When a device connects to your home local area network (LAN), it is provided an internet protocol (IP) address, which allows all other devices (and external servers) to send and receive data without ...

Many administrators forget—or don't even realize—that they can configure Dynamic Host Configuration Protocol (DHCP) on Cisco IOS routers and switches. David Davis discusses the pros and cons of this ...

At work we have a DDNS server, a web server, and a switch with a dozen PCs connected to it. I'd like to set up the DDNS server on its own subnet (192.168.5.x), the web server on (192.168.10.x), and ...

I just got a Zyxel Modem from Century Link and 5 usable Static IPs in a block of 8. I configured the modem for "transparent bridging" and configured the PPOE credentials on a DD-WRT router and now it ...

Two of the most common forms of network address translation (NAT) are dynamic port address translation (PAT) and static NAT. PAT is the many-to-one form of NAT implemented in many small office and ...

Most IT pros realize that using Telnet to manage routers, switches, and firewalls is insecure. Transmitted in clear text across a network, Telnet traffic basically publicizes any login usernames and ...

Most IT pros know that using Telnet to manage routers, switches, and firewalls is not exactly a security best practice. Instead, the accepted alternative to Telnet's lack of security is Secure Shell ...