network_manager: Assign routes to ip section by ip version

Fixes canonicalGH-4518
holmanb · Oct 19, 2023 · 5ee7253 · 5ee7253
1 parent 9a401b4
commit 5ee7253
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/cloudinit/net/network_manager.py b/cloudinit/net/network_manager.py
@@ -141,9 +141,14 @@ def _add_route(self, family, route):
         Adds a ipv[46].route<n> property.
         """
 
+        # family of the gateway must match the family of the route
+        gateway_family = "ipv6" if is_ipv6_address(route.get("gateway")) else "ipv4"
+        if gateway_family != family:
+            return
         value = route["network"] + "/" + str(route["prefix"])
         if "gateway" in route:
             value = value + "," + route["gateway"]
+
         self._add_numbered(family, "route", value)
 
     def _add_nameserver(self, dns):