Expert insights on IPv4, networking, and IT security, from the experts at Brander Group. Everything you need to know about connectivity.

How to Configure DNS for ISPs

How to Configure DNS for Internet Service Providers (ISPs)

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Setting up DNS (Domain Name System) properly for Internet Service Providers (ISPs) requires configuring DNS servers and network infrastructure to ensure reliable & efficient domain name resolution for your end user subscribers.
How to Migrate from IPv4 to IPv62024

Thinking of Migrating to IPv6 from IPv4 Addresses?

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While both are viable options for enterprise networks, There are good reasons to migrate from IPv4 to IPv6; the current standard IP protocol.
What is OpenFlow? A Guide to Software-Defined Networking

What is OpenFlow? A Guide to Software-Defined Networking

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OpenFlow enables centralized network control by separating data and control planes, foundational for modern software-defined networking.
What is an Internet IP Transit Provider?2024

What is an Internet IP Transit Provider?

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Understand the essential role of Internet IP transit providers in maintaining optimal performance and reliable internet access.
How to Protect Against DDoS Attacks2024

Understanding and Preventing Distributed Denial-of-Service (DDoS) Attacks

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How to avoid DDoS (Distributed Denial-of-Service) attacks, that crash server, services and network operations by flooding them with traffic.
What is an ASN? Autonomous System Number2024

What is an ASN? Autonomous System Number

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Autonomous System Numbers (ASNs) play a key role in the internet's routing framework. ASNs enhance routing efficiency and policy management.

Pros and Cons: IPv4 vs. IPv6 Addresses

In the world of technology, connectivity has always been an essential aspect of daily life and business operations. Over the past decade, internet usage has skyrocketed, and with the increasing demand for data, IPv4 addresses, and their limitations have become a challenge. IPv6 was introduced as a potential solution, but is it ready to replace the aging IP standard protocol or are there better alternatives?
Creating a subnet by dividing the host identifier2024

How to Calculate IPv4 Subnet Masks

A simple guide to calculating netmask and subnet masks using available IP address and CIDR (Classless Inter-Domain Routing) notation.
What is ARIN? American Registry of Internet Numbers

Understanding the American Registry of Internet Numbers

ARIN is North America's Regional Internet Registry. One of five RIRs responsible for allocating and managing Internet resources.
RIPE NCC - All you need to know about the internet registry

Réseaux IP Européens (RIPE NCC) Explained

RIPE NCC is a nonprofit organization that manages IP addresses and ASNs in Europe, the Middle East, and Central Asia.