Network configuration questions

Anyone know about VPN?

I want to set up VPN on my router.

  1. Will it cover guest network? If yes can I disable this for guest?
  2. Can I use separate VPN for guest network?
  3. What if I will set up VPN on router and somebody will turn on VPN on phone too?

Yes. You can control in vpn policies using vlan based policy.

No. Only one vpn works on the router.

It will be double vpn. It may cause problems, generally because of MTU.
The MTU on the phone should use lower MTU. Otherwise data may not go through.