Could IPv6 have an edge over IPv4?
The article discusses the advantages of IPv6 over IPv4, particularly in addressing issues related to overlapping subnets. It highlights how IPv6's globally routable addresses can prevent conflicts that often occur with IPv4. The author shares personal experiences with VPN connectivity challenges due to subnet conflicts, illustrating the practical benefits of IPv6.
- ▪IPv6 offers a larger address space and eliminates the need for NAT, which is a limitation of IPv4.
- ▪The author faced connectivity issues while using a VPN due to conflicting subnets between their home network and the Airbnb Wi-Fi.
- ▪IPv6 addresses are globally routable, reducing the chances of subnet conflicts and improving peer-to-peer communication.
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Could IPv6 have an edge over IPv4? Sedat Kapanoglu 20 May 2026 — 6 min read Share Photo by Yuriy Vertikov / Unsplash I wrote about my adventures on IPv6 before. Basically, it seemed like IPv6 solved address space limitation problem with a larger address space while IPv4 just used NAT, and that meant IPv6 didn't add much value because IPv4 practically didn't have any address space concerns anymore. If we ever filled the 64-bit address space of NAT, we could just add another layer of NAT and have a 96-bit address space, and ad infinitum. Oh wait, we already did. CGNAT is exactly that.Yes, IPv6 has other niceties like stateless auto-configuration that removes the need for DHCP, an all routable address space, allegedly better routing and multicast, but it has lots of quirks too.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at SSG's.
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