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Ask HN: Are you missing out on anything by not serving IPv6 from your webserver?

9 points by johnnyApplePRNG 5y ago

Are there any ISPs out there that only provide IPV6 connectivity to their clients I suppose is my question?

Havoc 5y ago
No. Even among the top 100 sites a fair few are 4 only
LinuxBender 5y ago
Not as far as I know. I doubt anyone would care about my hobby sites but my last work-place was used by thousands of businesses and we only used ipv4 on the load balancers and CDN endpoints. No issues, no customer complaints. AFAIK no customers asked for ipv6. If anything we had to support really old ciphers and had to make special firewalled API vips for customers that needed things like SSLv3 until they could get their vendors to upgrade their client libraries.
toast0 5y ago
Some mobile networks are IPv6 first, and only have IPv4 through NAT64 and similar mechanisms. At times, those may be capacity limited, and v4 service can get pretty iffy. (Many moons ago, I experienced an ISP with a less than second inactivity timeout on TCP connections to our servers; that was lots of fun, but seemed to be an issue on their NAT64 gateway, and wouldn't have been an issue on v6). You're also likely to see a lot more IP sharing between users on v4 than v6.
- toast0 5y ago
  > I experienced an ISP with a less than second inactivity timeout on TCP connections to our servers I had meant to write less than 10 second inactivity timeout. I don't recall exactly how bad it was, but I don't think it went down to under one second.
osivertsson 5y ago
My VPN solution is that I run Wireguard on a server with only IPv6 connectivity. So when I am connected through that VPN I see some breakage, e.g. github and some CDNs not working.
- miyuru 5y ago
  Same here for the work VPN which has multiple IPv4 addresses and wireguard interfaces. IPv6 works effortless for all traffic, while IPv4 is only limited to internal.
miyuru 5y ago
There was one reddit thread with a person saying that his ISP was IPv6 only and only dual stacked sites loaded for him. apparently it was small rural US ISP, but the user did not gave more info.

Are there any ISPs out there that only provide IPV6 connectivity to their clients I suppose is my question?

Havoc 5y ago

No. Even among the top 100 sites a fair few are 4 only

LinuxBender 5y ago

Not as far as I know. I doubt anyone would care about my hobby sites but my last work-place was used by thousands of businesses and we only used ipv4 on the load balancers and CDN endpoints. No issues, no customer complaints. AFAIK no customers asked for ipv6. If anything we had to support really old ciphers and had to make special firewalled API vips for customers that needed things like SSLv3 until they could get their vendors to upgrade their client libraries.

toast0 5y ago

Some mobile networks are IPv6 first, and only have IPv4 through NAT64 and similar mechanisms. At times, those may be capacity limited, and v4 service can get pretty iffy. (Many moons ago, I experienced an ISP with a less than second inactivity timeout on TCP connections to our servers; that was lots of fun, but seemed to be an issue on their NAT64 gateway, and wouldn't have been an issue on v6). You're also likely to see a lot more IP sharing between users on v4 than v6.

toast0 5y ago
> I experienced an ISP with a less than second inactivity timeout on TCP connections to our servers I had meant to write less than 10 second inactivity timeout. I don't recall exactly how bad it was, but I don't think it went down to under one second.

osivertsson 5y ago

My VPN solution is that I run Wireguard on a server with only IPv6 connectivity. So when I am connected through that VPN I see some breakage, e.g. github and some CDNs not working.

miyuru 5y ago
Same here for the work VPN which has multiple IPv4 addresses and wireguard interfaces. IPv6 works effortless for all traffic, while IPv4 is only limited to internal.

miyuru 5y ago

There was one reddit thread with a person saying that his ISP was IPv6 only and only dual stacked sites loaded for him. apparently it was small rural US ISP, but the user did not gave more info.