Communication
YeaLink SIP T41P SIP Phone
Research LInks PDF: SIP-T41P IP Phone Manual Google: SIP Account How to do a factory reset on Yealink Desk Phone?
Computing
Home Router NAT Port Address Translation
A short video presentation of how most home routers do network address translation. It is useful to know how the router knows which device to send the data to. It is also helpful to understand why VPN routers need to use a different internal subnet to avoid getting confused. Original longer video covering Read more…
Computing
Cisco Packet Tracer
Packet Tracer is a cross-platform visual simulation tool designed by Cisco Systems that allows users to create network topologies and imitate modern computer networks. The software allows users to simulate the configuration of Cisco routers and switches using a simulated command line interface. Packet Tracer makes use of a drag Read more…
Computing
USB Port on Routers
Click on the image for a larger version I have an access point with a USB port on it. It also has a console and ethernet port. What is the USB port used for? At first I thought it might be the port used for serial but rechecking using google Read more…
Computing
Copy Router Firmware in Flash Memory using a TFTP Tool
This video shows you how to use a tftp tool to download the contents of a routers firmware in flash memory to a file on your computer.
Computing
Automatic IP Address Assignment – How DHCP Works
DHCP assigns local IP addresses withing a local area network (LAN). This video details the process of handing out IP addresses.
Computing
Network Address Translation – NAT
Network Address Translation translates the local area network LAN private IP addresses such as 192.168.1.2 to public ones.
Computing
Flashing a Linksys WRT54G and WRT54GL Router with DD-WRT Firmware
This is a summary of the process of flashing DD-WRT onto a Linksys WRT54GL wireless router. Research Links – make sure to read about your own routers particulars if you are not doing the same model as I did. In this case I did a WRT54GL. This is where I got my information. Read more…
Computing
Adding Ethernet Physical Ports to a Router – Cascading Routers
It is easy to add ports to a router by using a switch. Â Switches generally run on MAC address alone and leave the IP address assignment to the router and thus the DHCP server will assign units attached to the switch their own IP addresses.