From f60d0e1ce029925b843f635b36154c90049b9577 Mon Sep 17 00:00:00 2001 From: Christian Poessinger Date: Mon, 22 Aug 2022 17:52:58 +0200 Subject: bridge: T4632: vlan aware bridge lacks CPU forwarding The VLAN aware bridge was forwarding traffic between member ports, but traffic destined torwards the CPU was dropped. This resulted in a gateway not reachable or DHCP leases that could not be handed out. Tested via: VyOS set interfaces bridge br0 enable-vlan set interfaces bridge br0 member interface eth1 allowed-vlan '10' set interfaces bridge br0 member interface eth1 allowed-vlan '20' set interfaces bridge br0 member interface eth1 allowed-vlan '30' set interfaces bridge br0 member interface eth1 allowed-vlan '40' set interfaces bridge br0 member interface eth1 native-vlan '40' set interfaces bridge br0 member interface eth2 allowed-vlan '30' set interfaces bridge br0 member interface eth2 allowed-vlan '20' set interfaces bridge br0 member interface eth2 allowed-vlan '10' set interfaces bridge br0 member interface eth2 allowed-vlan '40' set interfaces bridge br0 vif 10 address '10.0.10.1/24' set interfaces bridge br0 vif 20 address '10.0.20.1/24' set interfaces bridge br0 vif 30 address '10.0.30.1/24' set interfaces bridge br0 vif 40 address '10.0.40.1/24' Arista vEOS vlan 10,20,30,40 interface Ethernet1 switchport trunk allowed vlan 10,20,30,40 interface Vlan10 ip address 10.0.10.2/24 interface Vlan20 ip address 10.0.20.2/24 interface Vlan30 ip address 10.0.30.2/24 interface Vlan40 ip address 10.0.40.2/24 interface Ethernet1 switchport trunk allowed vlan 10,20,30,40 switchport mode trunk spanning-tree portfast Cisco vIOS interface GigabitEthernet0/0 ip address 10.0.40.3 255.255.255.0 duplex auto speed auto media-type rj45 ! interface GigabitEthernet0/0.10 encapsulation dot1Q 10 ip address 10.0.10.3 255.255.255.0 ! interface GigabitEthernet0/0.20 encapsulation dot1Q 20 ip address 10.0.20.3 255.255.255.0 ! interface GigabitEthernet0/0.30 encapsulation dot1Q 30 ip address 10.0.30.3 255.255.255.0 ! --- python/vyos/ifconfig/bridge.py | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) (limited to 'python') diff --git a/python/vyos/ifconfig/bridge.py b/python/vyos/ifconfig/bridge.py index 758967fbc..aa818bc5f 100644 --- a/python/vyos/ifconfig/bridge.py +++ b/python/vyos/ifconfig/bridge.py @@ -295,8 +295,24 @@ class BridgeIf(Interface): self.del_port(member) # enable/disable Vlan Filter - vlan_filter = '1' if 'enable_vlan' in config else '0' - self.set_vlan_filter(vlan_filter) + tmp = '1' if 'enable_vlan' in config else '0' + self.set_vlan_filter(tmp) + + # add VLAN interfaces to local 'parent' bridge to allow forwarding + if 'enable_vlan' in config: + for vlan in config.get('vif_remove', {}): + # Remove old VLANs from the bridge + cmd = f'bridge vlan del dev {self.ifname} vid {vlan} self' + self._cmd(cmd) + + for vlan in config.get('vif', {}): + cmd = f'bridge vlan add dev {self.ifname} vid {vlan} self' + self._cmd(cmd) + + # VLAN of bridge parent interface is always 1. VLAN 1 is the default + # VLAN for all unlabeled packets + cmd = f'bridge vlan add dev {self.ifname} vid 1 pvid untagged self' + self._cmd(cmd) tmp = dict_search('member.interface', config) if tmp: -- cgit v1.2.3