to avoid adding more custom patches on ports, in this case pear-Net_IPv6 I've added our own copies of _bin2Ip and _ip2Bin. If upstream accept to make these methods public, and probably rename them, we can revert my commit and rename calls to proper function.
Thanks!
https://github.com/pfsense/pfsense/commit/de6457345617a6518e58f3ebafa706948534b11a