QUOTE(kwss @ Jul 28 2025, 12:53 PM)
Regarding older network equipment having problem with IPv6, it is indeed true and the only way to solve the problem is unfortunately spending money to buy newer model if there is no more firmware upgrade.
For IPv6 transition, it is also true that there is absolutely zero advantage to be a first-mover. People who transition last will benefit from all the knowledge that became available, a strong ecosystem and not needing to maintain a dual-stack setup for a long time.
However, this is only true if you are currently holding sufficient IPv4 address and has no plan to scale your network. This applies mainly to small to medium businesses. If scaling is a concern, like cloud and telco, there is no way you can acquire more IPv4 address indefinitely.
For the average user, it is best to just migrate, especially if you do not own your own ASN and IPv4 address. IPv6 offers the following benefit:
- No need to NAT at all, not CGNAT, not on your router
- No need to perform hole punching when doing anything P2P like video call, games, etc
- No header checksum
- Ability to run native IPv6 on multiple subnet (if telco comply with RIPE BCOP-690)
Is it even possible to use P2P programs like games and torrent over IPv6 now? I thought the support for it is still limited since people on P2P are mostly on IPv4.
Right now I am doing my best to study RouterOS, since I plan to get a Mikrotik router (heard their stability + long term OS and firmware support is decent) to replace my TP-Link one. It is quite intimidating and I need to find some way to get to know it better before I set it up to the TM ONU. Got family members who WFH so we can't have any downtime.
QUOTE(kwss @ Jul 28 2025, 12:53 PM)
As you can see, there are various reason why people want to keep IPv4 alive from the business perspective, or simply because people just hope IPv4 will continue to exist until they retire so they don't have to learn IPv6.
On the technical perspective, maintaining dual-stack and the continuous renumbering is tedious and just kick the can down the road. There won't be additional IPv4 address and IPv6 is the only way to go.
I just think it's a bit absurd that of all things, this is the one that is facing so many issues even though it is absolutely necessary in the long term. Even people who prefer older Windows versions like 7 over newer ones like 10/11 are not as stubborn, and with W10 approaching EoL, you can see many even moving to Linux which is a completely different OS.
A future where everyone is behind CGNAT would be awful.
This post has been edited by blackbox14: Jul 28 2025, 03:44 PM