1 files changed, 11 insertions, 0 deletions
diff --git a/pkg/tcpip/tcpip.go b/pkg/tcpip/tcpip.go
index c27c0dd89..707fda4d2 100644
--- a/pkg/tcpip/tcpip.go
+++ b/pkg/tcpip/tcpip.go
@@ -84,6 +84,17 @@ var (
 	errSubnetAddressMasked  = errors.New("subnet address has bits set outside the mask")
 )
 
+// ErrSaveRejection indicates a failed save due to unsupported networking state.
+// This type of errors is only used for save logic.
+type ErrSaveRejection struct {
+	Err error
+}
+
+// Error returns a sensible description of the save rejection error.
+func (e ErrSaveRejection) Error() string {
+	return "save rejected due to unsupported networking state: " + e.Err.Error()
+}
+
 // A Clock provides the current time.
 //
 // Times returned by a Clock should always be used for application-visible