[FS#500] firewall3: missing targets with IPv6 NAT

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - Joseph C. Sible (josephcsible) 

Attached to Project - LEDE Project
Summary - firewall3: missing targets with IPv6 NAT
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - lede-17.01
Due in Version - Undecided
Due Date - Undecided
Details - When the kmod-ipt-nat6 package is installed, running /etc/init.d/firewall reload or /etc/init.d/firewall restart produces warnings that targets are missing:
 * Populating IPv6 nat table
   * Zone 'lan'
Warning: fw3_ipt_rule_append(): Can't find target 'prerouting_lan_rule'
Warning: fw3_ipt_rule_append(): Can't find target 'postrouting_lan_rule'
   * Zone 'wan'
Warning: fw3_ipt_rule_append(): Can't find target 'prerouting_wan_rule'
Warning: fw3_ipt_rule_append(): Can't find target 'postrouting_wan_rule'
Warning: fw3_ipt_rule_append(): Can't find target 'prerouting_rule'
Warning: fw3_ipt_rule_append(): Can't find target 'postrouting_rule'
I tested this on an Archer C7 v2 running LEDE 17.01.0rc2.

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=500