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User who did this - Stephan Quernheim (Scatman75)
Attached to Project - OpenWrt/LEDE Project
Summary - bcm53xx: vlan break with kernel 5.10.xxx
Task Type - Bug Report
Category - Kernel
Status - Unconfirmed
Assigned To -
Operating System - All
Severity - Medium
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details -
Target: bcm53xx
Device: Asus RT-AC88u
Version: OpenWrt SNAPSHOT, r17818
When trying to use a Vlan configuration with Kernel 5.10.xxx, I cannot use the tagged guest Vlan. Neither a connection nor a ping to the gateway of the guest network is possible. The same configuration under OpenWrt 21.02.0, r16279 (Kernel 5.4.143), the configuration works as expected. Please read the contents of / etc / config / network.
config interface 'loopback'
option device 'lo'
option proto 'static'
option ipaddr '127.0.0.1'
option netmask '255.0.0.0'
config globals 'globals'
option ula_prefix 'fd3f:f501:9a6f::/48'
config device
option name 'br-lan'
option type 'bridge'
list ports 'lan1'
list ports 'lan2'
list ports 'lan3'
list ports 'lan4'
option igmp_snooping '1'
config bridge-vlan
option device 'br-lan'
option vlan '1'
list ports 'lan1:u*'
list ports 'lan2:u*'
config bridge-vlan
option device 'br-lan'
option vlan '3'
list ports 'lan1:t'
list ports 'lan3:u*'
config device
option type 'bridge'
option name 'br1'
list ports 'br-lan.1'
option igmp_snooping '1'
config device
option type 'bridge'
option name 'br3'
list ports 'br-lan.3'
option igmp_snooping '1'
config interface 'lan'
option proto 'static'
option netmask '255.255.255.0'
option ip6assign '60'
option ipaddr '192.168.5.111'
option gateway '192.168.5.1'
option broadcast '192.168.5.255'
list dns '192.168.5.1'
option device 'br1'
option metric '50'
config interface 'guest'
option proto 'static'
option netmask '255.255.255.0'
option ip6assign '60'
option ipaddr '192.168.190.2'
option gateway '192.168.190.1'
option broadcast '192.168.190.255'
list dns '192.168.190.1'
option device 'br3'
option metric '150'
config interface 'wan'
option device 'wan'
option proto 'dhcp'
config interface 'wan6'
option device 'wan'
option proto 'dhcpv6'
A quick note of the above file:
The bridges br1 and br3 are designed as a workaround so that wifi devices can reach the tagged subnets. Without this trick, WiFi devices cannot, for example, log into the guest network. The latter applies to both the kernel 5.4.xxx and the kernel 5.10.xxx.
On the forum user @patient0 confirmed this problem with kernel version 5.10 and 5.15 with my setup, please see https://forum.openwrt.org/t/openwrt-support-for-asus-rt-ac88u/78635/135.
More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=4112
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