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7.6.3 Port Forwarding ............................................................................................................................... 69

7.6.4 Traffic Rules...................................................................................................................................... 72

7.6.5 Custom Rules ................................................................................................................................... 76

7.6.6 DDOS Prevention ............................................................................................................................. 76

7.6.7 Port Scan Prevention ....................................................................................................................... 79

7.7 Routing ..................................................................................................................................................... 79

7.7.1 Static Routes .................................................................................................................................... 79

7.7.2 Dynamic Routes ............................................................................................................................... 80

7.8 Load Balancing ......................................................................................................................................... 84

8 Remote monitoring and administration ...................................................................................................... 84

9 Services ........................................................................................................................................................ 86

9.1 VRRP ......................................................................................................................................................... 86

9.1.1 VRRP LAN Configuration Settings .................................................................................................... 86

9.1.2 Check Internet connection ............................................................................................................... 87

9.2 TR-069 ...................................................................................................................................................... 87

9.2.1 TR-069 Parameters Configuration ................................................................................................... 87

9.3 Web filter ................................................................................................................................................. 88

9.3.1 Site blocking ..................................................................................................................................... 88

9.3.2 Proxy Based Content Blocker ........................................................................................................... 88

9.4 NTP ........................................................................................................................................................... 89

9.5 VPN .......................................................................................................................................................... 90

9.5.1 OpenVPN .......................................................................................................................................... 90

9.5.2 IPSec ................................................................................................................................................. 93

9.5.3 GRE Tunnel ....................................................................................................................................... 96

9.5.4 PPTP ................................................................................................................................................. 98

9.5.5 L2TP .................................................................................................................................................. 99

9.6 Dynamic DNS ............................................................................................................................................ 99

9.7 SMS Utilities ........................................................................................................................................... 101

9.7.1 SMS Utilities ................................................................................................................................... 101

9.7.2 Call Utilities .................................................................................................................................... 107

9.7.3 User Groups ................................................................................................................................... 108

9.7.4 SMS Management .......................................................................................................................... 109

9.7.5 Remote Configuration .................................................................................................................... 110

9.7.6 Statistics ......................................................................................................................................... 113

9.8 SNMP ..................................................................................................................................................... 113