[SOLVED] Bridging eth0.1 and eth1.1 does not work

Installing and Using OpenWrt
1

Hello Guys,

following problem:

I have a TPlink Archer C7 / AC1750 v2. I'am using it in AP-Mode - means no NATting, Firewall or DHCP enabled.

The WAN-Port (eth0) is used for the connection to the gateway.

When create an interface bridging a WLAN and eth0.1 (default VLAN) everything works fine.

But when I try to add another port from eth1 (eth1.1) to the bridge ALL Ports (even the WLAN) on this bridge are inaccessible (except for ICMP which is working).

config switch
        option name 'switch0'
        option reset '1'
        option enable_vlan '1'

config switch_vlan
        option device 'switch0'
        option vlan '1'
        option vid '1'
        option ports '0t 1 4 6t'

config interface 'Uplink_eth0'
        option proto 'static'
        option type 'bridge'
        option netmask '255.255.255.0'
        option delegate '0'
        option gateway '192.168.22.99'
        option ipaddr '192.168.22.3'
        list dns '192.168.22.1'
        option ifname 'eth0.1 eth1.1'  #this is not working
        option ifname 'eth0.1'  #this is working

/etc/config/wireless:
config wifi-iface 'wifinet6'
	option ssid 'Pretty Fly For A Wifi'
	option encryption 'psk2'
	option device 'radio0'
	option mode 'ap'
	option network 'Uplink_eth0'

Do you have an idea about that?

2

Both eth0 and eth1 are connected to the switch. If you bridge them, you will create a switching loop between the switch and the software bridge, causing broadcast storm.

Instead, you should update you swconfig settings:
option ports '0t 1 2 3 4 5 6t'
and use either eth0.1 or eth1.1 as LAN.

3 Likes
3

@LGA1150 THIS explains a lot!
Thank you very much! Its working now as expected.

4

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