Use the physical bridges set up by the Agent

Change-Id: Id5e0c8552c348e03292e907d2f8991167062cfce
Fix query filter

Change-Id: I282f76ab2ee7ef796ce65e729fc806a0c14555e9
Fix ICMPv6 packets

Previous code was appending to the OUTPUT rules for a port, not
the INPUT

Change-Id: Ibdcdfd9f5374d642f2d1e81cbee41bcec329d81b
Only accept certain icmpv6 types inbound

Change-Id: I1b1350da3ddb1d353d0956e6f349dc2944a382bc
Flake8 and fixed unit tests

Change-Id: I151352bbf2920fbefcfedf84b6556b4eefd26b2c
Fix config section

Change-Id: If56340b01c42ff2fbeee77866ae334529094ed3e
PEP8

Change-Id: I03de6d3f7cdf0e6e5d6880ae3a3f47a8d30b5a3e
Change to store in constants

Change-Id: Idc5e024e7699e9d00e6367aa081c294a201317d5