diff --git a/pkg/harvester/l10n/en-us.yaml b/pkg/harvester/l10n/en-us.yaml
index c22e0f23..13ce1c12 100644
--- a/pkg/harvester/l10n/en-us.yaml
+++ b/pkg/harvester/l10n/en-us.yaml
@@ -298,6 +298,7 @@ harvester:
     phase: Phase
     attachedVM: Attached Virtual Machine
     cpuManager: CPU Manager
+    routeConnectivityTooltip: Connectivity between the VM network and the management network, which the Harvester nodes are connected to.
     fingerprint: Fingerprint
     value: Value
     actions: Actions
diff --git a/pkg/harvester/list/harvesterhci.io.networkattachmentdefinition.vue b/pkg/harvester/list/harvesterhci.io.networkattachmentdefinition.vue
index ac2ec748..ae6bc9f3 100644
--- a/pkg/harvester/list/harvesterhci.io.networkattachmentdefinition.vue
+++ b/pkg/harvester/list/harvesterhci.io.networkattachmentdefinition.vue
@@ -112,6 +112,7 @@ export default {
           value:         'connectivity',
           labelKey:      'tableHeaders.routeConnectivity',
           formatter:     'NetworkRouteConnectivity',
+          tooltip:       'harvester.tableHeaders.routeConnectivityTooltip',
           formatterOpts: { arbitrary: true },
           width:         130,
         },