My parents are getting a fiber connection in Germany. Last time I visited them, I thought I prepared everything sufficiently with pictures which cables to replug, but unfortunately, I just learned that the OpenWRT router needs to be reconfigured to PPPoE AND VLAN tag 7 needs to be set.
Currently, the WAN interface just gets an IP assigned via DHCP, untagged.
My parents are around 80 and "computer knowledge resistant". I probably would have been able with a lot of tears to guide them through the process of changing over the WAN interface, but whole new interfaces are pretty much out of question.
I wonder if it is possible to just add the tagged interface now remotely, and then just guide them via phone to change to PPPoE and set the already existing VLAN device as new device for WAN.
The thing is, I absolutely cannot break anything and lose access. Driving there is a 500km roundtrip, for which I will not have time for at least 2 weeks. It would mean 2 seniors without even a phone in that time. Same for when the access switches to fiber, though, so at some point I have to do something ...
So, is this correct?:
config device
option name 'wan'
option macaddr '...'
config interface 'wan'
option device 'wan'
option proto 'dhcp'
config interface 'wan_vlan7'
option device 'wan.7'
option proto 'dhcp'
and would not break the current connection?
Would they then be able to change the protocol to PPPoE and the interface to wan_vlan7, once the internet is switched over?
Is there anything else I need to remember?
The network also uses VLANs, but not 7. Here is the full config:
config interface 'loopback'
option device 'lo'
option proto 'static'
option ipaddr '127.0.0.1'
option netmask '255.0.0.0'
config globals 'globals'
option ula_prefix '...::/48'
config device
option name 'wan'
option macaddr '...'
config interface 'wan'
option device 'wan'
option proto 'dhcp'
config interface 'wan6'
option device 'wan'
option proto 'dhcpv6'
config device
option name 'br-lan'
option type 'bridge'
list ports 'lan1'
list ports 'lan2'
list ports 'lan3'
config bridge-vlan
option device 'br-lan'
option vlan '1'
list ports 'lan1'
list ports 'lan2'
config bridge-vlan
option device 'br-lan'
list ports 'lan3'
option vlan '3'
config bridge-vlan
option device 'br-lan'
list ports 'lan1:t'
list ports 'lan2:t'
option vlan '4'
config bridge-vlan
option device 'br-lan'
option vlan '5'
list ports 'lan1:t'
list ports 'lan2:t'
config bridge-vlan
option device 'br-lan'
option vlan '6'
config interface 'VLAN1'
option type 'bridge'
option device 'br-vlan1'
option proto 'static'
option netmask '255.255.240.0'
option ipaddr '10.165.16.1'
option ip6assign '64'
config device
option type 'bridge'
option name 'br-vlan1'
list ports 'br-lan.1'
config interface 'VLAN3'
option type 'bridge'
option device 'br-vlan3'
option proto 'static'
option netmask '255.255.240.0'
option ipaddr '10.165.32.1'
option ip6assign '64'
config device
option type 'bridge'
option name 'br-vlan3'
list ports 'br-lan.3'
config interface 'VLAN4'
option type 'bridge'
option device 'br-vlan4'
option proto 'static'
option netmask '255.255.255.0'
option ipaddr '10.165.240.1'
config device
option type 'bridge'
option name 'br-vlan4'
list ports 'br-lan.4'
config interface 'VLAN5'
option type 'bridge'
option device 'br-vlan5'
option proto 'static'
option netmask '255.255.240.0'
option ipaddr '10.165.64.1'
config device
option type 'bridge'
option name 'br-vlan5'
list ports 'br-lan.5'
