NETWORKINGblog.apnic.net
APNIC 62 OPM: Just the facts
The APNIC 62 Open Policy Meeting will discuss various policy proposals related to IPv4 management, IPv6 allocation, and Internet abuse handling.
ipv433 items
Everything tagged ipv4, newest first. Tags come from the classifier reading each item's summary; 394 tags used 25 times or more have their own page.
FRI, 21 AUG 2026
THU, 06 AUG 2026
NETWORKINGpacketpushers.net
IPB205: Moving to Disable IPv4
Franck Martin and hosts Ed, Nick, and Tom discuss strategies, vendor collaboration, outage mitigation, and cultural shifts for retiring IPv4 and adopting IPv6.
MON, 20 JUL 2026
NETWORKINGblog.apnic.net
IPv6 address planning: From ‘bit conservation’ to ‘elegant alignment’
IPv6 addressing schemes should move away from IPv4-era conservation habits, as these are inefficient for IPv6's expansive address space.
MON, 15 JUN 2026
NETWORKINGblog.ipspace.net
SR-MPLS with OSPFv2
The Segment Routing workshop at ITNOG10 covered SR-MPLS with IS-IS, exploring simple, dual-stack, and unnumbered IPv4 interfaces, and plans to switch the routing protocol to OSPF while maintaining the same network topology.
MON, 01 JUN 2026
NETWORKINGblog.ipspace.net
SR-MPLS over Unnumbered Interfaces
The article explores the functionality of SR-MPLS over unnumbered IPv4 interfaces, confirming its viability with supported routing protocols using a consistent topology from a Segment Routing workshop.
THU, 21 MAY 2026
NETWORKINGblog.ipspace.net
Dual-Stack SR-MPLS
The dual-stack SR-MPLS demo at ITNOG10 explored assigning node segment identifiers to both IPv4 and IPv6 prefixes using a three-router network.
TUE, 07 APR 2026
POLICY & REGULATIONblog.apnic.net
APNIC Policy 101: How policy shapes operations — and how Policy Fellows are making participation easier
Internet number resource policy governs the management and distribution of IPv4, IPv6, and ASN resources in the Asia Pacific, impacting real-world operations.
THU, 02 APR 2026
NETWORKINGpacketpushers.net
N4N052: Multicast Part 2
Lenny Giuliano discusses multicast traffic's impact on Ethernet frame addressing, differences between IPv4 and IPv6 multicast, and introduces new hybrid multicast concepts in a podcast with Holly and Ethan.
THU, 12 MAR 2026
NETWORKINGblog.ipspace.net
IPv4 ECMP Works on Arista cEOS Release 4.35.2F
Arista cEOS has improved its IPv4 ECMP capabilities since 2011, now effectively distributing traffic across multiple nodes in release 4.35.02F, as demonstrated using the same lab topology from 2021.
WED, 25 FEB 2026
NETWORKINGnetworkingnerd.net
Context Is Expensive
Memorizing facts is straightforward, but understanding the context behind them is more complex and requires deeper cognitive engagement.
TUE, 24 FEB 2026
NETWORKINGblog.apnic.net
Balancing growth and efficiency — APNIC 61 Policy SIG deliberations on IPv6 and IPv4 allocation
At APNIC 61 in Jakarta, discussions focused on adjusting IPv6 and IPv4 delegations, balancing efficiency with policy education for newcomers.
WED, 18 FEB 2026
NETWORKINGfreeCodeCamp.org
Computer Networking Fundamentals Course
This course offers a comprehensive exploration of computer networking fundamentals, covering the entire networking stack, error detection, routing, and security, designed for GATE aspirants and computer science students, with a focus on practical problem-solving and theoretical understanding.
TUE, 20 JAN 2026
NETWORKINGblog.apnic.net
IP addresses through 2025
The evolution from IPv4 to IPv6 by 2025 highlights the network's adaptation to accommodate increasing device connectivity and address scarcity, reflecting a shift towards more efficient, scalable, and secure internet infrastructure.
MON, 05 JAN 2026
NETWORKINGblog.apnic.net
An interview with the creators of ipv4.games
ipv4.games is a platform that gamifies the IPv4 address space, created to engage users in understanding and exploring internet infrastructure through interactive gameplay.
MON, 22 DEC 2025
NETWORKINGblog.apnic.net
The IPv4 address swamp: The new normal
The 21st century has seen IPv4 allocations become more fragmented with smaller prefixes, raising concerns about potential impacts on Internet security.
MON, 08 DEC 2025
NETWORKINGCisco
Cisco Tech Talk: Explaining OSPF on Catalyst 1300x Switches – Part 2
This episode of Cisco Tech Talk explains how OSPF organizes large networks using areas, selecting the right OSPF version, and considerations for its use on Catalyst 1300 X switches, including administrative distance and security limitations.
TUE, 07 OCT 2025
NETWORKINGblog.apnic.net
Analysing the state of Happy Eyeballs implementations
The Happy Eyeballs algorithm facilitates IPv6 deployment by allowing clients to prefer IPv6 while swiftly reverting to IPv4 if needed, ensuring a seamless user experience, though its implementation scope is uncertain.
THU, 25 SEPT 2025
NETWORKINGpacketpushers.net
IPB184: IPv6 Basics: Dual-Stack
The episode explores the concept of dual-stack, which involves running IPv4 and IPv6 protocols simultaneously, addressing common questions and clarifying its definition.
THU, 11 SEPT 2025
NETWORKINGrouterfreak.com
Deep Dive into CGNAT
Carrier grade network address translation (CGNAT) helps manage limited IPv4 addresses and facilitates the transition to IPv6.
MON, 19 MAY 2025
NETWORKINGblog.cloudflare.com
Your IPs, your rules: enabling more efficient address space usage
Cloudflare's previous requirement for customers to bring new IPv4 address ranges for multiple services was costly and complicated, prompting a need for more efficient resource management.
THU, 23 JAN 2025
NETWORKINGpacketpushers.net
N4N010: Why Was the Colon Chosen as a Delimiter in IPv6?
Bob Hinden shares insights on the development of IPv6, detailing his journey from ARPANET to addressing challenges in transitioning from IPv4.
MON, 13 JAN 2025
NETWORKINGblog.ipspace.net
netlab: Multi-Site VLANs
Create a simple multi-site network using netlab with two sites, each having a layer-3 switch, VLAN 100, and two hosts, connected by a layer-3 IPv4 link.
SUN, 12 JAN 2025
NETWORKINGblog.apnic.net
IP addresses through 2024
In 2024, the transition from IPv4 to IPv6 highlights the evolving demands and complexities of modern network infrastructures.
FRI, 20 DEC 2024
NETWORKINGblog.apnic.net
Visualizing the scale differences of IPv4 and IPv6
IPv4 and IPv6 differ significantly in scale, with IPv6 offering a vastly larger address space, challenging to visualize clearly.
TUE, 29 OCT 2024
NETWORKINGblog.ipspace.net
EVPN Designs: EVPN EBGP over IPv4 EBGP
The blog post introduces an advanced EVPN design, EBGP-over-EBGP, highlighting vendor strategies to enhance existing technologies while maintaining a modern appearance.
WED, 16 OCT 2024
NETWORKINGblog.apnic.net
[Podcast] The back of the class: Looking at 240/4 reachability
Geoff Huston explores the feasibility and implications of utilizing the 240.0.0.0/4 class-E IP address space for routing purposes.
THU, 10 OCT 2024
NETWORKINGblog.ipspace.net
IS-IS Labs: Explore IS-IS Data Structures
The initial IS-IS lab exercise involved configuring IPv4 routing and exploring the resulting network data structures.
MON, 30 SEPT 2024
NETWORKINGblog.ipspace.net
IS-IS Labs: Configure IS-IS Routing for IPv4
The first IS-IS lab exercise involves configuring IS-IS routing for IPv4, correcting vendor defaults, and learning about OSI addresses.
NETWORKINGblog.apnic.net
ICYMI: Backblaze has announced support for IPv6
A recent IPv6 deployment reveals crucial insights into its implementation, challenges, and the future of internet connectivity.
SAT, 21 SEPT 2024
NETWORKINGblog.cloudflare.com
Cloudflare incident on September 17, 2024
On September 17, 2024, Cloudflare's routine maintenance caused a one-hour outage by stopping 15 IPv4 prefixes, affecting Business plan websites.
MON, 16 SEPT 2024
NETWORKINGblog.apnic.net
Hypergiants are increasingly serving more content via local IPv6 networks
A groundbreaking study evaluates IPv6 off-net deployment and latency compared to IPv4 among 14 major internet companies.
WED, 21 AUG 2024
NETWORKINGblog.apnic.net
VPP with Babel
The article explains how to use the IGP Babel protocol to efficiently conserve and manage IPv4 addresses within networks.
MON, 01 JUL 2024
NETWORKINGblog.ipspace.net
Netlab Examples in GitHub Codespaces
Setting up GitHub codespaces for netlab examples simplifies testing IPv4 next-hop details for EBGP sessions, streamlining the process significantly.
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