Siemens SINAUT MD741-1 System Manual page 126

Glossary
Additional Internal
Routes
126
The following sketch shows how the IP addresses could be distributed
in a local network with subnetworks, what network addresses result
from this, and what the specification for an additional internal route
could look like.
MD741-1 internal address:
192.168.11.1
Router
IP external: 192.168.11.2
IP internal: 192.168.15.254
Netmask: 255.255.255.0
Router
IP external: 192.168.15.1
IP internal: 192.168.27.254
Netmask: 255.255.255.0
Additional
internal routes
Network A is connected to the SINAUT MD741-1 and via it to a remote
network. Additional internal routes show the path to additional
networks (networks B, C), which are connected to each other via
gateways (routers). For the SINAUT MD741-1, in the example shown
networks B and C can both be reached via gateway 192.168.11.2 and
network address 192.168.11.0/24.
MD741-1 external address:
(assigned by provider)
e.g. 80.81.192.37
MD741-1
(E-)GPRS
Switch
A2
A1 A3
Router
Switch
Network B
Network address: 192.168.15.0 / 24
Netmask: 255.255.255.0
B2
B1 B3
Router
Switch
C2
C3
C1
APN
Network A
Network address: 192.168.11.0 / 24
Netmask: 255.255.255.0
A5
A4
B4
Network C
Network address: 192.168.27.0 / 24
Netmask: 255.255.255.0
C4
SINAUT MD741-1
C79000- G8976-C212