diff --git a/client/dhc6.c b/client/dhc6.c
index de77054..5431091 100644
--- a/client/dhc6.c
+++ b/client/dhc6.c
@@ -4328,6 +4328,10 @@ start_bound(struct client_state *client)
 			oldia = NULL;
 
 		for (addr = ia->addrs ; addr != NULL ; addr = addr->next) {
+          // Don't bind addresses that are expired or depreferred.
+          if (addr->flags & (DHC6_ADDR_EXPIRED | DHC6_ADDR_DEPREFFED))
+            continue;
+
 			if (oldia != NULL) {
 				if (ia->ia_type != D6O_IA_PD)
 					oldaddr = find_addr(oldia->addrs,