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4
4.5
Trusted Networks
49
4.6
Serial Port Cascading
50
4.6.1
Automatically generate and upload SSH keys
50
4.6.2
Manually generate and upload SSH keys
51
4.6.3
Configure the slaves and their serial ports
52
4.6.4
Managing the slaves
52
4.7
Serial Port Redirection
53
4.7.1
Install VirtualPort client
53
4.7.2
Configure the VirtualPort client
54
4.7.3
To remove a configured port
56
4.7.4
Configure the remote serial device connection
56
4.8
Managed Devices
57
4.9
IPsec VPN
58
4.9.1
Enable the VPN gateway
58
4.10 OpenVPN
60
4.10.1 Enable the OpenVPN
61
4.10.2 Configure as Server or Client
62
4.10.3 Windows OpenVPN Client and Server set up
64
4.11
PPTP VPN
67
4.11.1 Enable the PPTP VPN server
68
4.11.2 Add a PPTP user
69
4.11.3 Set up a remote PPTP client
70
4.12
IP Passthrough
71
4.12.1 Downstream router setup
71
4.12.2 IP Passthrough pre-configuration
71
4.12.3 IP Passthrough configuration
72
4.12.4 Service intercepts
72
4.12.5 IP Passthrough status
72
4.12.6 Caveats
72
Firewall, Failover & Out-of-Band
73
5.1
OoB Dial-In Access
73
5.1.1
Configure dial-in PPP
74
5.1.2
Using SDT Connector client for dial-in
75
5.1.3
Set up Windows XP/2003/Vista/7 client for dial-in
75
5.1.4
Set up earlier Windows clients for dial-in
76
5.1.5
Set up Linux clients for dial-in
76
5.2
OoB Broadband Access
77
5.3
Broadband Ethernet Failover
77
5.4
Dial-Out Access
78
5.4.1
Always-on dial-out
78
5.4.2
Dial-Out Failover
79
5.5
Firewall & Forwarding
80
5.5.1
Configuring network forwarding and IP masquerading
80
5.5.2
Configuring client devices
82
5.5.3
Port/Protocol Forwarding
83
5.5.4
Firewall Rules
84
5.6
Internal Cellular Modem Connection
85
5.6.1
Connecting to a 4G LTE carrier network
85
5.6.2
Verifying the cellular connection
86
5.6.3
Cellular modem watchdog
87
Table of Contents