Differences between revisions 15 and 16
Revision 15 as of 2007-02-17 23:16:08
Size: 3228
Comment: flesh out build instructions
Revision 16 as of 2007-02-19 16:05:12
Size: 3242
Comment: sync up to most recent build
Deletions are marked like this. Additions are marked like this.
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CFE> flash -noheader 192.168.0.5:wgt634u/openwrt-wgt634u-2.6-jffs2-r6177.bin flash0.os CFE> flash -noheader 192.168.0.5:wgt634u/openwrt-wgt634u-2.6-jffs2-r6319.bin flash0.os
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src snapshots http://www.personaltelco.net/~russell/openwrt/r6177 src snapshots http://www.personaltelco.net/~russell/openwrt/r6319
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 * patch up slightly broken /etc/init.d/usb permissions:  * if necessary, patch up slightly broken /etc/init.d/usb permissions:

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 r6177) 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-r6319.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/r6319
      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

MississippiNetworkRepeater (last edited 2007-11-23 18:03:15 by localhost)