Index: head/sys/netinet/icmp6.h
===================================================================
--- head/sys/netinet/icmp6.h
+++ head/sys/netinet/icmp6.h
@@ -635,6 +635,10 @@
 	uint64_t icp6s_badrs;		/* bad router solicitation */
 	uint64_t icp6s_badra;		/* bad router advertisement */
 	uint64_t icp6s_badredirect;	/* bad redirect message */
+	uint64_t icp6s_overflowdefrtr;	/* Too many default routers. */
+	uint64_t icp6s_overflowprfx;	/* Too many prefixes. */
+	uint64_t icp6s_overflownndp;	/* Too many neighbour entries. */
+	uint64_t icp6s_overflowredirect;/* Too many redirects. */
 };
 
 #ifdef _KERNEL
Index: head/usr.bin/netstat/inet6.c
===================================================================
--- head/usr.bin/netstat/inet6.c
+++ head/usr.bin/netstat/inet6.c
@@ -1055,6 +1055,14 @@
 	    "{N:/bad router advertisement message%s}\n");
 	p(icp6s_badredirect, "\t{:bad-redirect/%ju} "
 	    "{N:/bad redirect message%s}\n");
+	p(icp6s_overflowdefrtr, "\t{:default-routers-overflows/%ju} "
+	    "{N:/default routers overflow%s}\n");
+	p(icp6s_overflowprfx, "\t{:prefixes-overflows/%ju} "
+	    "{N:/prefix overflow%s}\n");
+	p(icp6s_overflownndp, "\t{:neighbour-entries-overflows/%ju} "
+	    "{N:/neighbour entries overflow%s}\n");
+	p(icp6s_overflowredirect, "\t{:redirect-overflows/%ju} "
+	    "{N:/redirect overflow%s}\n");
 	xo_close_container("errors");
 	p(icp6s_pmtuchg, "\t{:path-mtu-changes/%ju} {N:/path MTU change%s}\n");
 #undef p