From 21a7bd2d9103ddcc8d9f7a44d3004e2f896fd5ba Mon Sep 17 00:00:00 2001
From: Adrien Banlin <a.banlin@alphalink.fr>
Date: Fri, 8 Apr 2022 15:46:52 +0200
Subject: [PATCH] address: check interface exists before settling dad

---
 ifupdown2/addons/address.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ifupdown2/addons/address.py b/ifupdown2/addons/address.py
index 65e5397..60a47df 100644
--- a/ifupdown2/addons/address.py
+++ b/ifupdown2/addons/address.py
@@ -1132,6 +1132,8 @@ class address(AddonWithIpBlackList, moduleBase):
         # settle dad
         if not self.ipv6_dad_handling_enabled:
             return
+        if not self.cache.link_exists(ifaceobj.name):
+            return
         ifname = ifaceobj.name
         ifaceobjs = self._get_ifaceobjs(ifaceobj, ifaceobj_getfunc)
         addr_supported, user_addrs_list = self.__get_ip_addr_with_attributes(ifaceobjs, ifname)