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From f4a9b9bce8e59a59218275495993bb17e5d86da0 Mon Sep 17 00:00:00 2001
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From: Gris Ge <fge@redhat.com>
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Date: Thu, 5 Sep 2019 21:06:51 +0800
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Subject: [PATCH 2/2] nm/ipv6: Enforce IPv6-RA and DHCPv6 address base on MAC
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When enslave interface to linux bridge, to ensure the bridge
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get the same IPv6 address from IPv6-RA and DHCPv6, change
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the 'dhcp_duid' to LL(Link-layer address, RFC 3315) and
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'addr_gen_mode' to EUI64.
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Signed-off-by: Gris Ge <fge@redhat.com>
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---
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libnmstate/nm/ipv6.py | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/libnmstate/nm/ipv6.py b/libnmstate/nm/ipv6.py
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index 92955ab..9d0bc9b 100644
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--- a/libnmstate/nm/ipv6.py
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+++ b/libnmstate/nm/ipv6.py
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@@ -112,6 +112,12 @@ def create_setting(config, base_con_profile):
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if not setting_ip:
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setting_ip = nmclient.NM.SettingIP6Config.new()
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+ # Ensure IPv6 RA and DHCPv6 is based on MAC address only
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+ setting_ip.props.addr_gen_mode = (
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+ nmclient.NM.SettingIP6ConfigAddrGenMode.EUI64
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+ )
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+ setting_ip.props.dhcp_duid = 'll'
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+
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if not config or not config.get(InterfaceIPv6.ENABLED):
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setting_ip.props.method = nmclient.NM.SETTING_IP6_CONFIG_METHOD_IGNORE
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return setting_ip
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--
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2.23.0
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