Digi X2 - Manual (Page 96)

C o n f i g u r a t i o n t h r o u g h t h e w e b i n t e r f a c e
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How IP pass-through affects network access to Digi devices
When IP pass-through is enabled, the Digi device effectively disables all router and IP
service functionality. Services that are disabled are:
NAT
Port Forwarding
VPN
DDNS updates
Socket Tunnel
Network Services configuration.
The Digi device is effectively transparent to all IP activity and network access by other
devices, with these exceptions:
It can be accessed via the serial port for configuration using the command line
interface.
It accepts TCP/IP connections for purposes of configuration by means of a
“pinhole” on the mobile interface.
It can be accessed by other devices on the local Ethernet segment via the
default IP address of 192.168.1.1.
Using pinholes to manage the Digi device
IP pass-through uses a concept called pinholes. The Digi device can be configured to
listen on specific TCP ports, and terminate those connections at the Digi device for
purposes of managing it. Those ports are called pinholes, and they are not passed on to the
device connected to the Ethernet port of the Digi device. Network services and ports that
can be configured as pinholes include (see "Network services settings" on page 82 to
configure these settings):
Telnet: for accessing the device through a Telnet login and the command-line.
SSH: for accessing to the device through a Secure Shell (SSH) login and the
command-line.
HTTP: for accessing the device through HTTP and the web interface.
HTTPS: for accessing to the device through HTTPS and the web interface
SNMP: for monitoring and managing the device through SNMP.