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Comparison of Distance Vector vs Link State Dynamic Routing Protocols

complex network diagram

Dynamic routing protocols are used by Layer 3 network devices to automatically share routing information.  Various routing protocols have been developed over the years, but most fall into one of three categories: Interior Gateway Protocol – Distance vector, such as EIGRP or RIP Interior Gateway Protocol – Link state, such as OSPF or IS-IS Exterior […]

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Filed Under: General Networking

Top 10 Network Administrators Software Tools (Free&Paid)

network engineer

A carpenter is only as good as his hammer.  A knight is only as good as his sword.  A writer is only as good as his pen.  These experts would amount to very little if they didn’t have their respective tools to get their jobs done well.  Similarly, a network administrator is only as good […]

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Filed Under: Software

Prevent Spoofing Attacks on Cisco ASA using RPF

asa rpf network

A common attack found on TCP/IP networks is IP spoofing. This is usually used for Denial-of-Service, Identity hiding, or even to bypass firewalls or Access-Lists security rules. The spoofing attack works like that: A malicious attacker sends packets towards a target host. The attacker disguises itself by inserting a fake source IP into the packet. […]

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Filed Under: Cisco ASA Firewall Configuration

Comparison of H323 vs SIP Protocols Used in VoIP and IP Telephony

comparing h323 and sip protocols

Voice over IP (VoIP) is a technology that allows you to transmit voice over an IP network.  This enables both telephony and data to be transmitted over the same network packet-based infrastructure.  There are two fundamental protocols used to transmit the signaling that is necessary to make IP telephony operate correctly.  These protocols are Session […]

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Filed Under: IP Telephony

Comparison and Differences Between IPv4 vs IPv6

ipv4 and ipv6 addresses

The Internet Protocol (IP) is the fundamental protocol that enables end-to-end communication between hosts on the Internet. Living in the Network Layer of the OSI model, IP is able to reach the intended host by simply using the destination IP address and the routing protocols that have been configured on the networks between the hosts. […]

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Filed Under: General Networking

A Complete Guide to Scaling your Network Monitoring Solution

network operation center

If your organization is growing, you know first-hand how important it is to have a network monitoring solution. But what do you do when your network starts to outgrow your current monitoring solution? Here is what you need to know about scaling based on your organizational goals. Your organization can efficiently tackle the ongoing and […]

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Filed Under: Software

Comparison of NAT vs PAT in TCP/IP Networks for IP Translation

comparing nat vs pat address translation diagram

Network Address Translation (NAT) is a feature that enables the translation of IPv4 addresses.  It is most often used to translate private IPv4 addresses to public routable IPv4 addresses.  This feature has almost singlehandedly vastly increased the longevity of the IPv4 protocol as the primary Network Layer protocol running on the Internet, since it resolves […]

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Filed Under: General Networking

Comparison of OSPF vs RIP/RIPv2 Routing Protocols in IP Networks

comparing ospf vs rip protocols

Open Shortest Path First (OSPF) and Routing Information Protocol (RIP) are two of the most well-known Internal Gateway Protocols (IGPs) among network professionals and enthusiasts alike.  Both are among the oldest routing protocols developed for IP networks, but they have evolved in very different ways, and are ultimately used today for very different purposes. Let’s […]

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Filed Under: General Networking

Comparison of EIGRP vs OSPF Routing Protocols

ospf vs eigrp comparison

Open Shortest Path First (OSPF) and Enhanced Interior Gateway Protocol (EIGRP) are two of the most popular Internal Gateway Protocols (IGPs) employed in today’s modern IP networks.  Both are mature protocols, having been around for decades, and are extremely reliable, flexible, and highly configurable.  And yet, they are surprisingly dissimilar in their architecture, implementation, and […]

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Filed Under: General Networking

12 Best Computer Networking Books for Beginners & Experts

computer networking textbooks

I have read tens of books (both in ebook format and also hard copy textbooks) in my networking professional career over the last 18 years. In fact, all of my preparation for my Cisco and other IT certifications was based on book studying (in addition to hands-on practice of course). Personally, I believe that having […]

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Filed Under: General Networking, Product Reviews

How to Setup Cisco Meraki WiFi Access Point Devices (With Pictures)

setting up cisco meraki ap

In this tutorial we will describe how to setup a Cisco Meraki WiFi Access Point (AP) together with several other useful details, so let’s get started. A Meraki access point is different to a Cisco AireOS Access point because it doesn’t need a separate Wireless LAN Controller or an embedded controller such as Mobility Express […]

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Filed Under: Cisco Wireless

10 Best Network Traffic Analyzer (NTA) Software Tools

network traffic analysis tools

If you’ve ever wondered why your company’s network seems to slow down at times, or how efficiently your employees are using their networked devices, then it’s time you implement a network analysis strategy. Network Traffic Analyzer (NTA) tools can help you find bottlenecks in traffic, analyze what types of network traffic is being used within […]

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Filed Under: Software

11 Best Alternatives to Putty as SSH and Telnet Clients (For Connecting Remotely to Devices)

ssh clients similar to putty

PuTTY is a free terminal emulation tool that’s been available for 20 years. Originally released for Microsoft Windows, this versatile remote administration tool can be used to access workstations, servers, network devices etc using various protocols such as secure shell connection (SSH), Telnet, Rlogin etc. While it continues to be popular for accessing network devices […]

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Filed Under: Software

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About Networks Training

We Provide Technical Tutorials and Configuration Examples about TCP/IP Networks with focus on Cisco Products and Technologies. This blog entails my own thoughts and ideas, which may not represent the thoughts of Cisco Systems Inc. This blog is NOT affiliated or endorsed by Cisco Systems Inc. All product names, logos and artwork are copyrights/trademarks of their respective owners.

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