Based on NAT and routing rules, network administrators can create additional rules for NAT, DNAT and routing. UserGate supports NAT/DNAT for complex protocols which can use dynamic ports. The system is compatible with FTP, PPTP, SIP and H323. 7.2.1. NAT rules 7.2.2. DNAT rules 7.2.3. Port forwarding rules 7.2.4. Policy-based routing 7.2.5. Network mapping ‹ 7.1. Firewall up 7.2.1. NAT rules ›