CCNA, CCNP – OSPF Not-So-Stubby Areas (NSSA)
The basic premise behind stub areas in OSPF is that if routers want to communicate to another area they need to send packets to the Area Border Router (ABR), a…
Continue readingCisco
Introduction to Routing
As you may or may not know, communication on the Internet uses packets for transmitting data. So, every time your computer communicates with a computer on the Internet, IP packets…
Continue readingNAT Introduction and basic configuration on a Cisco Router
What is NAT? NAT is short for “Network Address Translation”. The basic purpose of NAT is to translate private IP addresses which are used inside the company into public (global)…
Continue readingWhat is DHCP and how it makes our lives easier
DHCP stands for Dynamic Host Configuration Protocol. DHCP is a protocol that’s used to automatically configure the hosts on a network. In addition to configuring the hosts with an IP address, DHCP can also configure them with additional parameters, such as a subnet mask, or DNS server address.
Continue readingVirtual LANs – Introduction and basic operations
VLANs? That doesn’t sound like a Web Design or Development theme!” And you’re right! From now on, I’m adding Networking to the Blog categories, and VLANs are going to be…
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