Ubuntuを複数VLAN/SSID吹けるAPにしてみる ref: https://qiita.com/yas-nyan/items/10151034ed87e27a52ec

iterfaces

auto lo
iface lo inet loopback

# 元のeth0はautoで立ち上がらせないようにしておく。
#auto eth0

auto eth0.200
iface eth0.200 inet static
        address 10.200.200.100
        netmask 255.255.0.0
        gateway 10.200.0.1
        vlan-raw-device eth0
        nameservers 8.8.8.8
        nameservers 8.8.4.4
auto eth0.100
iface eth0.100 inet static
        address 10.100.200.100
        netmask 255.255.0.0
        gateway 10.100.0.1
        vlan-raw-device eth0
        nameservers 8.8.8.8
        nameservers 8.8.4.4

vlan

%ls
config  eth0.100  eth0.200

%sudo cat config
VLAN Dev name    | VLAN ID
Name-Type: VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
eth0.200       | 200  | eth0
eth0.100       | 100  | eth0


% sudo   cat eth0.200
eth0.200  VID: 200       REORDER_HDR: 1  dev->priv_flags: 1
         total frames received         1497
          total bytes received       171346
      Broadcast/Multicast Rcvd          167

      total frames transmitted          784
       total bytes transmitted       101369
Device: eth0
INGRESS priority mappings: 0:0  1:0  2:0  3:0  4:0  5:0  6:0 7:0
 EGRESS priority mappings:

~

# 一例
create_ap -m bridge wlan0 eth0.100 --ieee80211n --ht_capab '[HT40+]'  business musenlanbenrithanyusen