The Future of Networking: Emerging Protocols to Watch in 2025
As our digital ecosystem continues to evolve, networking protocols—the foundational rules that dictate how data is transmitted across networks—are becoming increasingly critical. The demand for faster, more secure, and highly efficient data transmission is pushing innovation to new heights. Whether …
Patreon Post: Mikrotik tagging incoming routes with a community
This content is for Patreon subscribers of the j2 blog. Please consider becoming a Patreon subscriber for as little as $1 a month. This helps to provide higher quality content, more podcasts, and other goodies on this blog.To view this …
Lined Article: implementing a new network structure
Stephen Klenert has an article on implementing a new network structure.Implementing a new network infrastructure is a complex endeavor, involving coordination with vendors, colocation operators, and various stakeholders. Success depends on meticulous planning, attention to detail, and the ability to …
The Story behind 4.2.2.2
https://web.archive.org/web/20130215021006/https://www.tummy.com/articles/famous-dns-server/ Chances are that if you’re a network operator you know the IP address 4.2.2.2. It’s an easy to type and easy to remember address, which since 1998 has been a “beefy” DNS service responding to the public Internet. Since …
IPv4 Subnet Mask Cheat Sheet: A Handy Guide
IPv4 Subnet Mask Cheat Sheet CIDR Notation Subnet Mask Total Subnets Hosts per Subnet (usable) /8 255.0.0.0 1 16,777,214 /9 255.128.0.0 2 8,388,606 /10 255.192.0.0 4 4,194,302 /11 255.224.0.0 8 2,097,150 /12 255.240.0.0 16 1,048,574 /13 255.248.0.0 32 524,286 /14 …
Understanding Switch Trunk Ports: Cisco vs. Dell and Other Vendors
In modern networking, switch trunk ports play a vital role in ensuring smooth communication across VLANs (Virtual Local Area Networks). While the concept of a trunk port is consistent across networking vendors, the implementation details can vary. In this blog …
What is the Global BGP Routing Table?
The Global BGP Routing Table is a comprehensive database that contains all the IP address prefixes (routes), which are advertised by ASNs, and the associated paths to reach them across the internet.
Securing MikroTik Routers with SSH Keys
This blog post walks you through the steps to configure SSH key-based authentication on MikroTik routers with practical examples.
Setting Up a BGP Peer with Mikrotik RouterOS Version 7
Border Gateway Protocol (BGP) is an essential protocol for internet routing, enabling autonomous systems (AS) to communicate and exchange routing information. Mikrotik RouterOS Version 7 introduced significant enhancements to its BGP implementation, making it more powerful and versatile. This guide …
Understanding Autonomous System Numbers (ASNs) in BGP
A critical component of BGP’s functionality is the Autonomous System Number (ASN). But what exactly is an ASN, and why is it so important?