Cellular Router Enables 3G - GPRS Connectivity To Industrial Equipment by Leon Mengot
Now, thanks to the Connectport WAN VPN, a next- generation cellular router designed to connect RS232 or Ethernet devices in-the-field directly to an internet facing PC, remote sites that previously could not connect to the internet can be networked and web connections made from mobile devices on... A built-in 4-port switch allows four Ethernet devices to connect directly to the Connectport WAN VPN without the requirement for an additional switch and its associated power / mounting requirements. ... Extensive routing functions including NAT, PAT (port forwarding) and VPN gives the unit the...

Affordable Multi-Monitor Solutions by Nathan Kartchner
Benefits of Multiple Monitors There has been much ado as of late about the benefits of increased desktop space. Multiple studies have shown that more computer desktop space equals faster work, greater productivity, and increased employee satisfaction. ... This expensive, yet impressive solution creates an additional DVI-D port using your laptop’s PCMCIA cardslot. ... Add an Extra Port to Your Laptop Laptop users have a different set of solutions. ... Two Ports are Better Than One Your first option is to purchase a multi-port video card that supports multiple monitors.

The Cell - A Revolution In 3d Rendering And Graphic Applications by Tim Morrison
The Cell Broadband Engine is a distributed computer processor capable of running instructions at upwards of 200 gigaflops or 200 trillion instructions per second. Although these would be fairly simple instructions, the speed of the Cell means it can process very complex information faster... 8th port of the switch goes to high-speed internet. ... Here's how it would possibly work: Get 6 PS3's link them together with a 8 port high-speed ethernet switch capable of running 1000 base-t or gigabit ethernet speed.

Cisco Firewall PIX 501 by Benjamin Hargis
This firewall is designed for homes and small businesses.This firewall can support up to ten users on a basic license from Cisco. It has a 133 MHz processor and comes with 16MB's of RAM. In addition it has 8MB of Flash RAM. The Firewall also comes with 1 uplink port and a four port switch. ... When you implement cryptography such as 3DES or DES it slows down the traffic.The PIX 501 can support anywhere from 50-unlimited users depending on your license. ... The firewall supports speeds up to 60Mbps bidirectional.

What You Need to Know About Networking by Alex Lakatos
Because networking is a relatively young science, it borrows language from other disciplines. Many networking terms come from the realm of physical transportation—terms such as bridge, hub, port, routing, and switching. That borrowing is apt. Just as the transportation revolution, and especially... A printer attached directly to a computer via a parallel or USB cable does not comprise a network; it becomes a network if the printer and computer are both attached to a switch or router. ... • Managed networking technologies (especially switches): A managed switch allows the user or...

Cisco CCNA / CCNP Home Lab Tutorial: Configuring An Access Server by Chris Bryant
As your CCNA / CCNP home lab expands, an access server such as the Cisco 2509 or 2511 is one of the best investments you can make. In this article, we'll look at the basic configuration for an access server and discuss how to connect to the other routers and switches in your pod through the AS. ... Keep doing this until you've opened a connection to every router and switch in your pod. ... That connector will be placed into the console port of one of your home lab devices. ... In this configuration, I have connector 1 connected to the console port of R1, connector 2 to R2, connector 3 to...

Cisco CCNA Exam Tutorial: Loopback Interfaces by Chris Bryant
As a CCNA candidate, you most likely have some background in PC hardware and workstation support. If so, you're already familiar with loopback interfaces, particularly 127.0.0.1, the loopback address assigned to a PC. When you're learning all about the different physical interfaces for your CCNA... As I mentioned, you'll learn different Cisco router and switch features that utilize loopback interfaces as you climb the Cisco certification ladder. ... A router's ethernet port can go down, but the other physical interfaces on that router are still operational.

Cisco CCNA Exam Tutorial: Using Trivial File Transfer Protocol (FTP) by Chris Bryant
One of the first things you do when you start studying for the CCNA exam is memorizing a list of port numbers and the protocols that run on those ports. If you're an experienced networker, you know most of the protocols that are mentioned - DNS, DHCP, FTP, SMTP, and so on. ... If you needed to copy an IOS image to a router, for example, you could do so easily by connecting your PC to the router’s console port (via a rollover cable, right?). ... And take it from me, when the day comes that you need those backups, you’ll be glad you did!

Always-On Networks Created with a Wireless Router by Troy Davies
If you're using a wireless network with Windows' built-in Internet Connection Sharing, you're probably quite happy with it -- but there's a problem. The problem is this: the computer the modem is connected to needs to be turned on before any of the other computers can get Internet access! ... Wireless routers have built-in firewalls that only allow data through on certain ports (for example the web port, 80, and the email port, 110), while keeping all the others closed. ... The most common problem is that your ISP uses special software to confirm who you are before giving you access to the...

Networking by John Gibb
Wiring up a LAN (local area network) can be very easy, or it can be very difficult – it all depends on the size of your network, and how you’re trying to go about it. For a very small home network, you can get by without using any special equipment except the wires. ... If you want to connect more devices to the network than the four or five ports on a router will allow, then you need to get a network switch. ... For example, you might have your computer and your printer both plugged into a switch.