Hi, I'm on same setup myself and confused as to how to vlan tag, what should be the CIDR. Here is what I have done till now
1. Changed root passwords
2. Went to system>config>wizard then entered
DNS servers I was given. DNS(unbound) has resolver enabled.
3. In the same wizard entered wan networktype as static,
mac as my
router mac (I don't think its needed but I'll still do ig),
IP/21(xxx.xxx.131.xxx/21) and gateway(xxx.xxx.133.1), under default policies, block rfc1918 private networks and block bogon networks enabled by default
4. On next page(LAN), all default, configure DHCP server enabled.
5. Saved and applied
6. Interfaces>devices>vlan added a vlan with parent as the wan interface, vlan tag as 100 and priority as 0 out of 0-7(not sure what to put so set as default)
7. Setup DHCP by disabling isc and using dnsmasq.
What else do I need to do?