Fix IPv6 DNS server adddress selection

[project/odhcpd.git] / src / dhcpv6-ia.c

diff --git a/src/dhcpv6-ia.c b/src/dhcpv6-ia.c
index b235f22..b21b39e 100644 (file)
--- a/src/dhcpv6-ia.c
+++ b/src/dhcpv6-ia.c
@@ -810,6 +810,9 @@ static size_t append_reply(uint8_t *buf, size_t buflen, uint16_t status,
                                        n.addr.s6_addr32[3] = htonl(a->assigned);
                                        size_t entrlen = sizeof(n) - 4;
 
+                                       if (!a->accept_reconf && iface->managed < RELAYD_MANAGED_NO_AFLAG)
+                                               n.preferred = htonl(1);
+
 #ifdef DHCPV6_OPT_PREFIX_CLASS
                                        if (iface->ia_addr[i].has_class) {
                                                entrlen += sizeof(pclass);