because the router i`m on only allows connections of 00-Mac addresses. At least, that is what I ...
1
vote
2answers
10k views

Is my MAC address public when browsing the Internet? [duplicate]

Possible Duplicate: Is your MAC address revealed when you hit up a website? Can anybody see my MAC address when I'm on the Internet? Also, where can I check my MAC address?