Guest and corporate network through 1 router?

Question

Computer networks

There is TP-Link TL-WR841N / ND on OpenWrt, through which clients connect to the corporate network (someone by wire, someone via wi-fi), all settings are picked up from the dhcp server from the outside. that is, just a bridge between WAN and lan.
It is necessary to set up a guest Wi-fi network isolated from the local one on this router, so that not every guest breaks into the Internet gateway, but only one router interface. here is such a goof.

Answer 1

The magic word vlan

Answer 2

OpenWRT documentation on guest network
wiki.openwrt.org/doc/recipes/guest-wlan
Description of guest wifi isolated from locale on access point
http://http://jasonschaefer.com/openwrt-access-poi...