Public & Private IP on PPPOE LAN

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Hi, My ISP give me the IP address as following:
WAN : 21.15.64.198/30 Gateway: 21.15.64.197 and LAN : 20.15.64.80/28

ether1: WAN 21.15.64.198/30.
ether5: PPPOE for Private ip 192.168.1.1/24 & public ip 20.15.64.82~92.
ether9: web server 20.15.64.93
ether10: mysql server 20.15.64.94

how can i setup according to the network requirement ?
For PPPOE how i can assign normal user is getting private ip and some important person getting public ip ?

Hey.

1.) Setup a ip pool for from 192.168.1.1 to 192.168.1.255
2.) Setup a ppp profile for the pppoe server. Local address should be 20.15.64.81 and remote address should be to ip pool.
3.) With the ppp secrets you can then assign your special customers a public address otherwise they will get a private dynamic ip.
4.) Bridge/Switch port 9 and port 10 together and assign the address 20.15.64.81/28 to it.

If you want that your vip users can access the web and mysql server you net to enable the arp proxy an the bridge/switch port.
I think that should work.

Greetings