diff --git a/Shadowsocks.Interop/V2Ray/Config.cs b/Shadowsocks.Interop/V2Ray/Config.cs
index a6682104..2f23f5d7 100644
--- a/Shadowsocks.Interop/V2Ray/Config.cs
+++ b/Shadowsocks.Interop/V2Ray/Config.cs
@@ -1,5 +1,4 @@
 using System.Collections.Generic;
-using System.Text.Json.Serialization;
 
 namespace Shadowsocks.Interop.V2Ray
 {
diff --git a/Shadowsocks.Interop/V2Ray/Dns/ServerObject.cs b/Shadowsocks.Interop/V2Ray/Dns/ServerObject.cs
index c9a56681..d340e5b2 100644
--- a/Shadowsocks.Interop/V2Ray/Dns/ServerObject.cs
+++ b/Shadowsocks.Interop/V2Ray/Dns/ServerObject.cs
@@ -16,6 +16,12 @@ namespace Shadowsocks.Interop.V2Ray.Dns
         /// </summary>
         public int Port { get; set; }
 
+        /// <summary>
+        /// Gets or sets the client IP
+        /// to include in DNS queries.
+        /// </summary>
+        public string? ClientIp { get; set; }
+
         /// <summary>
         /// Gets or sets the list of domains
         /// that prefers this DNS server.
diff --git a/Shadowsocks.Interop/V2Ray/DnsObject.cs b/Shadowsocks.Interop/V2Ray/DnsObject.cs
index 23381319..1fc15c4f 100644
--- a/Shadowsocks.Interop/V2Ray/DnsObject.cs
+++ b/Shadowsocks.Interop/V2Ray/DnsObject.cs
@@ -23,6 +23,15 @@ namespace Shadowsocks.Interop.V2Ray
         /// </summary>
         public string? ClientIp { get; set; }
 
+        /// <summary>
+        /// Gets or sets whether to disable internal DNS cache.
+        /// Defaults to false, or DNS cache is enabled.
+        /// </summary>
+        public bool DisableCache { get; set; }
+
+        /// <summary>
+        /// Gets or sets the inbound tag for DNS traffic.
+        /// </summary>
         public string? Tag { get; set; }
 
         public DnsObject()
diff --git a/Shadowsocks.Interop/V2Ray/FakeDnsObject.cs b/Shadowsocks.Interop/V2Ray/FakeDnsObject.cs
new file mode 100644
index 00000000..40af739d
--- /dev/null
+++ b/Shadowsocks.Interop/V2Ray/FakeDnsObject.cs
@@ -0,0 +1,15 @@
+namespace Shadowsocks.Interop.V2Ray
+{
+    public class FakeDnsObject
+    {
+        /// <summary>
+        /// Gets or sets the IP pool CIDR.
+        /// </summary>
+        public string IpPool { get; set; } = "240.0.0.0/8";
+
+        /// <summary>
+        /// Gets or sets the IP pool size.
+        /// </summary>
+        public long PoolSize { get; set; } = 65535L;
+    }
+}
diff --git a/Shadowsocks.Interop/V2Ray/Inbound/SniffingObject.cs b/Shadowsocks.Interop/V2Ray/Inbound/SniffingObject.cs
index 23c41336..07d97bca 100644
--- a/Shadowsocks.Interop/V2Ray/Inbound/SniffingObject.cs
+++ b/Shadowsocks.Interop/V2Ray/Inbound/SniffingObject.cs
@@ -15,6 +15,14 @@ namespace Shadowsocks.Interop.V2Ray.Inbound
         /// </summary>
         public List<string> DestOverride { get; set; }
 
+        /// <summary>
+        /// Gets or sets whether the target address is sniffed
+        /// solely based on metadata.
+        /// Defaults to false.
+        /// Change to true to use FakeDNS.
+        /// </summary>
+        public bool MetadataOnly { get; set; }
+
         public SniffingObject()
         {
             Enabled = true;
@@ -24,5 +32,27 @@ namespace Shadowsocks.Interop.V2Ray.Inbound
                 "tls",
             };
         }
+
+        public static SniffingObject Default => new()
+        {
+            Enabled = false,
+            DestOverride = new()
+            {
+                "http",
+                "tls",
+            },
+        };
+
+        public static SniffingObject DefaultFakeDns => new()
+        {
+            Enabled = true,
+            DestOverride = new()
+            {
+                "http",
+                "tls",
+                "fakedns",
+            },
+            MetadataOnly = true,
+        };
     }
 }
diff --git a/Shadowsocks.Interop/V2Ray/InboundObject.cs b/Shadowsocks.Interop/V2Ray/InboundObject.cs
index 94ed120d..9a4afcb1 100644
--- a/Shadowsocks.Interop/V2Ray/InboundObject.cs
+++ b/Shadowsocks.Interop/V2Ray/InboundObject.cs
@@ -27,10 +27,7 @@ namespace Shadowsocks.Interop.V2Ray
             Port = 1080,
             Protocol = "socks",
             Settings = Protocols.Socks.InboundConfigurationObject.Default,
-            Sniffing = new()
-            {
-                Enabled = false,
-            },
+            Sniffing = SniffingObject.Default,
         };
 
         public static InboundObject DefaultLocalHttp => new()
@@ -39,10 +36,7 @@ namespace Shadowsocks.Interop.V2Ray
             Listen = "127.0.0.1",
             Port = 8080,
             Protocol = "http",
-            Sniffing = new()
-            {
-                Enabled = false,
-            },
+            Sniffing = SniffingObject.Default,
         };
     }
 }
diff --git a/Shadowsocks.Interop/V2Ray/Outbound/ProxySettingsObject.cs b/Shadowsocks.Interop/V2Ray/Outbound/ProxySettingsObject.cs
index 6b476d93..2baf2194 100644
--- a/Shadowsocks.Interop/V2Ray/Outbound/ProxySettingsObject.cs
+++ b/Shadowsocks.Interop/V2Ray/Outbound/ProxySettingsObject.cs
@@ -8,9 +8,23 @@ namespace Shadowsocks.Interop.V2Ray.Outbound
         /// </summary>
         public string Tag { get; set; }
 
+        /// <summary>
+        /// Gets or sets whether to keep the protocol
+        /// itself's transport layer intact.
+        /// Defaults to false, or only proxy internal TCP traffic.
+        /// Set to true to proxy the protocol.
+        /// The tag will act as a forward proxy.
+        /// </summary>
+        public bool TransportLayer { get; set; }
+
         public ProxySettingsObject()
         {
             Tag = "";
         }
+
+        public static ProxySettingsObject Default => new()
+        {
+            TransportLayer = true,
+        };
     }
 }
diff --git a/Shadowsocks.Interop/V2Ray/RoutingObject.cs b/Shadowsocks.Interop/V2Ray/RoutingObject.cs
index 97aaaea5..093c20e7 100644
--- a/Shadowsocks.Interop/V2Ray/RoutingObject.cs
+++ b/Shadowsocks.Interop/V2Ray/RoutingObject.cs
@@ -12,6 +12,13 @@ namespace Shadowsocks.Interop.V2Ray
         /// </summary>
         public string DomainStrategy { get; set; }
 
+        /// <summary>
+        /// Gets or sets the domain matcher used for routing.
+        /// Default value: "" (binary search).
+        /// Available values: "" | "hybrid"
+        /// </summary>
+        public string DomainMatcher { get; set; }
+
         /// <summary>
         /// Gets or sets the list of routing rules.
         /// </summary>
@@ -25,9 +32,16 @@ namespace Shadowsocks.Interop.V2Ray
         public RoutingObject()
         {
             DomainStrategy = "AsIs";
+            DomainMatcher = "";
             Rules = new();
         }
 
+        public static RoutingObject Default => new()
+        {
+            DomainStrategy = "IPOnDemand",
+            DomainMatcher = "hybrid",
+        };
+
         public static RoutingObject DefaultBalancers => new()
         {
             Balancers = new(),