Cannot change MTU of eth0
Posted: Mon Jul 12, 2021 7:44 am
HI,
I've installed the NanoPC-T4 with rk3399-eflasher-friendlycore-lite-focal-4.19-arm64-20210617.img.
only ip link set eth0 mtu 45 (and lower values) result in Error: mtu less than device minimum.; the same happens for MTU >= 3711: Error: mtu greater than device maximum.
In Kernel 4.4 I was able to change the MTU of eth0.
What can I do to fix this problem in kernel 4.19.111?
I've installed the NanoPC-T4 with rk3399-eflasher-friendlycore-lite-focal-4.19-arm64-20210617.img.
- ip link set eth0 down
- ip link set eth0 mtu 2000
only ip link set eth0 mtu 45 (and lower values) result in Error: mtu less than device minimum.; the same happens for MTU >= 3711: Error: mtu greater than device maximum.
In Kernel 4.4 I was able to change the MTU of eth0.
What can I do to fix this problem in kernel 4.19.111?