[Olsr-users] Howto feed routing-table into OLSRd2?

[Bastian Rosner]

On 06/14/2015 02:12 PM, Henning Rogge wrote:
> On Sun, Jun 14, 2015 at 2:00 PM, Bastian Rosner <(spam-protected)> wrote:
>> Hi,
>>
>> just to make sure that this is not related to any IPv6 settings, i
>> adjusted the configuration to be IPv4-only and changed to logging behavior:
>>
>> According to logs plugin lan_import loaded fine. Also inserting
>> neighbors route to table 123 succeeded:
>>
>> 13:48:48.293 INFO(olsrv2_routing)
>> src-plugins/olsrv2/olsrv2/olsrv2_routing.c 767: Set route 'src-ip - gw
>> 169.254.1.2 dst 10.31.105.4 src-prefix - metric 2 table 123 protocol 100
>> if eth1.31 (5)' (0 0 -)
>> 13:48:48.293 INFO(olsrv2_routing)
>> src-plugins/olsrv2/olsrv2/olsrv2_routing.c 935: Successfully set route
>> 'src-ip 10.31.105.5 gw 169.254.1.2 dst 10.31.105.4 src-prefix - metric 2
>> table 123 protocol 100 if eth1.31 (5)'
>>
>> Log also contains the following message:
>>
>> 13:52:29.683 WARN(os_routing)
>> src-plugins/subsystems/os_linux/os_system_linux.c 503: netlink recvmsg
>> error: No buffer space available (105)
>>
>> Do i need to run a recent version of olsrv2 on openwrt-side to accept
>> attached-network routes generated by ubuntu's lan_import?
> 
> No, there is no change needed on the receiver side...
> 
> We just hit a bottleneck in the netlink code. And I used a full
> pagesize of memory for the netlink buffer!
> 
> Just to be sure, how many routes are you trying to import?

Not that many i guess:
# ip -4 r s table 100 |wc -l
846
# ip -6 r s table 100 |wc -l
586