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<blockquote data-quote="michelangelo" data-source="post: 1780095" data-attributes="member: 54225"><p>2macs, a guest network, created by an airport base station configured as a router, IS a separate network. The router is indeed split as being two separate routers, each one creating and running its own separate network, hence the base station has three interfaces, WAN, LAN1 and LAN2 (guest). Technically, these two LANs are virtual local area networks (VLANS) on the same grid of cables or wifi waves, in which the packets are separated by tagging (VLAN tag 1003, I believe, is for the guest network). Ther is no way a client on the guest network may access: any client on your main network; the admin interface of your router or of the airport base stations you may use as wifi access points. It is as secure as an oyster. I use a guest network myself and have replaced, in my basement where internet arrives, the AirPort Extreme with 3 interfaces by a PfSense firewall-router. It works the same but helped me understand what is going on there. Apple does not tell. HTH.</p></blockquote><p></p>

[QUOTE="michelangelo, post: 1780095, member: 54225"] 2macs, a guest network, created by an airport base station configured as a router, IS a separate network. The router is indeed split as being two separate routers, each one creating and running its own separate network, hence the base station has three interfaces, WAN, LAN1 and LAN2 (guest). Technically, these two LANs are virtual local area networks (VLANS) on the same grid of cables or wifi waves, in which the packets are separated by tagging (VLAN tag 1003, I believe, is for the guest network). Ther is no way a client on the guest network may access: any client on your main network; the admin interface of your router or of the airport base stations you may use as wifi access points. It is as secure as an oyster. I use a guest network myself and have replaced, in my basement where internet arrives, the AirPort Extreme with 3 interfaces by a PfSense firewall-router. It works the same but helped me understand what is going on there. Apple does not tell. HTH. [/QUOTE]

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