5
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 RS232/RS485 ............................................................................................................................................ 90
9.5.1 RS232 ............................................................................................................................................... 91
9.5.2 RS485 ............................................................................................................................................... 93
9.5.3 Modes of different serial types in RS232 and RS485 ....................................................................... 96
9.6 VPN ........................................................................................................................................................ 100
9.6.1 OpenVPN ........................................................................................................................................ 100
9.6.2 IPSec ............................................................................................................................................... 103
9.6.3 GRE Tunnel ..................................................................................................................................... 106
9.6.4 PPTP ............................................................................................................................................... 108
9.6.5 L2TP ................................................................................................................................................ 109
9.7 Dynamic DNS .......................................................................................................................................... 109
9.8 SMS Utilities ........................................................................................................................................... 111
9.8.1 SMS Utilities ................................................................................................................................... 111
9.8.2 Call Utilities .................................................................................................................................... 117
9.8.3 User Groups ................................................................................................................................... 118
9.8.4 SMS Management .......................................................................................................................... 119
9.8.5 Remote Configuration .................................................................................................................... 120
9.8.6 Statistics ......................................................................................................................................... 124
9.9 SNMP ..................................................................................................................................................... 124
9.9.1 SNMP Settings ................................................................................................................................ 124
