Re: Batman_V Originator Loop Issue

Simon Wunderlich
2020-07-08T09:15:40Z

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Hi Luke,

can you please describe which nodes are connected to the LAN and which are
not? You say "one is connected to LAN" and the others are "operating as an
access point", does that mean they are not connected to the same LAN via
Ethernet?

If multiple nodes are connected and bridged to the same LAN, bridge loop
avoidance should be enabled - you have that in your config, but you could
double check with "batctl bl" and then "batctl bbt"/"batctl cl" (please post
these tables if you think this could be connected).

You could also try disabling distributed arp table and multicast mode, just to
make sure this is not shooting us in the foot here. Those optimizations are
not really needed for such a small network.

Cheers,
Simon

On Tuesday, July 7, 2020 9:47:31 PM CEST lavincent15@gmail.com wrote:
> Running batctl 2020.1-openwrt-1 [batman-adv: 2020.1-openwrt-2]
>
> When running a two node network with one node connected to my lan and the
> other operating as an access point, my network works great. I can connect
> clients to my batman nodes and access my LAN.
>
> When booting up a third node. My network works for 1 minute, then breaks
> down. My LAN cannot ping any of the batman nodes anymore.
>
> I keep receiving messages like this: "[ 2900.755655] br-lan: received packet
> on bat0 with own address as source address (addr:8c:ae:4c:db:14:5c,
> vlan:0)" which signifies a bridge loop I think.
>
> My originator messages look wrong as I can see my host originator messages
> along with all the neigbor nodes:
>
> root@OpenWrt:/etc/config# batctl o -n
> [B.A.T.M.A.N. adv 2020.1-openwrt-2, MainIF/MAC: mesh0/00:30:1a:4e:b8:26
> (bat0/f2:07:f1:5f:e0:78 BATMAN_V)] Originator last-seen (
> throughput) Nexthop [outgoingIF] * 00:30:1a:4e:b8:18 0.570s (
> 86.7) 00:30:1a:4e:b8:2e [ mesh0] 00:30:1a:4e:b8:18 0.570s (
> 21.6) 00:30:1a:4e:b8:18 [ mesh0] * 00:30:1a:4e:b8:2e 1.510s (
> 212.6) 00:30:1a:4e:b8:2e [ mesh0] 00:30:1a:4e:b8:2e 1.510s (
> 38.9) 00:30:1a:4e:b8:18 [ mesh0] 00:30:1a:4e:b8:26 1.510s (
> 38.9) 00:30:1a:4e:b8:18 [ mesh0] * 00:30:1a:4e:b8:26 1.510s (
> 108.9) 00:30:1a:4e:b8:2e [ mesh0]
>
> root@OpenWrt:/etc/config# batctl n -n
> [B.A.T.M.A.N. adv 2020.1-openwrt-2, MainIF/MAC: mesh0/00:30:1a:4e:b8:26
> (bat0/f2:07:f1:5f:e0:78 BATMAN_V)] IF Neighbor
> last-seen
> 00:30:1a:4e:b8:2e 0.490s ( 179.0) [ mesh0]
> 00:30:1a:4e:b8:18 0.380s ( 79.2) [ mesh0]
>
>
>
> Here is my /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 globals 'globals'
> option ula_prefix 'fdc4:e092:8929::/48'
>
> config interface 'lan'
> option type 'bridge'
> option proto 'static'
> option ipaddr '192.168.0.32'
> option netmask '255.255.255.0'
> option ip6assign '60'
> option gateway '192.168.0.1'
> list dns '8.8.8.8'
> option ifname 'bat0 eth0'
>
> config interface 'nwi_mesh0'
> option mtu '2304'
> option proto 'batadv_hardif'
> option master 'bat0'
>
> config interface 'bat0'
> option proto 'batadv'
> option routing_algo 'BATMAN_V'
> option aggregated_ogms '1'
> option ap_isolation '0'
> option bonding '0'
> option fragmentation '1'
> option gw_mode 'server'
> option log_level '0'
> option orig_interval '1000'
> option bridge_loop_avoidance '1'
> option distributed_arp_table '1'
> option multicast_mode '1'
> option network_coding '0'
> option hop_penalty '30'
> option isolation_mark '0x00000000/0x00000000'
>
>
> And here is my /etc/config/wireless
> root@OpenWrt:/etc/config# cat wireless
> config wifi-device 'radio0'
> option type 'mac80211'
> option channel '36'
> option hwmode '11a'
> option path
> 'soc0/soc/1ffc000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0' option htmode
> 'VHT80'
>
> config wifi-iface 'mesh0'
> option device 'radio0'
> option ifname 'mesh0'
> option network 'nwi_mesh0'
> option mode 'mesh'
> option mesh_fwding '0'
> option mesh_id 'batman_mesh'
> option encryption 'none'
>
> config wifi-iface 'wifinet0'
> option device 'radio0'
> option mode 'ap'
> option ssid 'N2-Lander'
> option encryption 'psk2'
> option key 'finnjamin'
> option ifname 'wlan0'
> option network 'lan'
>
>
> Any and all help is greatly appreciated

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