change ipv6 pool

test/terraform/networks.tf

@@ -10,6 +10,6 @@ resource "docker_network" "danet" {
   name = "danet-${random_id.server.hex}"
   ipv6 = true
   ipam_config {
-    subnet = "fd::/64"
+    subnet = "fdfe::/64"
   }
 }
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