diff --git a/utils/misc/src/main/java/org/onlab/packet/DHCP.java b/utils/misc/src/main/java/org/onlab/packet/DHCP.java
new file mode 100644
index 0000000..9ace649
--- /dev/null
+++ b/utils/misc/src/main/java/org/onlab/packet/DHCP.java
@@ -0,0 +1,543 @@
+/*******************************************************************************
+ * Copyright 2014 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+/**
+ * Copyright 2011, Big Switch Networks, Inc.
+ * Originally created by David Erickson, Stanford University
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License. You may obtain
+ * a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ **/
+
+package org.onlab.packet;
+
+import java.io.UnsupportedEncodingException;
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.ListIterator;
+
+/**
+ *
+ * @author David Erickson (daviderickson@cs.stanford.edu)
+ */
+public class DHCP extends BasePacket {
+    /**
+     * Dynamic Host Configuration Protocol packet.
+     * ------------------------------------------ |op (1) | htype(1) | hlen(1) |
+     * hops(1) | ------------------------------------------ | xid (4) |
+     * ------------------------------------------ | secs (2) | flags (2) |
+     * ------------------------------------------ | ciaddr (4) |
+     * ------------------------------------------ | yiaddr (4) |
+     * ------------------------------------------ | siaddr (4) |
+     * ------------------------------------------ | giaddr (4) |
+     * ------------------------------------------ | chaddr (16) |
+     * ------------------------------------------ | sname (64) |
+     * ------------------------------------------ | file (128) |
+     * ------------------------------------------ | options (312) |
+     * ------------------------------------------
+     *
+     */
+    // Header + magic without options
+    public static final int MIN_HEADER_LENGTH = 240;
+    public static final byte OPCODE_REQUEST = 0x1;
+    public static final byte OPCODE_REPLY = 0x2;
+
+    public static final byte HWTYPE_ETHERNET = 0x1;
+
+    public enum DHCPOptionCode {
+        OptionCode_SubnetMask((byte) 1), OptionCode_RequestedIP((byte) 50), OptionCode_LeaseTime(
+                (byte) 51), OptionCode_MessageType((byte) 53), OptionCode_DHCPServerIp(
+                        (byte) 54), OptionCode_RequestedParameters((byte) 55), OptionCode_RenewalTime(
+                                (byte) 58), OPtionCode_RebindingTime((byte) 59), OptionCode_ClientID(
+                                        (byte) 61), OptionCode_END((byte) 255);
+
+        protected byte value;
+
+        private DHCPOptionCode(final byte value) {
+            this.value = value;
+        }
+
+        public byte getValue() {
+            return this.value;
+        }
+    }
+
+    protected byte opCode;
+    protected byte hardwareType;
+    protected byte hardwareAddressLength;
+    protected byte hops;
+    protected int transactionId;
+    protected short seconds;
+    protected short flags;
+    protected int clientIPAddress;
+    protected int yourIPAddress;
+    protected int serverIPAddress;
+    protected int gatewayIPAddress;
+    protected byte[] clientHardwareAddress;
+    protected String serverName;
+    protected String bootFileName;
+    protected List<DHCPOption> options = new ArrayList<DHCPOption>();
+
+    /**
+     * @return the opCode
+     */
+    public byte getOpCode() {
+        return this.opCode;
+    }
+
+    /**
+     * @param opCode
+     *            the opCode to set
+     */
+    public DHCP setOpCode(final byte opCode) {
+        this.opCode = opCode;
+        return this;
+    }
+
+    /**
+     * @return the hardwareType
+     */
+    public byte getHardwareType() {
+        return this.hardwareType;
+    }
+
+    /**
+     * @param hardwareType
+     *            the hardwareType to set
+     */
+    public DHCP setHardwareType(final byte hardwareType) {
+        this.hardwareType = hardwareType;
+        return this;
+    }
+
+    /**
+     * @return the hardwareAddressLength
+     */
+    public byte getHardwareAddressLength() {
+        return this.hardwareAddressLength;
+    }
+
+    /**
+     * @param hardwareAddressLength
+     *            the hardwareAddressLength to set
+     */
+    public DHCP setHardwareAddressLength(final byte hardwareAddressLength) {
+        this.hardwareAddressLength = hardwareAddressLength;
+        return this;
+    }
+
+    /**
+     * @return the hops
+     */
+    public byte getHops() {
+        return this.hops;
+    }
+
+    /**
+     * @param hops
+     *            the hops to set
+     */
+    public DHCP setHops(final byte hops) {
+        this.hops = hops;
+        return this;
+    }
+
+    /**
+     * @return the transactionId
+     */
+    public int getTransactionId() {
+        return this.transactionId;
+    }
+
+    /**
+     * @param transactionId
+     *            the transactionId to set
+     */
+    public DHCP setTransactionId(final int transactionId) {
+        this.transactionId = transactionId;
+        return this;
+    }
+
+    /**
+     * @return the seconds
+     */
+    public short getSeconds() {
+        return this.seconds;
+    }
+
+    /**
+     * @param seconds
+     *            the seconds to set
+     */
+    public DHCP setSeconds(final short seconds) {
+        this.seconds = seconds;
+        return this;
+    }
+
+    /**
+     * @return the flags
+     */
+    public short getFlags() {
+        return this.flags;
+    }
+
+    /**
+     * @param flags
+     *            the flags to set
+     */
+    public DHCP setFlags(final short flags) {
+        this.flags = flags;
+        return this;
+    }
+
+    /**
+     * @return the clientIPAddress
+     */
+    public int getClientIPAddress() {
+        return this.clientIPAddress;
+    }
+
+    /**
+     * @param clientIPAddress
+     *            the clientIPAddress to set
+     */
+    public DHCP setClientIPAddress(final int clientIPAddress) {
+        this.clientIPAddress = clientIPAddress;
+        return this;
+    }
+
+    /**
+     * @return the yourIPAddress
+     */
+    public int getYourIPAddress() {
+        return this.yourIPAddress;
+    }
+
+    /**
+     * @param yourIPAddress
+     *            the yourIPAddress to set
+     */
+    public DHCP setYourIPAddress(final int yourIPAddress) {
+        this.yourIPAddress = yourIPAddress;
+        return this;
+    }
+
+    /**
+     * @return the serverIPAddress
+     */
+    public int getServerIPAddress() {
+        return this.serverIPAddress;
+    }
+
+    /**
+     * @param serverIPAddress
+     *            the serverIPAddress to set
+     */
+    public DHCP setServerIPAddress(final int serverIPAddress) {
+        this.serverIPAddress = serverIPAddress;
+        return this;
+    }
+
+    /**
+     * @return the gatewayIPAddress
+     */
+    public int getGatewayIPAddress() {
+        return this.gatewayIPAddress;
+    }
+
+    /**
+     * @param gatewayIPAddress
+     *            the gatewayIPAddress to set
+     */
+    public DHCP setGatewayIPAddress(final int gatewayIPAddress) {
+        this.gatewayIPAddress = gatewayIPAddress;
+        return this;
+    }
+
+    /**
+     * @return the clientHardwareAddress
+     */
+    public byte[] getClientHardwareAddress() {
+        return this.clientHardwareAddress;
+    }
+
+    /**
+     * @param clientHardwareAddress
+     *            the clientHardwareAddress to set
+     */
+    public DHCP setClientHardwareAddress(final byte[] clientHardwareAddress) {
+        this.clientHardwareAddress = clientHardwareAddress;
+        return this;
+    }
+
+    /**
+     * Gets a specific DHCP option parameter.
+     *
+     * @param opetionCode
+     *            The option code to get
+     * @return The value of the option if it exists, null otherwise
+     */
+    public DHCPOption getOption(final DHCPOptionCode optionCode) {
+        for (final DHCPOption opt : this.options) {
+            if (opt.code == optionCode.value) {
+                return opt;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * @return the options
+     */
+    public List<DHCPOption> getOptions() {
+        return this.options;
+    }
+
+    /**
+     * @param options
+     *            the options to set
+     */
+    public DHCP setOptions(final List<DHCPOption> options) {
+        this.options = options;
+        return this;
+    }
+
+    /**
+     * @return the packetType base on option 53
+     */
+    public DHCPPacketType getPacketType() {
+        final ListIterator<DHCPOption> lit = this.options.listIterator();
+        while (lit.hasNext()) {
+            final DHCPOption option = lit.next();
+            // only care option 53
+            if (option.getCode() == 53) {
+                return DHCPPacketType.getType(option.getData()[0]);
+            }
+        }
+        return null;
+    }
+
+    /**
+     * @return the serverName
+     */
+    public String getServerName() {
+        return this.serverName;
+    }
+
+    /**
+     * @param server
+     *            the serverName to set
+     */
+    public DHCP setServerName(final String server) {
+        this.serverName = server;
+        return this;
+    }
+
+    /**
+     * @return the bootFileName
+     */
+    public String getBootFileName() {
+        return this.bootFileName;
+    }
+
+    /**
+     * @param bootFile
+     *            the bootFileName to set
+     */
+    public DHCP setBootFileName(final String bootFile) {
+        this.bootFileName = bootFile;
+        return this;
+    }
+
+    @Override
+    public byte[] serialize() {
+        // not guaranteed to retain length/exact format
+        this.resetChecksum();
+
+        // minimum size 240 including magic cookie, options generally padded to
+        // 300
+        int optionsLength = 0;
+        for (final DHCPOption option : this.options) {
+            if (option.getCode() == 0 || option.getCode() == 255) {
+                optionsLength += 1;
+            } else {
+                optionsLength += 2 + (0xff & option.getLength());
+            }
+        }
+        int optionsPadLength = 0;
+        if (optionsLength < 60) {
+            optionsPadLength = 60 - optionsLength;
+        }
+
+        final byte[] data = new byte[240 + optionsLength + optionsPadLength];
+        final ByteBuffer bb = ByteBuffer.wrap(data);
+        bb.put(this.opCode);
+        bb.put(this.hardwareType);
+        bb.put(this.hardwareAddressLength);
+        bb.put(this.hops);
+        bb.putInt(this.transactionId);
+        bb.putShort(this.seconds);
+        bb.putShort(this.flags);
+        bb.putInt(this.clientIPAddress);
+        bb.putInt(this.yourIPAddress);
+        bb.putInt(this.serverIPAddress);
+        bb.putInt(this.gatewayIPAddress);
+        bb.put(this.clientHardwareAddress);
+        if (this.clientHardwareAddress.length < 16) {
+            for (int i = 0; i < 16 - this.clientHardwareAddress.length; ++i) {
+                bb.put((byte) 0x0);
+            }
+        }
+        this.writeString(this.serverName, bb, 64);
+        this.writeString(this.bootFileName, bb, 128);
+        // magic cookie
+        bb.put((byte) 0x63);
+        bb.put((byte) 0x82);
+        bb.put((byte) 0x53);
+        bb.put((byte) 0x63);
+        for (final DHCPOption option : this.options) {
+            final int code = option.getCode() & 0xff;
+            bb.put((byte) code);
+            if (code != 0 && code != 255) {
+                bb.put(option.getLength());
+                bb.put(option.getData());
+            }
+        }
+        // assume the rest is padded out with zeroes
+        return data;
+    }
+
+    protected void writeString(final String string, final ByteBuffer bb,
+            final int maxLength) {
+        if (string == null) {
+            for (int i = 0; i < maxLength; ++i) {
+                bb.put((byte) 0x0);
+            }
+        } else {
+            byte[] bytes = null;
+            try {
+                bytes = string.getBytes("ascii");
+            } catch (final UnsupportedEncodingException e) {
+                throw new RuntimeException("Failure encoding server name", e);
+            }
+            int writeLength = bytes.length;
+            if (writeLength > maxLength) {
+                writeLength = maxLength;
+            }
+            bb.put(bytes, 0, writeLength);
+            for (int i = writeLength; i < maxLength; ++i) {
+                bb.put((byte) 0x0);
+            }
+        }
+    }
+
+    @Override
+    public IPacket deserialize(final byte[] data, final int offset,
+            final int length) {
+        final ByteBuffer bb = ByteBuffer.wrap(data, offset, length);
+        if (bb.remaining() < DHCP.MIN_HEADER_LENGTH) {
+            return this;
+        }
+
+        this.opCode = bb.get();
+        this.hardwareType = bb.get();
+        this.hardwareAddressLength = bb.get();
+        this.hops = bb.get();
+        this.transactionId = bb.getInt();
+        this.seconds = bb.getShort();
+        this.flags = bb.getShort();
+        this.clientIPAddress = bb.getInt();
+        this.yourIPAddress = bb.getInt();
+        this.serverIPAddress = bb.getInt();
+        this.gatewayIPAddress = bb.getInt();
+        final int hardwareAddressLength = 0xff & this.hardwareAddressLength;
+        this.clientHardwareAddress = new byte[hardwareAddressLength];
+
+        bb.get(this.clientHardwareAddress);
+        for (int i = hardwareAddressLength; i < 16; ++i) {
+            bb.get();
+        }
+        this.serverName = this.readString(bb, 64);
+        this.bootFileName = this.readString(bb, 128);
+        // read the magic cookie
+        // magic cookie
+        bb.get();
+        bb.get();
+        bb.get();
+        bb.get();
+        // read options
+        while (bb.hasRemaining()) {
+            final DHCPOption option = new DHCPOption();
+            int code = 0xff & bb.get(); // convert signed byte to int in range
+            // [0,255]
+            option.setCode((byte) code);
+            if (code == 0) {
+                // skip these
+                continue;
+            } else if (code != 255) {
+                if (bb.hasRemaining()) {
+                    final int l = 0xff & bb.get(); // convert signed byte to
+                    // int in range [0,255]
+                    option.setLength((byte) l);
+                    if (bb.remaining() >= l) {
+                        final byte[] optionData = new byte[l];
+                        bb.get(optionData);
+                        option.setData(optionData);
+                    } else {
+                        // Skip the invalid option and set the END option
+                        code = 0xff;
+                        option.setCode((byte) code);
+                        option.setLength((byte) 0);
+                    }
+                } else {
+                    // Skip the invalid option and set the END option
+                    code = 0xff;
+                    option.setCode((byte) code);
+                    option.setLength((byte) 0);
+                }
+            }
+            this.options.add(option);
+            if (code == 255) {
+                // remaining bytes are supposed to be 0, but ignore them just in
+                // case
+                break;
+            }
+        }
+
+        return this;
+    }
+
+    protected String readString(final ByteBuffer bb, final int maxLength) {
+        final byte[] bytes = new byte[maxLength];
+        bb.get(bytes);
+        String result = null;
+        try {
+            result = new String(bytes, "ascii").trim();
+        } catch (final UnsupportedEncodingException e) {
+            throw new RuntimeException("Failure decoding string", e);
+        }
+        return result;
+    }
+}