diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh
index c0f1a88..d1dd673 100755
--- a/dracut-module-setup.sh
+++ b/dracut-module-setup.sh
@@ -293,6 +293,12 @@ kdump_setup_netdev() {
     _static=$(kdump_static_ip $_netdev $_srcaddr)
     if [ -n "$_static" ]; then
         _proto=none
+    elif is_ipv6_address $_srcaddr; then
+        if is_ipv6_auto $_netdev; then
+            _proto=auto6
+        else
+            _proto=dhcp6
+        fi
     else
         _proto=dhcp
     fi
diff --git a/kdump-lib.sh b/kdump-lib.sh
index d981c4f..ac4dc67 100755
--- a/kdump-lib.sh
+++ b/kdump-lib.sh
@@ -310,6 +310,18 @@ is_atomic()
     grep -q "ostree" /proc/cmdline
 }
 
+# fixme, try the best to decide whether the ipv6 addr is allocated by slaac or dhcp6
+is_ipv6_auto()
+{
+    local _netdev=$1
+    local _auto=$(cat /proc/sys/net/ipv6/conf/$_netdev/autoconf)
+    if [ $_auto -eq 1 ]; then
+        return 0
+    else
+        return 1
+    fi
+}
+
 is_ipv6_address()
 {
     echo $1 | grep -q ":"