From ad24ba5a11d0d501ffebdb478b85f9dc5f8aab37 Mon Sep 17 00:00:00 2001
From: Tvlz <Tvlz@Tvlz>
Date: Sun, 19 Jul 2015 14:03:00 -0400
Subject: [PATCH] IPv6: Send ia-na only when using DHCPv6-PD

---
 release/src-rt-6.x.4708/router/rc/dhcp.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/release/src-rt-6.x.4708/router/rc/dhcp.c b/release/src-rt-6.x.4708/router/rc/dhcp.c
index 62d427cc97..60781a10f2 100644
--- a/release/src-rt-6.x.4708/router/rc/dhcp.c
+++ b/release/src-rt-6.x.4708/router/rc/dhcp.c
@@ -500,8 +500,12 @@ void start_dhcp6c(void)
 	unlink("/var/dhcp6c_duid");
 	if ((f = fopen("/etc/dhcp6c.conf", "w"))) {
 		fprintf(f,
-			"interface %s {\n"
-			" send ia-na 0;\n" //Required to get correct WAN IP
+			"interface %s {\n", wan6face);
+		if (nvram_match("ipv6_service", "native-pd")) {
+		fprintf(f,
+			" send ia-na 0;\n");
+		};
+		fprintf(f,
 			" send ia-pd 0;\n"
 			" send rapid-commit;\n"
 			" request domain-name-servers;\n"
@@ -513,7 +517,6 @@ void start_dhcp6c(void)
 			"  sla-id 0;\n"
 			"  sla-len %d;\n"
 			" 	};\n",
-			wan6face,
 			nvram_get_int("ipv6_prefix_length"),
 			nvram_safe_get("lan_ifname"),
 			prefix_len);
-- 
2.11.4.GIT