Table of Contents
- 1 Can two IPs have the same MAC address?
- 2 What would happen if 2 devices on your local area network have the same MAC address?
- 3 What happens if two devices on the same Ethernet network determine the network is free but attempt to transmit data at exactly the same time?
- 4 Do different devices have different IPS?
- 5 Does each Ethernet port have a different MAC address?
- 6 How do I scan a specific IP address with Nmap?
- 7 What is Nmap and how does it work?
Can two IPs have the same MAC address?
Yes you can have multiple IP addresses assigned to the same MAC address.
What would happen if 2 devices on your local area network have the same MAC address?
If two devices have the same MAC Address (which occurs more often than network administrators would like), neither computer can communicate properly. On an Ethernet LAN, this will cause a high number of collisions. Duplicate MAC Addresses on the same LAN are a problem.
How can two devices have the same IP address?
As I understand it, two computers cannot have the same public (external) IP address unless they are connected via the same router. If they are connected via the same router, then they can have (share) the same public IP address yet have different private (local) IP addresses.
Do different interfaces have different MAC addresses?
Each network interface, whether wired or wireless, is a unique device and as such will have a unique MAC address.
What happens if two devices on the same Ethernet network determine the network is free but attempt to transmit data at exactly the same time?
This describes how the Ethernet protocol regulates communication among connection points….
| Q. | This is what happens if two devices on the same Ethernet network determine the network is free, but attempt to transmit data at exactly the same time. |
|---|---|
| A. | overlap |
| B. | crossover |
| C. | collision |
| D. | none of the above |
Do different devices have different IPS?
Every device on the same network has a unique IP address, within the network. Outside of that network (on the internet) each device on the network uses a single, shared, public IP address. Every device has to have a different IP.
Can two private networks have the same IP address?
Yes. Private IP addresses of two different networks can be same. It is the public IP that is needed to be unique which we assign to router. While communicating to external network only router’s address is used.
Can two phones share the same IP address?
So, even if that employee at Quora has an identical IP address to the computer that you are reading this on, because both of your LAN routers’ external interfaces have a unique IP, your requests are not going to be confused with their requests. Q: That’s stupid.
Does each Ethernet port have a different MAC address?
Your Ethernet card is considered one device. Every Network Interface Card (NIC) is one device and has its own MAC address. Each network interface, whether wired or wireless, is a unique device and as such will have a unique MAC address.
How do I scan a specific IP address with Nmap?
Simple NMAP scan of IP range The default scan of nmap is to run the command and specify the IP address (es) without any other options. In this default scan, nmap will run a TCP SYN connection scan to 1000 of the most common ports as well as an icmp echo request to determine if a host is up. There are four ways to scan multiple IP addresses:
How to get the MAC address of a specific IP address?
nmap -sn 192.168.1.0/24 gives the MAC and IP addresses. Very Useful too The following command with nmap with root privilegies (or using sudo ):
How to get the MAC address of a host using Nmap?
We can use Nmap to get mac address of a host if we are in the same network segment. The more complicated way is using SNMP service. SNMP tools can be used to get the mac address of the hosts. Here we use Nmap SNMP script to query SNMP service simply.
What is Nmap and how does it work?
Use Nmap, the open source network mapper tool, to better understand what’s happening in your network. Nmap, which stands for “Network Mapper,” is an open source tool that lets you perform scans on local and remote networks.