-
Will changing your router while using fiber optic internet change your IP address
If you use a separate modem and router, then you can change your modem at will without impacting the IP you've been assigned, but changing the router will change the IP, unless your router supports changing the MAC address, and you change it to the MAC of the old one. The LAN IP address is used for accessing your router's web interface to configure settings, while the WAN IP address is provided by your internet service provider to establish external connections. Being a business product, a. IP addresses change because ISPs often assign dynamic IPs, which can change periodically for reasons like network maintenance, reboots, or reconfigurations. Dynamic IPs are useful but can disrupt remote access or gaming setups. To avoid disruptions, you can use Dynamic DNS (DDNS) to track changing. Restarting a router can potentially change your public IP address if it is dynamic, which is often the case with most ISP allocations.
[PDF Version]
-
How to use IP to trace MAC address on a core switch
Run the command ping ipaddress to contact the IP address. Find the MAC address under "Physical Address" or "HWaddr". This methodology is vendor agnostic, but in this example we will be focusing on Cisco devices. This can be used whenever you are. Finding which switch and port an end user IP is connected to in a large LAN with multiple switches involves a series of steps using network tools and commands. The procedure involves two key steps: First, use the mac address-table to map the. From the above you know the MAC Address of for the device: Now, do a show mac-address command on the core switch or router. We'll show you how to use commands like arp and getmac to find the MAC address for a. Connect to the Switch/Router by using a console cable or a terminal emulator like Putty or Secure CRT. Next enter “enable” mode on the switch by typing enable.
[PDF Version]