vlan interface not work

[Bruce]

Hi Team,

My config file as below, the issue in short is, the vlan interface cannot send any traffic.

for example:
vlan3001. I capture traffic on ens224, and ping a host in same subnet.
there isn't any traffic send out, no arp no icmp no dot1q encap packets send out.
I had review official doc and config example, there isn't help.
could you please file a bug for this issue?

cisco@k8snode1:~$ arp -a
? (100.64.0.10) at <incomplete> on vlan3001

cisco@k8snode1:~$ more /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
network: {config: disabled}

cisco@k8snode1:~$ more /etc/netplan/50-cloud-init.yaml
network:
    ethernets:
        ens192:
            addresses:
            - 10.124.35.190/25
            gateway4: 10.124.35.129
            nameservers:
                addresses:
                - 10.124.46.4
        ens224:
            match:
                    macaddress: 00:50:56:82:79:04
            set-name: ens224
            mtu: 9000
    vlans:
        vlan3967:
            link: ens224
            id: 3967
            dhcp4: true
            routes:
            - to: 224.0.0.0/4
              via: 0.0.0.0
        vlan3001:
            id: 3001
            link: ens224
            addresses:
            - 100.64.0.101/16
            routes:
            - to: 100.65.0.0/16
              via: 100.64.0.1
            - to: 100.64.0.0/16
              via: 100.64.0.1
    version: 2

cisco@k8snode1:~$ ifconfig
docker0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
        inet 172.17.0.1 netmask 255.255.0.0 broadcast 172.17.255.255
        ether 02:42:e6:fd:b1:57 txqueuelen 0 (Ethernet)
        RX packets 0 bytes 0 (0.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 0 bytes 0 (0.0 B)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

ens192: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
        inet 10.124.35.190 netmask 255.255.255.128 broadcast 10.124.35.255
        inet6 fe80::250:56ff:fe82:d8c9 prefixlen 64 scopeid 0x20<link>
        ether 00:50:56:82:d8:c9 txqueuelen 1000 (Ethernet)
        RX packets 423 bytes 53288 (53.2 KB)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 322 bytes 47073 (47.0 KB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

ens224: flags=4099<UP,BROADCAST,MULTICAST> mtu 9000
        ether 00:50:56:82:79:04 txqueuelen 1000 (Ethernet)
        RX packets 0 bytes 0 (0.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 0 bytes 0 (0.0 B)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
        inet 127.0.0.1 netmask 255.0.0.0
        inet6 ::1 prefixlen 128 scopeid 0x10<host>
        loop txqueuelen 1000 (Local Loopback)
        RX packets 239 bytes 20580 (20.5 KB)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 239 bytes 20580 (20.5 KB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

vlan3001: flags=4099<UP,BROADCAST,MULTICAST> mtu 9000
        inet 100.64.0.101 netmask 255.255.0.0 broadcast 100.64.255.255
        ether 00:50:56:82:79:04 txqueuelen 1000 (Ethernet)
        RX packets 0 bytes 0 (0.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 0 bytes 0 (0.0 B)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

vlan3967: flags=4099<UP,BROADCAST,MULTICAST> mtu 9000
        ether 00:50:56:82:79:04 txqueuelen 1000 (Ethernet)
        RX packets 0 bytes 0 (0.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 0 bytes 0 (0.0 B)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

[Bruce (ccieliu)]

Please feel free contact me if you need any log from this issue env.

[Bruce (ccieliu)]

root@k8snode1:~# netplan --debug apply
** (generate:11403): DEBUG: 13:39:47.274: Processing input file /etc/netplan/50-cloud-init.yaml..
** (generate:11403): DEBUG: 13:39:47.274: starting new processing pass
** (generate:11403): DEBUG: 13:39:47.274: ens224: setting default backend to 1
** (generate:11403): DEBUG: 13:39:47.274: ens192: setting default backend to 1
** (generate:11403): DEBUG: 13:39:47.274: vlan3967: setting default backend to 1
** (generate:11403): DEBUG: 13:39:47.274: vlan3001: setting default backend to 1
** (generate:11403): DEBUG: 13:39:47.275: Generating output files..
** (generate:11403): DEBUG: 13:39:47.275: NetworkManager: definition ens224 is not for us (backend 1)
** (generate:11403): DEBUG: 13:39:47.275: NetworkManager: definition ens192 is not for us (backend 1)
** (generate:11403): DEBUG: 13:39:47.275: NetworkManager: definition vlan3967 is not for us (backend 1)
** (generate:11403): DEBUG: 13:39:47.275: NetworkManager: definition vlan3001 is not for us (backend 1)
DEBUG:netplan generated networkd configuration exists, restarting networkd
DEBUG:no netplan generated NM configuration exists
DEBUG:ens192 not found in {}
DEBUG:ens224 not found in {'ens192': {'addresses': ['10.124.35.190/25'], 'gateway4': '10.124.35.129', 'nameservers': {'addresses': ['10.124.46.4']}}}
DEBUG:vlan3967 not found in {}
DEBUG:vlan3001 not found in {'vlan3967': {'link': 'ens224', 'id': 3967, 'dhcp4': True, 'routes': [{'to': '224.0.0.0/4', 'via': '0.0.0.0'}]}}
DEBUG:Merged config:
network:
  bonds: {}
  bridges: {}
  ethernets:
    ens192:
      addresses:
      - 10.124.35.190/25
      gateway4: 10.124.35.129
      nameservers:
        addresses:
        - 10.124.46.4
    ens224:
      match:
        macaddress: 00:50:56:82:79:04
      mtu: 9000
      set-name: ens224
  vlans:
    vlan3001:
      addresses:
      - 100.64.0.101/16
      id: 3001
      link: ens224
      routes:
      - to: 100.65.0.0/16
        via: 100.64.0.1
      - to: 100.64.0.0/16
        via: 100.64.0.1
    vlan3967:
      dhcp4: true
      id: 3967
      link: ens224
      routes:
      - to: 224.0.0.0/4
        via: 0.0.0.0
  wifis: {}

DEBUG:Skipping non-physical interface: lo
DEBUG:device ens192 operstate is up, not changing
DEBUG:Skipping non-physical interface: vlan3001
DEBUG:Skipping non-physical interface: vlan3967
DEBUG:Skipping non-physical interface: docker0
DEBUG:{}
DEBUG:netplan triggering .link rules for lo
DEBUG:netplan triggering .link rules for ens192
DEBUG:netplan triggering .link rules for ens224
DEBUG:netplan triggering .link rules for vlan3001
DEBUG:netplan triggering .link rules for vlan3967
DEBUG:netplan triggering .link rules for docker0