I can't access the internal network from L2TP over IPsec VPN

Question

Hello all, 
 I have been banging my head against this one all day. 
 
 I have L2TP over IPsec setup using the default VPN pool. 
 I have a Firewall rule set: (Source) VPN pool --------(Service) Any ---------(Destinations) Internal (Network) 
 The rule is enabled yet None of my clients can see anything on the internal network. 
 
 I have tried setting up NAT Masq. rules with no effect. 
 
 What am I missing here? 
 
 SG230, 
 Firmware version: 9.414-2

Shaun Raven · Answer

The thing that jumps out at me is that the wrong pool is being used in the rules - it should be VPN Pool (L2TP). I would also put the Pool network and the internal network on BOTH sides of the firewall rule so traffic flows both ways.