Index: sys/netipsec/xform_esp.c
===================================================================
--- sys/netipsec/xform_esp.c
+++ sys/netipsec/xform_esp.c
@@ -94,7 +94,7 @@
     struct espstat, espstat,
     "ESP statistics (struct espstat, netipsec/esp_var.h");
 
-static struct timeval deswarn, blfwarn, castwarn, camelliawarn;
+static struct timeval deswarn, blfwarn, castwarn, camelliawarn, tdeswarn;
 
 static int esp_input_cb(struct cryptop *op);
 static int esp_output_cb(struct cryptop *crp);
@@ -164,6 +164,10 @@
 		if (ratecheck(&deswarn, &ipsec_warn_interval))
 			gone_in(13, "DES cipher for IPsec");
 		break;
+	case SADB_EALG_3DESCBC:
+		if (ratecheck(&tdeswarn, &ipsec_warn_interval))
+			gone_in(13, "DES cipher for IPsec");
+		break;
 	case SADB_X_EALG_BLOWFISHCBC:
 		if (ratecheck(&blfwarn, &ipsec_warn_interval))
 			gone_in(13, "Blowfish cipher for IPsec");