[Commotion-discuss] Olsrd setup guide?
Adam Longwill
adam.longwill at metamesh.org
Sat Jun 27 12:33:59 EDT 2015
Thank you, Ben, this is excellent. we will take a look at this and compare
it to our configurations.
Adam Longwill
On Thu, Jun 25, 2015 at 7:46 PM, Ben West <ben at gowasabi.net> wrote:
> Relevant OLSR documentation can be difficult to locate, since its
> configuration is OS-dependent (e.g. Desktop linux vs OpenWRT). The olsrd
> devs themselves tend to focus just on the tool and not the platform where
> it's being deployed. My understanding is that Commotion itself will deploy
> reasonable configuration to /etc/config/olsrd on its nodes, depending
> gateway or repeater role.
>
> Also, I've learned that minimal OLSR config is generally the best, leaving
> default options in place wherever possible.
>
> Here is the README about OLSR extensions, directly from olsr.org, which
> tries to be OS-agnostic:
> http://olsr.org/git/?p=olsrd.git;a=blob;f=README-Olsr-Extensions
>
> Below is configuration I'm testing out on a mesh of 3 UBNT M5 nodes
> running OpenWRT Chaos Calmer v46069, i.e. no Commotion or 3rd party
> elements. The OLSR parameters were borrowed from Freifunk Berlin (on the
> assumption they have successfully deployed such on a large scale). Also
> note that the repeater nodes have configuration for non-existent "wan"
> interfaces, and that the gateway node has no firewall restrictions on its
> (existent) wan interface, since this is just a test mesh.
>
> This setup works reasonably so far, with the specific exception of some
> repeater nodes (but not all!) with 2 hops failing to build a functional
> SmartGateway tunnel back to the gateway node, e.g. they get no route to the
> outside. The reason for this exception is thus far unknown to me, despite
> some hair pulling.
>
>
> *Gateway node ...*
> */etc/config/wireless:*
> config wifi-device radio0
> option type mac80211
> option channel 36
> option hwmode 11a
> option path 'pci0000:00/0000:00:00.0'
> option htmode HT20
> option 'country' 'US'
> option beacon_int '1000'
> option disabled 0
>
> config wifi-iface wlan0
> option device radio0
> option network 'mesh'
> option mode 'adhoc'
> option mcast_rate '12000'
> option ssid MyMeshSSID
> option bssid '02:CA:FF:EE:BA:BE'
> option encryption 'psk2+aes'
> option key '...'
>
>
> */etc/config/network:*config interface 'loopback'
> option ifname 'lo'
> option proto 'static'
> option ipaddr '127.0.0.1'
> option netmask '255.0.0.0'
>
> config interface 'wan'
> option ifname 'eth0'
> option proto 'dhcp'
>
> config interface 'smarttun'
> option ifname 'tunl0'
> option proto 'none'
>
> config 'interface' 'mesh'
> option ifname 'wlan0'
> option 'proto' 'static'
> option 'ipaddr' '10.12.1.1'
> option 'netmask' '255.255.255.0'
>
>
> */etc/config/olsrd:*config olsrd
> option IpVersion '4'
> option FIBMetric 'flat'
> option AllowNoInt 'yes'
> option TcRedundancy '2'
> option NatThreshold '0.75'
> option LinkQualityAlgorithm 'etx_ffeth'
> option SmartGateway 'yes'
> option SmartGatewayThreshold '50'
> option Pollrate '0.1'
> option SmartGatewayUplink 'ipv4'
>
> config 'LoadPlugin'
> option 'library' 'olsrd_arprefresh.so.0.1'
>
> config 'LoadPlugin'
> option 'library' 'olsrd_dyn_gw.so.0.5'
> option 'HNA' '0.0.0.0 0.0.0.0'
> option Ping '8.8.8.8'
> option PingInterval '30'
> option PingCmd 'ping -c 1 -q %s'
>
> config 'LoadPlugin'
> option 'library' 'olsrd_nameservice.so.0.3'
> option 'sighup_pid_file' '/var/run/dnsmasq.pid'
> option 'suffix' '.mesh'
>
> config 'LoadPlugin'
> option 'library' 'olsrd_txtinfo.so.0.1'
> option 'port' '2006'
> option 'Accept' '127.0.0.1'
>
> config InterfaceDefaults
> option MidValidityTime '500.0'
> option TcInterval '2.0'
> option HnaValidityTime '125.0'
> option HelloValidityTime '125.0'
> option TcValidityTime '500.0'
> option Ip4Broadcast '255.255.255.255'
> option MidInterval '25.0'
> option HelloInterval '3.0'
> option HnaInterval '10.0'
>
> config 'Interface'
> list 'interface' 'wan'
> option 'Mode' 'ether'
>
> config 'Interface'
> list 'interface' 'mesh'
> option 'Mode' 'mesh'
>
>
> */etc/config/firewall:*config defaults
> option syn_flood 1
> option input ACCEPT
> option output ACCEPT
> option forward REJECT
> option disable_ipv6 1
>
> config 'zone'
> option 'name' 'mesh'
> option 'network' 'mesh smarttun'
> option 'input' 'ACCEPT'
> option 'output' 'ACCEPT'
> option 'masq' '1'
> option 'forward' 'REJECT'
>
> config zone
> option name wan
> option network 'wan'
> option input ACCEPT
> option output ACCEPT
> option forward REJECT
> option masq 1
> option mtu_fix 1
>
> config 'forwarding'
> option 'src' 'mesh'
> option 'dest' 'wan'
>
> config 'forwarding'
> option 'src' 'mesh'
> option 'dest' 'mesh'
>
> config 'forwarding'
> option 'src' 'wan'
> option 'dest' 'mesh'
>
> config 'forwarding'
> option 'src' 'wan'
> option 'dest' 'wan'
>
>
> *Repeater nodes ...*
> */etc/config/wireless: same as gateway node*
>
>
> */etc/config/network:*config interface loopback
> option ifname lo
> option proto static
> option ipaddr 127.0.0.1
> option netmask 255.0.0.0
>
> config interface wan
> option proto dhcp
> option type bridge
>
> config 'interface' 'mesh'
> option ifname 'wlan0'
> option 'proto' 'static'
> option 'ipaddr' '10.12.1.X'
> option 'netmask' '255.255.255.0'
>
> config interface lan
> option ifname eth0
> option type bridge
> option proto static
> option 'dns' '208.67.222.222 208.67.220.220'
> option ipaddr 192.168.X.1
> option netmask 255.255.255.0
>
> */etc/config/olsrd: same as gateway node*
>
> /etc/config/firewall:
> config defaults
> option syn_flood 1
> option input ACCEPT
> option output ACCEPT
> option forward REJECT
> option disable_ipv6 1
>
> config 'zone'
> option 'name' 'mesh'
> option 'network' 'mesh'
> option 'input' 'ACCEPT'
> option 'output' 'ACCEPT'
> option 'masq' '1'
> option 'forward' 'REJECT'
>
> config zone
> option name lan
> option network 'lan'
> option input ACCEPT
> option output ACCEPT
> option forward REJECT
> option masq 1
>
> config zone
> option name wan
> option network 'wan'
> option input ACCEPT
> option output ACCEPT
> option forward REJECT
> option masq 1
>
> config 'forwarding'
> option 'src' 'wan'
> option 'dest' 'mesh'
>
> config 'forwarding'
> option 'src' 'mesh'
> option 'dest' 'mesh'
>
> config 'forwarding'
> option 'src' 'lan'
> option 'dest' 'mesh'
>
> config 'forwarding'
> option 'src' 'mesh'
> option 'dest' 'lan'
>
> config 'forwarding'
> option 'src' 'lan'
> option 'dest' 'lan'
>
> On Tue, Jun 23, 2015 at 4:21 PM, Adam Longwill <adam.longwill at metamesh.org
> > wrote:
>
>> Does anyone have a guide or even just want to explain to setting up olsrd
>> in openwrt?
>>
>> I'm trying to improve my personal understanding of the basic
>> configuration required to build an olsr mesh with OpenWRT so I can better
>> understand Commotion but I am finding it difficult to learn from videos in
>> other languages or high level descriptions of olsr.
>>
>> I am simply trying to make two routers talk to each other- one is
>> connected to the Internet and the other is sitting across the room. They
>> are on the same meshing wireless network but I cannot find a straight
>> forward basic setup tutorial anywhere.
>>
>> I'm sure we could all benefit from this discussion. So how about it? How
>> does one set up a basic olsr mesh network to access the Internet between
>> two routers on OpenWRT?
>>
>> I'll be happy to share my configs and describe what I've done.
>>
>> Adam Longwill
>>
>> _______________________________________________
>> Commotion-discuss mailing list
>> Commotion-discuss at lists.chambana.net
>> https://lists.chambana.net/mailman/listinfo/commotion-discuss
>>
>>
>
>
> --
> Ben West
> http://gowasabi.net
> ben at gowasabi.net
> 314-246-9434
>
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