search

freifunk-berlin / firmware

DEPRECATED: Build system for Berlin firmware. Please user the pinned falter-repos instead
https://berlin.freifunk.net
GNU General Public License v3.0
74 stars 34 forks source link

Batman-adv MTU #681

Closed Aldrighetti closed 5 years ago

Aldrighetti commented 5 years ago

After Update to hedy 1.0.2 from 0.1.0 i got the following error in kernel Logs:

batman_adv: bat0: The MTU of interface br-fflan is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.

Obviously the mtu is configured to 1532 in /etc/config/network for br-fflan but not recognized. Perhaps this is related to netifd?? Referenz

SvenRoederer commented 5 years ago

have you checked https://wiki.freifunk.net/Berlin:Tutorial:Mesh_via_LAN#Bonuslevel:_B.A.T.M.A.N._aktivieren_via_ssh --> point 5.)

config interface 'wireless0" option mtu '1532'

Aldrighetti commented 5 years ago

There's something odd; my wireless Adhoc Interface got the mtu of 1532 but not my bridge br-fflan. I#m not sure if there are config/declaration changes and because of my config for the bridge (eth0 eth1) isn#t working anymore

kls0e commented 5 years ago

this seems to be a common issue with bridges, please see https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1399064