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ffthemediumway [2025/10/25 12:37:25] – gaborffthemediumway [2026/02/14 12:01:56] (current) – fix links gabor
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 +===== Installing OpenWRT on the router for the first time =====
 +Go to the [[https://firmware-selector.openwrt.org/|OpenWRT firmware selector]]. Select your device. Download the "factory" firmware and install it to your router as described on the device's OpenWRT wiki page. (e.g. [[https://openwrt.org/toh/ubiquiti/edgerouter_x_er-x_ka]]) 
 +
 +
 +
 +===== Generating the funkfeuer firmware image =====
 +
 +  - Go to the [[https://firmware-selector.openwrt.org/|OpenWRT firmware selector]]. 
 +  - Select your device. 
 +  - Click on "Customize installed packages and/or first boot script". 
 +  - Add the following packages to the list 
 +
 +
 +<file>curl mtr iperf3 tcpdump olsrd olsrd-mod-jsoninfo luci-app-olsr ethtool ipip kmod-ipip
 +</file>
 +
 +  - Copy the following script and paste it to "Script to run on first boot (uci-defaults)" on the image builder website 
 +  - Replace xxx in the first line with your location's name 
 +  - (optional) change LAN_IP and LAN_NET 
 +The script contains some default values that make configuration easier. 
 +
 +
 +
 +<file>#openwrt config script for funkfeuer graz
 +#written by gabor
 +export FF_HOSTNAME="xxx.graz.funkfeuer.at"
 +export LAN_IP="192.168.10.1/24"
 +export LAN_NET="192.168.10.0/24"
 +
 +#check if already configured. prevents overwriting settings when upgrading openwrt
 +[ "$(uci -q get system.@system[0].hostname)" = "$FF_HOSTNAME" ] && exit 0
 +
 +#disable olsrd6 (not used in ffgraz)
 +/etc/init.d/olsrd6 stop
 +/etc/init.d/olsrd6 disable
 +
 +# /etc/config/dhcp
 +uci del dhcp.@dnsmasq[0].server
 +uci del dhcp.@dnsmasq[0].address
 +uci del dhcp.@dnsmasq[0].filterwin2k
 +uci del dhcp.@dnsmasq[0].nonegcache
 +uci del dhcp.@dnsmasq[0].nonwildcard
 +uci del dhcp.@dnsmasq[0].filter_aaaa
 +uci del dhcp.@dnsmasq[0].filter_a
 +
 +#set dns resolver to 10.12.0.10
 +uci add_list dhcp.@dnsmasq[0].server='10.12.0.10'
 +
 +#enable reverse dns lookup for 10.12.xxx.xxx addresses
 +uci add_list dhcp.@dnsmasq[0].address='/.12.10.in-addr.arpa/10.12.0.10'
 +uci set dhcp.@dnsmasq[0].boguspriv='0'
 +
 +uci del dhcp.free
 +
 +uci set dhcp.free=dhcp
 +uci set dhcp.free.interface='free'
 +uci set dhcp.free.start='10'
 +uci set dhcp.free.limit='254'
 +uci set dhcp.free.leasetime='1h'
 +uci add_list dhcp.free.dhcp_option='6,10.12.0.10'
 +
 +# /etc/config/firewall
 +while uci -q delete firewall.@zone[0]; do :; done
 +while uci -q delete firewall.@forwarding[0]; do :; done
 +while uci -q delete firewall.@nat[0]; do :; done
 +while uci -q delete firewall.@rule[0]; do :; done
 +uci set firewall.cfg01e63d.synflood_protect='1'
 +uci add firewall zone # =cfg0edc81
 +uci set firewall.@zone[-1].name='ff'
 +uci set firewall.@zone[-1].input='DROP'
 +uci set firewall.@zone[-1].output='ACCEPT'
 +uci set firewall.@zone[-1].forward='ACCEPT'
 +uci add_list firewall.@zone[-1].network='ffeth'
 +uci add_list firewall.@zone[-1].network='ffwifimesh'
 +
 +uci add firewall zone
 +uci set firewall.@zone[-1].name='lan'
 +uci set firewall.@zone[-1].input='ACCEPT'
 +uci set firewall.@zone[-1].output='ACCEPT'
 +uci set firewall.@zone[-1].forward='DROP'
 +uci add_list firewall.@zone[-1].network='lan'
 +
 +uci add firewall rule # =cfg0f92bd
 +uci set firewall.@rule[-1].name='ssh'
 +uci add_list firewall.@rule[-1].proto='tcp'
 +uci set firewall.@rule[-1].src='ff'
 +uci set firewall.@rule[-1].dest_port='22'
 +uci set firewall.@rule[-1].target='ACCEPT'
 +uci set firewall.@rule[-1].name='ssh ff'
 +
 +uci add firewall rule # =cfg1092bd
 +uci set firewall.@rule[-1].name='olsrd'
 +uci add_list firewall.@rule[-1].proto='udp'
 +uci set firewall.@rule[-1].src='ff'
 +uci set firewall.@rule[-1].dest_port='698'
 +uci set firewall.@rule[-1].target='ACCEPT'
 +uci set firewall.@rule[-1].name='olsrd ff'
 +
 +uci add firewall zone # =cfg11dc81
 +uci set firewall.@zone[-1].name='free'
 +uci set firewall.@zone[-1].input='DROP'
 +uci set firewall.@zone[-1].output='ACCEPT'
 +uci set firewall.@zone[-1].forward='DROP'
 +uci add_list firewall.@zone[-1].network='free'
 +
 +uci add firewall forwarding # =cfg13ad58
 +uci set firewall.@forwarding[-1].src='lan'
 +uci set firewall.@forwarding[-1].dest='ff'
 +
 +uci add firewall forwarding # =cfg12ad58
 +uci set firewall.@forwarding[-1].src='free'
 +uci set firewall.@forwarding[-1].dest='ff'
 +
 +uci add firewall nat # =cfg1393c8
 +uci set firewall.@nat[-1].name='nat free wifi to ff'
 +uci add_list firewall.@nat[-1].proto='all'
 +uci set firewall.@nat[-1].src='ff'
 +uci set firewall.@nat[-1].src_ip='10.14.0.0/24'
 +uci set firewall.@nat[-1].target='MASQUERADE'
 +
 +uci add firewall nat # =cfg1393c8
 +uci set firewall.@nat[-1].name='nat lan to ff'
 +uci add_list firewall.@nat[-1].proto='all'
 +uci set firewall.@nat[-1].src='ff'
 +uci set firewall.@nat[-1].src_ip="$LAN_NET"
 +uci set firewall.@nat[-1].target='MASQUERADE'
 +
 +uci add firewall rule # =cfg1492bd
 +uci set firewall.@rule[-1].name='web'
 +uci add_list firewall.@rule[-1].proto='tcp'
 +uci set firewall.@rule[-1].src='ff'
 +uci set firewall.@rule[-1].dest_port='80'
 +uci set firewall.@rule[-1].target='ACCEPT'
 +uci set firewall.@rule[-1].name='web ff'
 +
 +
 +uci add firewall rule # =cfg1592bd
 +uci set firewall.@rule[-1].name='ssh free'
 +uci add_list firewall.@rule[-1].proto='tcp'
 +uci set firewall.@rule[-1].src='free'
 +uci set firewall.@rule[-1].dest_port='22'
 +uci set firewall.@rule[-1].target='ACCEPT'
 +
 +
 +uci add firewall rule # =cfg1692bd
 +uci set firewall.@rule[-1].name='icmp ff'
 +uci add_list firewall.@rule[-1].proto='icmp'
 +uci set firewall.@rule[-1].src='ff'
 +uci set firewall.@rule[-1].target='ACCEPT'
 +
 +uci add firewall rule # =cfg1792bd
 +uci set firewall.@rule[-1].name='icmp free'
 +uci add_list firewall.@rule[-1].proto='icmp'
 +uci set firewall.@rule[-1].src='free'
 +uci set firewall.@rule[-1].target='ACCEPT'
 +
 +uci add firewall rule # =cfg0c92bd
 +uci set firewall.@rule[-1].name='dhcp free'
 +uci add_list firewall.@rule[-1].proto='udp'
 +uci set firewall.@rule[-1].src='free'
 +uci set firewall.@rule[-1].src_port='68'
 +uci set firewall.@rule[-1].dest_port='67'
 +uci set firewall.@rule[-1].target='ACCEPT'
 +
 +# /etc/config/network
 +uci del network.wan
 +uci del network.wan6
 +
 +uci del network.lan.netmask
 +uci del network.lan.ipaddr
 +uci add_list network.lan.ipaddr="$LAN_IP"
 +
 +uci del network.globals.ula_prefix
 +uci set network.globals.packet_steering='1'
 +
 +uci add network device # =cfg080f15
 +uci set network.@device[-1].type='bridge'
 +uci set network.@device[-1].name='br-free'
 +uci set network.@device[-1].bridge_empty='1'
 +
 +uci del network.free
 +uci set network.free=interface
 +uci set network.free.device='br-free'
 +uci set network.free.proto='static'
 +uci add_list network.free.ipaddr='10.14.0.1/24'
 +
 +# /etc/config/wireless
 +i=0
 +while uci -q get "wireless.radio$i"
 +do
 + uci set wireless.wifinetfree$i=wifi-iface
 + uci set wireless.wifinetfree$i.device=radio$i
 + uci set wireless.wifinetfree$i.mode='ap'
 + uci set wireless.wifinetfree$i.ssid='Free WiFi - graz.funkfeuer.at'
 + uci set wireless.wifinetfree$i.encryption='none'
 + uci set wireless.wifinetfree$i.network='free'
 + uci set wireless.wifinetfree$i.disabled='1'
 + i=$(( $i + 1 ))
 +done
 +
 +# /etc/config/system
 +uci del system.ntp.enabled
 +uci del system.ntp.enable_server
 +uci set system.cfg01e48a.hostname=$FF_HOSTNAME
 +uci set system.cfg01e48a.zonename='Europe/Vienna'
 +uci set system.cfg01e48a.timezone='CET-1CEST,M3.5.0,M10.5.0/3'
 +uci set system.cfg01e48a.log_proto='udp'
 +uci set system.cfg01e48a.conloglevel='8'
 +uci set system.cfg01e48a.cronloglevel='5'
 +# /etc/config/wireless
 +
 +while uci -q delete olsrd.@Interface[0]; do :; done
 +
 +uci set olsrd.@LoadPlugin[-1].ignore='0'
 +uci set olsrd.@LoadPlugin[-1].library='olsrd_jsoninfo'
 +
 +while uci -q delete olsrd.@InterfaceDefaults[0]; do :; done
 +uci add olsrd InterfaceDefaults
 +uci set olsrd.@InterfaceDefaults[-1].Mode='ether'
 +uci set olsrd.@InterfaceDefaults[-1].Ip4Broadcast='255.255.255.255'
 +
 +</file>
 + 
 +
 +
 +  - Click on "Request Build" and wait for the build to complete. 
 +  - Download the newly built custom sysupgrade image 
 +  - Log in to your router using the web interface ([[http://192.168.1.1|http://192.168.1.1]]) 
 +  - Go to "System->Backup/Flash Firmware" 
 +  - Click on "Flash image" and select your newly downloaded sysupgrade image. 
 +  - Untick the box "Keep settings and retain the current configuration" 
 +  - Click "Continue" 
 +
 +
 +===== Accessing the router =====
 +After the installation has completed the router should be reachable by connecting to it LAN port using the configured LAN_IP (192.168.10.1 as default). 
 +
 +
 +
 +===== TODO: add interfaces for olsrd, setup olsrd, setup wifi, setup free wifi =====
 +
  
ffthemediumway.txt · Last modified: by gabor
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