diff --git a/src/dhcp-common.c b/src/dhcp-common.c
index a769fe9..ea449cb 100644
--- a/src/dhcp-common.c
+++ b/src/dhcp-common.c
@@ -649,7 +649,7 @@ static const struct opttab_t opttab6[] = {
   { "sntp-server", 31,  OT_ADDR_LIST },
   { "information-refresh-time", 32, OT_TIME },
   { "FQDN", 39, OT_INTERNAL | OT_RFC1035_NAME },
-  { "ntp-server", 56,  0 },
+  { "ntp-server", 56, 0 /* OT_ADDR_LIST | OT_RFC1035_NAME */ },
   { "bootfile-url", 59, OT_NAME },
   { "bootfile-param", 60, OT_CSTRING },
   { NULL, 0, 0 }
diff --git a/src/dhcp6-protocol.h b/src/dhcp6-protocol.h
index a893315..48b027b 100644
--- a/src/dhcp6-protocol.h
+++ b/src/dhcp6-protocol.h
@@ -59,8 +59,12 @@
 #define OPTION6_REMOTE_ID       37
 #define OPTION6_SUBSCRIBER_ID   38
 #define OPTION6_FQDN            39
+#define OPTION6_NTP_SERVER      56
 #define OPTION6_CLIENT_MAC      79
 
+#define NTP_SUBOPTION_SRV_ADDR  1
+#define NTP_SUBOPTION_MC_ADDR   2
+#define NTP_SUBOPTION_SRV_FQDN  3
 
 #define DHCP6SUCCESS     0
 #define DHCP6UNSPEC      1
diff --git a/src/option.c b/src/option.c
index f8ba616..3052a4d 100644
--- a/src/option.c
+++ b/src/option.c
@@ -1260,6 +1260,12 @@ static int parse_dhcp_opt(char *errstr, char *arg, int flags)
 
       if (!found_colon)
 	is_addr6 = 0;
+
+#ifdef HAVE_DHCP6
+      /* NTP server option takes hex, addresses or FQDN */
+      if (is6 && new->opt == OPTION6_NTP_SERVER && !is_hex)
+	opt_len |= is_addr6 ? OT_ADDR_LIST : OT_RFC1035_NAME;
+#endif
      
       /* We know that some options take addresses */
       if (opt_len & OT_ADDR_LIST)
@@ -1521,8 +1527,9 @@ static int parse_dhcp_opt(char *errstr, char *arg, int flags)
 	    }
 	  else if (comma && (opt_len & OT_RFC1035_NAME))
 	    {
-	      unsigned char *p = NULL, *newp, *end;
+	      unsigned char *p = NULL, *q, *newp, *end;
 	      int len = 0;
+	      int header_size = (is6 && new->opt == OPTION6_NTP_SERVER) ? 4 : 0;
 	      arg = comma;
 	      comma = split(arg);
 	      
@@ -1532,7 +1539,7 @@ static int parse_dhcp_opt(char *errstr, char *arg, int flags)
 		  if (!dom)
 		    goto_err(_("bad domain in dhcp-option"));
 		    		  
-		  newp = opt_malloc(len + strlen(dom) + 2);
+		  newp = opt_malloc(len + header_size + strlen(dom) + 2);
 		  
 		  if (p)
 		    {
@@ -1541,8 +1548,14 @@ static int parse_dhcp_opt(char *errstr, char *arg, int flags)
 		    }
 		  
 		  p = newp;
-		  end = do_rfc1035_name(p + len, dom, NULL);
+		  q = p + len;
+		  end = do_rfc1035_name(q + header_size, dom, NULL);
 		  *end++ = 0;
+		  if (is6 && new->opt == OPTION6_NTP_SERVER)
+		    {
+		      PUTSHORT(NTP_SUBOPTION_SRV_FQDN, q);
+		      PUTSHORT(end - q - 2, q);
+		    }
 		  len = end - p;
 		  free(dom);
 
diff --git a/src/rfc3315.c b/src/rfc3315.c
index 43ed4f8..57f3f8b 100644
--- a/src/rfc3315.c
+++ b/src/rfc3315.c
@@ -1311,23 +1311,39 @@ static struct dhcp_netid *add_options(struct state *state, int do_refresh)
 	      	  
 	      for (a = (struct in6_addr *)opt_cfg->val, j = 0; j < opt_cfg->len; j+=IN6ADDRSZ, a++)
 		{
+		  struct in6_addr *p = NULL;
+
 		  if (IN6_IS_ADDR_UNSPECIFIED(a))
 		    {
 		      if (!add_local_addrs(state->context))
-			put_opt6(state->fallback, IN6ADDRSZ);
+			p = state->fallback;
 		    }
 		  else if (IN6_IS_ADDR_ULA_ZERO(a))
 		    {
 		      if (!IN6_IS_ADDR_UNSPECIFIED(state->ula_addr))
-			put_opt6(state->ula_addr, IN6ADDRSZ);
+			p = state->ula_addr;
 		    }
 		  else if (IN6_IS_ADDR_LINK_LOCAL_ZERO(a))
 		    {
 		      if (!IN6_IS_ADDR_UNSPECIFIED(state->ll_addr))
-			put_opt6(state->ll_addr, IN6ADDRSZ);
+			p = state->ll_addr;
 		    }
 		  else
-		    put_opt6(a, IN6ADDRSZ);
+		    p = a;
+
+		  if (!p)
+		    continue;
+		  else if (opt_cfg->opt == OPTION6_NTP_SERVER)
+		    {
+		      if (IN6_IS_ADDR_MULTICAST(p))
+			o1 = new_opt6(NTP_SUBOPTION_MC_ADDR);
+		      else
+			o1 = new_opt6(NTP_SUBOPTION_SRV_ADDR);
+		      put_opt6(p, IN6ADDRSZ);
+		      end_opt6(o1);
+		    }
+		  else
+		    put_opt6(p, IN6ADDRSZ);
 		}
 
 	      end_opt6(o);