On 6/20/21 11:01 AM, Birger Koblitz wrote:
Hi,
On 19.06.21 14:25, Hauke Mehrtens wrote:
Hi,
I am unable to send and receive packets directly on the lan1 interface when it
is not part of a bridge.
In wireshark on a connected host I do not see any packets from this device, but
the link is up.
When I use OpenWrt's default network configuration using a bridge, network
works like expected.
I took care of the VLAN 100 which is used by default, but this setup does not
use any VLAN.
I would like to use a very similar configuration for the failsafe mode which is
also not working correctly.
This is the same finding tmon had:
https://forum.openwrt.org/t/support-for-rtl838x-based-managed-switches/57875/598
The reason is a hardware limitation on RTL chip families 8380-9300, they
require a port to be a member of VLAN 1
in order to send/receive traffic:
https://forum.openwrt.org/t/support-for-rtl838x-based-managed-switches/57875/602
I am not sure how to proceed. One solution is to set this up silently in the
driver, but then the existence of
vlan 1 would be intransparent to the user, a possible security risk.
Birger
Hi,
Thank you for the links, I was not aware of this strange problem.
Do you have access to a documentation of any of these chips or only some
source code?
We could add some special handling for these chips in the failsafe mode,
let me look into this.
Hauke
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