1) Flash the NetGear device with the appropriate image:

   openwrt-ar71xx-wndr3700v2-jffs2-factory.img -> WNDR3700v2
   openwrt-ar71xx-wndr3800-jffs2-factory.img   -> WNDR3800

Configure a computer's ethernet port to: 192.168.1.2/24 (.1 is used by
the router) and execute the following procedure:

  http://wiki.openwrt.org/toh/netgear/wndr3800#recovery.flash.in.failsafe.mode

2) Execute the "First Login" procedure described in:

  http://wiki.openwrt.org/doc/howto/firstlogin

This will enable SSH for subsequent logins.

3) Login via SSH and perform the following procedure:

# From the OpenWRT repo:

# Note: some of the packages might already be installed

opkg update
opkg install bash
opkg install dnsmasq
opkg install firewall
opkg install ip
opkg install iptables
opkg install iptables-mod-conntrack
opkg install iptables-mod-nat
opkg install kmod-ip6-tunnel
opkg install kmod-ipt-conntrack
opkg install kmod-ipt-core
opkg install kmod-ipt-nat
opkg install kmod-ipt-nathelper
opkg install kmod-iptunnel6
opkg install kmod-ipv6
opkg install libpcap

# From the ISC repo:

# dhcp4-client

opkg install http://ftp.isc.org/isc/lwds-lite/sdcpe/packages/ar71xx/packages/dhcp4-client_4.2.0-sdcpe-2-1_ar71xx.ipk

# dhcp4-dhccra

opkg install http://ftp.isc.org/isc/lwds-lite/sdcpe/packages/ar71xx/packages/dhcp4-dhccra_4.2.0-sdcpe-2-1_ar71xx.ipk

# dhcp4-server

opkg install http://ftp.isc.org/isc/lwds-lite/sdcpe/packages/ar71xx/packages/dhcp4-server_4.2.0-sdcpe-2-1_ar71xx.ipk

# sdctld

opkg install http://ftp.isc.org/isc/lwds-lite/sdcpe/packages/ar71xx/packages/sdctld_rt28354-1_ar71xx.ipk

4) Config and scripts

# Copy the file:
# http://ftp.isc.org/isc/lwds-lite/sdcpe/sdb4-sdcpe.tar.gz
# to the CPE and untar in /

cd /
tar zxvf /path/to/sdb4-sdcpe.tar.gz 

# This will create the /etc/sdb4 directory and will replace the 
# /etc/config/firewall file as well.

5) Remove udhcpc (legacy DHCPv4 client) and dnsmasq DHCP support

rm /sbin/udhcpc
mv /usr/sbin/dnsmasq /usr/sbin/dnsmasq-
opkg remove dnsmasq
mv /usr/sbin/dnsmasq- /usr/sbin/dnsmasq

6) Enable the SDB4 bundle by editing: /etc/rc.local and adding:

  /etc/sdb4/rc start

before the "exit 0" command

7) That's all... now look for the requests on the DHCP servers
   (DHCPv6, TSV) and add the appropriate DUIDs and MAC addresses so
   that the CPE can obtain addresses.