Disabling IPv6 on OpenWrt

[vgaetera]

Are there benefits to use IPv6 in a home router?

I would approach this slightly differently. If your ISP does a reasonable job with providing IPv6 access without any major issues and if you can get a sane configuration established, there is no reason not to use IPv6. We all know that the IPv4 pools are exhausted, that isn't yet an issue for larger servers that expect lots of customers (as they can solve the issue with money, progressively more money the scarcer IPv4 addresses get) - but this is increasingly becoming an issue for home users. E…

Remove all ipv6

This is not really a supported configuration anymore, if it breaks, you get to keep the pieces. Be aware that partial IPv6 removals can be dangerous (as in kernel support for IPv6, but firewall removed…).

Disable "Active DHCPv6 Leases" - only "Active DHCP Leases"

It's nearly impossible to disable IPv6 completely nowadays. Even if you recompile the firmware and remove the IPv6-related code, your LAN devices may still use IPv6 LLA to communicate with each other. It's easier to accept and embrace IPv6, the sooner the better.