Configurei minha máquina Linux como um roteador e ponto de acesso. Funciona muito bem, com uma exceção. Depois de cada reinicialização, tenho que fazer sudo netplan applypara que funcione corretamente. Também há uma diferença ip aque pode ser vista após aplicar as configurações do netplan. Aqui você pode ver o ip aresultado após uma reinicialização:
rdlver@rdlver1:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host noprefixroute
valid_lft forever preferred_lft forever
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq master br0 state DOWN group default qlen 1000
link/ether 2c:cf:67:75:12:6d brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 2c:cf:67:75:12:6e brd ff:ff:ff:ff:ff:ff
4: br0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether 1a:f1:3f:8c:c8:77 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.1/24 brd 192.168.1.255 scope global br0
valid_lft forever preferred_lft forever
e depois de aplicar as configurações do netplan:
rdlver@rdlver1:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host noprefixroute
valid_lft forever preferred_lft forever
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq master br0 state DOWN group default qlen 1000
link/ether 2c:cf:67:75:12:6d brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br0 state UP group default qlen 1000
link/ether 2c:cf:67:75:12:6e brd ff:ff:ff:ff:ff:ff
4: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 1a:f1:3f:8c:c8:77 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.1/24 brd 192.168.1.255 scope global br0
valid_lft forever preferred_lft forever
inet6 fe80::18f1:3fff:fe8c:c877/64 scope link
valid_lft forever preferred_lft forever
Aqui você pode ver o /etc/netplan/01-netcfg.yamlarquivo que é aplicado:
network:
version: 2
renderer: networkd
ethernets:
wlan0:
dhcp4: no
eth0:
dhcp4: no
bridges:
br0:
interfaces: [wlan0,eth0]
dhcp4: no
addresses:
- 192.168.1.1/24
Geralmente isso seria aplicado na inicialização. Aqui está o diário de inicialização, a propósito, se alguém puder entender o que está acontecendo aqui:
rdlver@rdlver1:~$ journalctl -b | grep netplan
Aug 27 16:37:49 rdlver1 systemd[1]: netplan-ovs-cleanup.service - OpenVSwitch configuration for cleanup was skipped because of an unmet condition check (ConditionFileIsExecutable=/usr/bin/ovs-vsctl).
Aug 27 16:37:51 rdlver1 (udev-worker)[483]: eth0: Config file /run/systemd/network/10-netplan-eth0.link is applied to device based on potentially unpredictable interface name.
Feb 01 05:13:12 rdlver1 systemd-networkd[1035]: /run/systemd/network/10-netplan-eth0.network: DHCPv6 client is enabled but IPv6 link-local addressing is disabled. Disabling DHCPv6 client.
Feb 01 05:13:12 rdlver1 systemd-networkd[1035]: eth0: found matching network '/run/systemd/network/10-netplan-eth0.network', based on potentially unpredictable interface name.
Feb 01 05:13:12 rdlver1 systemd-networkd[1035]: eth0: Configuring with /run/systemd/network/10-netplan-eth0.network.
Feb 01 05:13:12 rdlver1 systemd-networkd[1035]: wlan0: Configuring with /run/systemd/network/10-netplan-wlan0.network.
Feb 01 05:13:12 rdlver1 systemd-networkd[1035]: br0: Configuring with /run/systemd/network/10-netplan-br0.network.
Feb 01 05:15:18 rdlver1 generate[1249]: Permissions for /etc/netplan/01-netcfg.yaml are too open. Netplan configuration should NOT be accessible by others.
Obrigado por qualquer ajuda!