tainy hmod-v3-io, tainy hmod-l3-io - Dr. Neuhaus ...

Small lexicon of routers
Additional Internal
Routes
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.
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
TAINY internal address:
192.168.11.1
(E-)GPRS
Page 106 of 111 TAINY xMOD
TAINY
Switch
Router
Switch
Router
Switch
TAINY external address:
(assigned by provider)
e.g. 80.81.192.37
APN
A1 A2 A3 A4 A5
B1 B2 B3 B4
C1 C2 C3 C4
Network A
Network address: 192.168.11.0 / 24
Netmask: 255.255.255.0
Network B
Network address: 192.168.15.0 / 24
Netmask: 255.255.255.0
Network C
Network address: 192.168.27.0 / 24
Netmask: 255.255.255.0
Network A is connected to the TAINY HMOD-V3-IO 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 TAINY HMOD-V3-IO, 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.