Connect WAN and LAN via a single cable solution.
Connect WAN and LAN via a single cable solution.
Sure, it’s doable. You can connect your WAN and LAN onto the same Ethernet cable by routing them through a switch. The WAN would go from your device to the switch, then the switch forwards it to the router on the same cable, which in turn sends it to the LAN devices. Make sure the cabling and ports match for proper communication.
You should connect the ISP's router to a switch, then link that switch to another switch, and finally connect the last switch to the router. This setup allows proper routing of your internet connection.
Using VLANs is possible. The router doesn’t need to handle them directly; switches can manage it, but every switch must support VLANs. The modem port connects to an untagged link for your WAN VLAN, the router’s WAN port matches that, and the LAN port connects to the same VLAN. Wired clients use untagged access for their respective VLANs, while ports linking switches carry tagged data for all VLANs.
Thanks for the update, I wasn't familiar with VLANs but everything is now set up without problems so far.