The MississippiNetworkRepeater is a NetgearWgt634u loaded with OpenWRT.  It uses a HawkingHwu54g USB 802.11g radio as a client to any nearby www.personaltelco.net network and operates its native radio as a local coverage access point.  

== Building ==

To build one of the devices:

 * load OpenWrt Kamikaze (here r6693) in a normal fashion, via serial console:
   {{{
CFE> ifconfig eth0 -auto
CFE> flash -noheader 192.168.0.5:wgt634u/wipe-1.img flash0.os
CFE> flash -noheader -offset=3932160 192.168.0.5:wgt634u/wipe-2.img flash0.os
CFE> flash -noheader 192.168.0.5:wgt634u/openwrt-wgt634u-2.6-jffs2-r6693.bin flash0.os
CFE> reboot
}}}

 * log into the AP via serial console

 * set root password:
   {{{
passwd                                                          
}}}

 * configure /etc/ipkg.conf to point at a compatible package archive:
   {{{
src snapshots http://www.personaltelco.net/~russell/openwrt/r6693
dest root /
dest ram /tmp
}}}

 * install zd1211 packages:
   {{{
ipkg install kmod-usb2
ipkg install kmod-zd1211
}}}

 * install iproute2 tools because I like them:
   {{{
ipkg install ip
}}}

 * configure /etc/config/wireless:
   {{{
config wifi-device  wifi0
        option type     atheros
        option channel  11

config wifi-iface
        option device   wifi0
#       option network  lan
        option mode     ap
        option ssid     www.personaltelco.net/repeater
        option hidden   0
        option encryption none
}}}

 * disable firewall script:
   {{{
rm /etc/rc.d/S45firewall
}}}

 * modify the lan stanza in /etc/config/network:
   {{{
#### LAN configuration
config interface lan
        option type     bridge
        option ifname   "eth0.0 ath0"
        option proto    static
        option ipaddr   192.168.3.1
        option netmask  255.255.255.0
}}}

 * add a file /etc/init.d/repeater:
    {{{
cat > /etc/init.d/repeater <<EOF
#!/bin/sh

echo "Initializing Repeater"

/sbin/ifconfig wlan0 up
/usr/sbin/iwconfig wlan0 essid www.personaltelco.net
while /usr/sbin/iwconfig wlan0 2>/dev/null | grep Access | awk '{ print $5 }' | grep 00:00:00:00:00:00 ; do sleep 1 ; done
/sbin/udhcpc -i wlan0
/usr/sbin/iptables -t nat -A POSTROUTING -o wlan0 -j MASQUERADE
EOF
chmod 755 /etc/init.d/repeater
}}}

 * create a link in /etc/rc.d:
   {{{
cd /etc/rc.d
ln -s /etc/init.d/repeater S90repeater
}}}

 * turn of wan stanza's dhcp in /etc/config/network:
   {{{
#### WAN configuration
config interface        wan
        option ifname   "eth0.1"
        option proto    none
}}}

 * install snmpd:
   {{{
ipkg install snmpd
}}}

 * configure /etc/snmp/snmpd.conf:
   {{{
syslocation "<Location> MissNet-?? (repeater)" 
syscontact "ops@personaltelco.net"

rocommunity public

exec assoc_count /usr/local/bin/assoc_count
}}}

 * setup the /usr/local/bin/assoc_count script:
   {{{
mkdir -p /usr/local/bin
cat > /usr/local/bin/assoc_count <<EOF
#!/bin/sh

echo $(($(wc -l < /proc/net/madwifi/ath0/associated_sta)/3))
EOF
chmod 755 /usr/local/bin/assoc_count
}}}

 * if necessary, patch up slightly broken /etc/init.d/usb permissions:
   {{{
chmod 755 /etc/init.d/usb
}}}

 * if necessary, create a symlink in /etc/rc.d to /etc/init.d/snmpd
 {{{
cd /etc/rc.d
ln -s /etc/init.d/snmpd S70snmpd
}}}