Fix IPv6 BOGONs RAW Rules

[jonathanio]

The BOGON rules in the raw/prerouting chain seem to block significant types of traffic, including DHCPv6 traffic, causing issues.

The rules must be re-evaluated regarding what they capture and, subsequently, block, with a few to ensure that regular legitimate traffic is allowed through as expected.

Notes

Additional internal work may be needed to ensure IPv6 traffic is forwarded from the current edge router to the new edge router to facilitate testing.

Acceptance Criteria

• Review the BOGONs for IPv6 and ensure that the allow and blocked lists contain everything they should do
• Review the :bogon:check chain and determine why legitimate traffic is blocked.

[jonathanio]

BOGOS are a useful security feature, but I'm going to work on other things, such as #2 and #3 for the time being as they're more important.