I'm creating a PoC whereby I want to use PacketFence as an inline NAC.  What 
makes this deployment special is that I have to use an external captive portal.

I believe the following steps are needed and wanted to run it by the forum to 
see if I'm lost in crazy town.


*        Configure PF to always allow traffic from my LAN to the captive portal 
address (passthrough)

*        Configure PF DHCP to return a DNS of PacketFence server

*        Configure pfdns to resolve all domain name requests to the IP address 
of the external captive portal

o   This would only have to be true for non-existent or 'unregistered' 
devices.. so I guess I'm not sure how to configure this

*        Users uses the external captive portal to log in, using its own user 
database

*        Upon successful login, the external captive portal calls the 
PacketFence API functions to register the Node (api.pm)

*        As a result PacketFence updates its iptables to allow access for the 
device

Any thoughts on this?  Major stumbling blocks, functionality that I would lose? 
 Is it a gross misuse, or perhaps already supported?

On the surface it seems reasonable: use PacketFence as the NAC engine with my 
own captive portal.

Thank you much,
Henning
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