diff --git a/etc/smartdns/smartdns.conf b/etc/smartdns/smartdns.conf
index 3b6547a..6120225 100644
--- a/etc/smartdns/smartdns.conf
+++ b/etc/smartdns/smartdns.conf
@@ -96,7 +96,7 @@ cache-size 4096
 # edns client subnet
 # edns-client-subnet [ip/subnet]
 # edns-client-subnet 192.168.1.1/24
-# edns-client-subnet [8::8]/56
+# edns-client-subnet 8::8/56
 
 # ttl for all resource record
 # rr-ttl: ttl for all record
diff --git a/src/dns_server.c b/src/dns_server.c
index 0474d94..019ac52 100644
--- a/src/dns_server.c
+++ b/src/dns_server.c
@@ -544,7 +544,7 @@ static int _dns_rrs_add_all_best_ip(struct dns_server_post_context *context)
 		added_ipv6_addr = _dns_ip_address_get(request, request->ipv6_addr, DNS_T_AAAA);
 	}
 
-	while (true) {
+	while (true && context->ip_num < 10) {
 		pthread_mutex_lock(&request->ip_map_lock);
 		hash_for_each_safe(request->ip_map, bucket, tmp, addr_map, node)
 		{