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Date:      Thu, 26 Jan 2017 04:44:18 +0000 (UTC)
From:      Colin Percival <cperciva@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org
Subject:   svn commit: r312790 - stable/11/release/tools
Message-ID:  <201701260444.v0Q4iIaE096111@repo.freebsd.org>

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Author: cperciva
Date: Thu Jan 26 04:44:18 2017
New Revision: 312790
URL: https://svnweb.freebsd.org/changeset/base/312790

Log:
  MFC r312214: Enable IPv6 on EC2 AMIs.

Modified:
  stable/11/release/tools/ec2.conf
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/release/tools/ec2.conf
==============================================================================
--- stable/11/release/tools/ec2.conf	Thu Jan 26 03:05:27 2017	(r312789)
+++ stable/11/release/tools/ec2.conf	Thu Jan 26 04:44:18 2017	(r312790)
@@ -6,7 +6,7 @@
 # Packages to install into the image we're creating.  This is a deliberately
 # minimalist set, providing only the packages necessary to bootstrap further
 # package installation as specified via EC2 user-data.
-export VM_EXTRA_PACKAGES="ec2-scripts firstboot-freebsd-update firstboot-pkgs"
+export VM_EXTRA_PACKAGES="ec2-scripts firstboot-freebsd-update firstboot-pkgs dual-dhclient"
 
 # Set to a list of third-party software to enable in rc.conf(5).
 export VM_RC_LIST="ec2_configinit ec2_fetchkey ec2_ephemeralswap ec2_loghostkey firstboot_freebsd_update firstboot_pkgs"
@@ -39,8 +39,9 @@ vm_extra_pre_umount() {
 	# time; expand our filesystem to fill the disk.
 	echo 'growfs_enable="YES"' >> ${DESTDIR}/etc/rc.conf
 
-	# EC2 instances use DHCP to get their network configuration.
-	echo 'ifconfig_DEFAULT="SYNCDHCP"' >> ${DESTDIR}/etc/rc.conf
+	# EC2 instances use DHCP to get their network configuration.  IPv6
+	# requires accept_rtadv.
+	echo 'ifconfig_DEFAULT="SYNCDHCP accept_rtadv"' >> ${DESTDIR}/etc/rc.conf
 
 	# Unless the system has been configured via EC2 user-data, the user
 	# will need to SSH in to do anything.
@@ -51,6 +52,10 @@ vm_extra_pre_umount() {
 	# via EC2 user-data.
 	echo 'firstboot_pkgs_list="awscli"' >> ${DESTDIR}/etc/rc.conf
 
+	# Enable IPv6 on all interfaces, and use DHCP on both IPv4 and IPv6.
+	echo 'ipv6_activate_all_interfaces="YES"' >> ${DESTDIR}/etc/rc.conf
+	echo 'dhclient_program="/usr/local/sbin/dual-dhclient"' >> ${DESTDIR}/etc/rc.conf
+
 	# The EC2 console is output-only, so while printing a backtrace can
 	# be useful, there's no point dropping into a debugger or waiting
 	# for a keypress.



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