I am working on a RRAS setup with dual NIC cards (External and Internal) separated by edge and perimeter firewalls. Appreciate if you could help me with clarifying below queries pertaining to the network and firewall requirements, as I am unclear.
Internal NIC - As there is NO default default gateway set on this adapter. Do I need to set default static route for the internal routing to work?
From which NIC interface (ext OR int) of VPN server should I open required udp ports for radius communication?
Also to allow intranet application access to the remote users. What should be my IP source? Again should this be ext interface IP OR the internal OR the internal interface entire IP range etc..?