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Connecting ISDN PRI to a VPN via a Cisco AS5350
Sudhanshu Gupta examines how to connect an ISDN PRI to a VPN using a Cisco AS5350. Ask the Expert
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Optimize network space for IP addresses
Sudhanshu Gupta explains how to use a Cisco 2600 Router to get networks to talk to each other. Ask the Expert
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Change your network adapter's IP information
To change a machine's TCP/IP settings, you can use a VBScript to modify the network adapter information on a computer. Tip
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jabber (in networks)
In networks, a jabber is any device that is handling electrical signals improperly, usually with negative results for the rest of the network. Definition
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forest-and-tree model
The forest-and-tree model is a logical structure for interconnecting multiple network domains in Windows 2000 and later operating systems. Definition
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port number
A port number is a way to identify a specific process to which an Internet or other network message is to be forwarded when it arrives at a server. Definition
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DNS for a wireless network: Router Expert
DNS services are essential for building a secure wireless LAN. Our Router Expert provides complete instructions for setting up a DNS server, including implementing BIND, configuring a non-authoritative server and creating zone files. Tip
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Blocking IPs
I have a T1 connection to my Cisco 2620, along with a public IP block of 255 IP's. I want to block some selected IP's from accessing the outside world Ask the Expert
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Bandwidth for video over IP may skyrocket
Video was a hot topic of conversation at the Cisco Networkers annual customer conference, with the uses for it as varied as the attendees. Several network architects and engineers are already experimenting with video and factoring it into their futur... Article
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Security and the TCP/IP stack
Each layer of TCP/IP has security mechanisms, protocols, and applications. This tip describes the more popular ones that are associated with each layer of TCP/IP. Tip
Network Management Strategies for the CIO