pfSense

Fix flagged syntax errors.

Point to a checkip doc URL that exists now.

Fix braces. Issue #10246

NAT rule dst port reference corrections. Fixes #10246

When negating, the number of elements in $dstaddr_port is different. Do
not hardcode the index of the assumed last value, but calculate it
instead.

Otherwise the ruleset can have invalid entries like "port port" in...

Merge pull request #4177 from vktg/gremtu

Merge pull request #4184 from vktg/dhcpmaclimit

IPsec VTI IPv6 address correction. Fixes #9801

When setting up IPv6 VTI, assume /64 -- Previous code was assuming /32
which wasn't correct, and it can't be /128 either since the IPv6
addresses are not point-to-point like IPv4.

Ensure ALTQ bw is treated as int when factoring RRD values. Fixes #10248

Revert "Fix #10235"

This reverts commit 32218e9e1e69a0e2b91bcd829fcba04ec8586bdc.

Merge pull request #4188 from vktg/ipsecph2nohash