diff --git a/lib/bcoin/fullnode.js b/lib/bcoin/fullnode.js
index 24cfe658..cfbd9d60 100644
--- a/lib/bcoin/fullnode.js
+++ b/lib/bcoin/fullnode.js
@@ -178,6 +178,18 @@ Fullnode.prototype._init = function _init() {
   this.http.open(load);
 };
 
+Fullnode.prototype.broadcast = function broadcast(item, callback) {
+  return this.pool.broadcast(item, callback);
+};
+
+Fullnode.prototype.sendTX = function sendTX(item, callback) {
+  return this.pool.sendTX(item, callback);
+};
+
+Fullnode.prototype.sendBlock = function sendBlock(item, callback) {
+  return this.pool.sendBlock(item, callback);
+};
+
 Fullnode.prototype.startSync = function startSync() {
   return this.pool.startSync();
 };
diff --git a/lib/bcoin/mempool.js b/lib/bcoin/mempool.js
index 7bb041cf..f291f6f5 100644
--- a/lib/bcoin/mempool.js
+++ b/lib/bcoin/mempool.js
@@ -50,6 +50,7 @@ function Mempool(node, options) {
   this.relayPriority = this.options.relayPriority !== false;
   this.requireStandard = this.options.requireStandard !== false;
   this.rejectInsaneFees = this.options.rejectInsaneFees !== false;
+  this.relay = this.options.relay || false;
 
   Mempool.global = this;
 
@@ -400,6 +401,9 @@ Mempool.prototype.addUnchecked = function addUnchecked(tx, peer, callback) {
 
     utils.debug('Added tx %s to the mempool.', tx.rhash);
 
+    if (self.options.relay)
+      self.node.broadcast(tx);
+
     self.resolveOrphans(tx, function(err, resolved) {
       if (err)
         return callback(err);
diff --git a/lib/bcoin/merkleblock.js b/lib/bcoin/merkleblock.js
index 40d9c852..d5ee5dd2 100644
--- a/lib/bcoin/merkleblock.js
+++ b/lib/bcoin/merkleblock.js
@@ -39,6 +39,14 @@ MerkleBlock.prototype.render = function render() {
   return this.getRaw();
 };
 
+MerkleBlock.prototype.renderNormal = function renderNormal() {
+  return this.getRaw();
+};
+
+MerkleBlock.prototype.renderWitness = function renderWitness() {
+  return this.getRaw();
+};
+
 MerkleBlock.prototype.getSize = function getSize() {
   if (this._size == null)
     this.getRaw();
diff --git a/lib/bcoin/peer.js b/lib/bcoin/peer.js
index 7b094bec..1bade9ee 100644
--- a/lib/bcoin/peer.js
+++ b/lib/bcoin/peer.js
@@ -212,7 +212,8 @@ Peer.prototype.createSocket = function createSocket(port, host) {
 
 Peer.prototype.broadcast = function broadcast(items) {
   var self = this;
-  var result;
+  var result = [];
+  var payload = [];
 
   if (this.destroyed)
     return;
@@ -220,21 +221,35 @@ Peer.prototype.broadcast = function broadcast(items) {
   if (!Array.isArray(items))
     items = [items];
 
-  result = items.map(function(item) {
+  items.forEach(function(item) {
     var key = item.hash('hex');
     var old = this._broadcast.map[key];
+    var type = item.type;
+    var entry, packetType;
+
     if (old) {
       clearTimeout(old.timer);
       clearInterval(old.interval);
     }
 
-    var inv = this.framer.inv([{
-      type: item.type,
-      hash: item.hash()
-    }]);
+    if (typeof type === 'string')
+      type = constants.inv[type];
+
+    // INV does not set the witness
+    // mask (only GETDATA does this).
+    type &= ~constants.invWitnessMask;
+
+    if (type === constants.inv.block)
+      packetType = 'block';
+    else if (type === constants.inv.tx)
+      packetType = 'tx';
+    else if (type === constants.inv.filtered)
+      packetType = 'merkleblock';
+    else
+      assert(false, 'Bad type.');
 
     // Auto-cleanup broadcast map after timeout
-    var entry = {
+    entry = {
       e: new EventEmitter(),
       timeout: setTimeout(function() {
         entry.e.emit('timeout');
@@ -244,24 +259,31 @@ Peer.prototype.broadcast = function broadcast(items) {
 
       // Retransmit
       interval: setInterval(function() {
-        self._write(inv);
+        self._write(entry.inv);
       }, this._broadcast.interval),
 
-      type: item.type,
-      value: item.render()
+      inv: this.framer.inv([{
+        type: type,
+        hash: item.hash()
+      }]),
+
+      packetType: packetType,
+      type: type,
+      hash: item.hash(),
+      msg: item
     };
 
     this._broadcast.map[key] = entry;
 
-    return entry.e;
+    result.push(entry.e);
+
+    payload.push({
+      type: entry.type,
+      hash: entry.hash
+    });
   }, this);
 
-  this._write(this.framer.inv(items.map(function(item) {
-    return {
-      type: item.type,
-      hash: item.hash()
-    };
-  })));
+  this._write(this.framer.inv(payload));
 
   return result;
 };
@@ -493,13 +515,41 @@ Peer.prototype._handleGetData = function handleGetData(items) {
   items.forEach(function(item) {
     // Filter out not broadcasted things
     var hash = utils.toHex(item.hash);
+    var entry = this._broadcast.map[hash];
+    var isWitness = item.type & constants.invWitnessMask;
+    var value;
 
-    if (!this._broadcast.map[hash])
+    if (!entry)
       return;
 
-    var entry = this._broadcast.map[hash];
+    if ((item.type & ~constants.invWitnessMask) !== entry.type) {
+      utils.debug(
+        'Peer %s requested an existing item with the wrong type.',
+        this.host);
+      return;
+    }
 
-    this._write(this.framer.packet(entry.type, entry.value));
+    if (isWitness) {
+      if (!entry.witnessValue)
+        entry.witnessValue = entry.msg.renderWitness();
+      value = entry.witnessValue;
+    } else {
+      if (!entry.value)
+        entry.value = entry.msg.renderNormal();
+      value = entry.value;
+    }
+
+    utils.debug(
+      'Peer %s requested %s:%s as a %s packet.',
+      this.host,
+      entry.packetType,
+      utils.revHex(utils.toHex(entry.hash)),
+      isWitness ? 'witness' : 'normal');
+
+    if (entry.value && entry.witnessValue)
+      delete entry.msg;
+
+    this._write(this.framer.packet(entry.packetType, value));
 
     entry.e.emit('request');
   }, this);
diff --git a/lib/bcoin/protocol/parser.js b/lib/bcoin/protocol/parser.js
index d0b6e880..eadf26b7 100644
--- a/lib/bcoin/protocol/parser.js
+++ b/lib/bcoin/protocol/parser.js
@@ -231,7 +231,6 @@ Parser.parseInvList = function parseInvList(p) {
 
   for (i = 0; i < count; i++) {
     items.push({
-      // type: constants.invByVal[p.readU32()],
       type: p.readU32(),
       hash: p.readHash()
     });
@@ -250,8 +249,8 @@ Parser.parseMerkleBlock = function parseMerkleBlock(p) {
   p.start();
 
   version = p.read32();
-  prevBlock = p.readHash('hex');
-  merkleRoot = p.readHash('hex');
+  prevBlock = p.readHash();
+  merkleRoot = p.readHash();
   ts = p.readU32();
   bits = p.readU32();
   nonce = p.readU32();
@@ -262,7 +261,7 @@ Parser.parseMerkleBlock = function parseMerkleBlock(p) {
   hashes = new Array(hashCount);
 
   for (i = 0; i < hashCount; i++)
-    hashes[i] = p.readHash('hex');
+    hashes[i] = p.readHash();
 
   flags = p.readVarBytes();
 
@@ -292,8 +291,8 @@ Parser.parseHeaders = function parseHeaders(p) {
   for (i = 0; i < count; i++) {
     headers.push({
       version: p.read32(),
-      prevBlock: p.readHash('hex'),
-      merkleRoot: p.readHash('hex'),
+      prevBlock: p.readHash(),
+      merkleRoot: p.readHash(),
       ts: p.readU32(),
       bits: p.readU32(),
       nonce: p.readU32(),
@@ -316,8 +315,8 @@ Parser.parseBlock = function parseBlock(p) {
   p.start();
 
   version = p.read32();
-  prevBlock = p.readHash('hex');
-  merkleRoot = p.readHash('hex');
+  prevBlock = p.readHash();
+  merkleRoot = p.readHash();
   ts = p.readU32();
   bits = p.readU32();
   nonce = p.readU32();
@@ -351,8 +350,8 @@ Parser.parseBlockCompact = function parseBlockCompact(p) {
   p.start();
 
   version = p.read32();
-  prevBlock = p.readHash('hex');
-  merkleRoot = p.readHash('hex');
+  prevBlock = p.readHash();
+  merkleRoot = p.readHash();
   ts = p.readU32();
   bits = p.readU32();
   nonce = p.readU32();
@@ -403,7 +402,7 @@ Parser.parseInput = function parseInput(p) {
   p = new BufferReader(p);
   p.start();
 
-  hash = p.readHash('hex');
+  hash = p.readHash();
   index = p.readU32();
   script = Parser.parseScript(p);
   sequence = p.readU32();
@@ -472,7 +471,7 @@ Parser.parseCoin = function parseCoin(p, extended) {
   coinbase = p.readU8() === 1;
 
   if (extended) {
-    hash = p.readHash('hex');
+    hash = p.readHash();
     index = p.readU32();
   }
 
@@ -655,7 +654,7 @@ Parser.parseReject = function parseReject(p) {
   reason = p.readVarString('ascii');
 
   try {
-    data = p.readHash('hex');
+    data = p.readHash();
   } catch (e) {
     data = null;
   }