diff --git a/mobile/src/main/scala/com/github/shadowsocks/BaseService.scala b/mobile/src/main/scala/com/github/shadowsocks/BaseService.scala
index 2a40349b..e84e7a6a 100644
--- a/mobile/src/main/scala/com/github/shadowsocks/BaseService.scala
+++ b/mobile/src/main/scala/com/github/shadowsocks/BaseService.scala
@@ -25,6 +25,8 @@ import java.net.InetAddress
 import java.util
 import java.util.concurrent.TimeUnit
 import java.util.{Timer, TimerTask}
+import java.net.InetAddress
+import java.net.Inet6Address
 
 import android.app.Service
 import android.content.{BroadcastReceiver, Context, Intent, IntentFilter}
@@ -330,6 +332,13 @@ trait BaseService extends Service {
     file
   }
 
+  private final def buildRemoteDns(remoteDns: String): String = {
+    val addr = InetAddress.getByName(remoteDns)
+    if (addr.isInstanceOf[Inet6Address])
+      return "[" + remoteDns + "]"
+    remoteDns
+  }
+
   protected final def buildOvertureConfig(file: String): String = {
     val config = new JSONObject()
       .put("BindAddress", ":" + (profile.localPort + 53))
@@ -356,14 +365,17 @@ trait BaseService extends Service {
           makeDns("Primary-1", "119.29.29.29", edns = false),
           makeDns("Primary-2", "114.114.114.114", edns = false)
         )))
-        .put("AlternativeDNS", new JSONArray().put(makeDns("Alternative", profile.remoteDns)))
+        .put("AlternativeDNS", new JSONArray().put(makeDns("Alternative",
+          buildRemoteDns(profile.remoteDns.trim))))
         .put("IPNetworkFile", "china_ip_list.txt")
         .put("DomainFile", "gfwlist.txt")
       case Acl.CHINALIST => config
         .put("PrimaryDNS", new JSONArray().put(makeDns("Primary", "119.29.29.29")))
-        .put("AlternativeDNS", new JSONArray().put(makeDns("Alternative", profile.remoteDns)))
+        .put("AlternativeDNS", new JSONArray().put(makeDns("Alternative",
+          buildRemoteDns(profile.remoteDns.trim))))
       case _ => config
-        .put("PrimaryDNS", new JSONArray().put(makeDns("Primary", profile.remoteDns)))
+        .put("PrimaryDNS", new JSONArray().put(makeDns("Primary",
+          buildRemoteDns(profile.remoteDns.trim))))
         .put("AlternativeDNS", new JSONArray().put(makeDns("Alternative", "208.67.222.222")))
     }
     IOUtils.writeString(new File(getFilesDir, file), config.toString)
diff --git a/mobile/src/main/scala/com/github/shadowsocks/ShadowsocksVpnService.scala b/mobile/src/main/scala/com/github/shadowsocks/ShadowsocksVpnService.scala
index 1963fadd..8812c447 100644
--- a/mobile/src/main/scala/com/github/shadowsocks/ShadowsocksVpnService.scala
+++ b/mobile/src/main/scala/com/github/shadowsocks/ShadowsocksVpnService.scala
@@ -22,6 +22,8 @@ package com.github.shadowsocks
 
 import java.io.File
 import java.util.Locale
+import java.net.InetAddress
+import java.net.Inet6Address
 
 import android.content._
 import android.content.pm.PackageManager.NameNotFoundException
@@ -189,7 +191,7 @@ class ShadowsocksVpnService extends VpnService with BaseService {
       .setMtu(VPN_MTU)
       .addAddress(PRIVATE_VLAN.formatLocal(Locale.ENGLISH, "1"), 24)
 
-    builder.addDnsServer(profile.remoteDns.trim)
+    builder.addDnsServer("8.8.8.8") // It's fake DNS for tun2socks, not the real remote DNS
 
     if (profile.ipv6) {
       builder.addAddress(PRIVATE_VLAN6.formatLocal(Locale.ENGLISH, "1"), 126)
@@ -221,7 +223,11 @@ class ShadowsocksVpnService extends VpnService with BaseService {
         val subnet = Subnet.fromString(cidr)
         builder.addRoute(subnet.address.getHostAddress, subnet.prefixSize)
       })
-      builder.addRoute(profile.remoteDns.trim, 32)
+      val addr = InetAddress.getByName(profile.remoteDns.trim)
+      if (addr.isInstanceOf[Inet6Address])
+        builder.addRoute(addr, 128)
+      else if (addr.isInstanceOf[InetAddress])
+        builder.addRoute(addr, 32)
     }
 
     conn = builder.establish()