Index: sys/netpfil/ipfw/ip_fw_dynamic.c
===================================================================
--- sys/netpfil/ipfw/ip_fw_dynamic.c
+++ sys/netpfil/ipfw/ip_fw_dynamic.c
@@ -2441,6 +2441,7 @@
 static void
 dyn_send_keepalive_ipv4(struct ip_fw_chain *chain)
 {
+	struct epoch_tracker et;
 	struct mbufq q;
 	struct mbuf *m;
 	struct dyn_ipv4_state *s;
@@ -2468,8 +2469,10 @@
 		}
 	}
 	IPFW_UH_RUNLOCK(chain);
+	NET_EPOCH_ENTER(et);
 	while ((m = mbufq_dequeue(&q)) != NULL)
 		ip_output(m, NULL, NULL, 0, NULL, NULL);
+	NET_EPOCH_EXIT(et);
 }
 
 #ifdef INET6
@@ -2548,6 +2551,7 @@
 static void
 dyn_send_keepalive_ipv6(struct ip_fw_chain *chain)
 {
+	struct epoch_tracker et;
 	struct mbufq q;
 	struct mbuf *m;
 	struct dyn_ipv6_state *s;
@@ -2575,8 +2579,10 @@
 		}
 	}
 	IPFW_UH_RUNLOCK(chain);
+	NET_EPOCH_ENTER(et);
 	while ((m = mbufq_dequeue(&q)) != NULL)
 		ip6_output(m, NULL, NULL, 0, NULL, NULL, NULL);
+	NET_EPOCH_EXIT(et);
 }
 #endif /* INET6 */