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

6.2 Port Forwarding
Security > Port
Forwarding
Security functions
Function If a rule has been created for port forwarding, then data packets received at
a defined IP port of the TAINY xMOD from the external network will be
forwarded. The incoming data packets are then forwarded to a specified IP
address and port number in the local network. The port forwarding can be
configured for TCP or UDP.
In port forwarding the following occurs: The header of incoming data packets
from the external network that are addressed to the external IP address of
the TAINY xMOD and to a specific port are adapted so that they are
forwarded to the internal network to a specific computer and to a specific
port of that computer.
This means that the IP address and port number in the header of incoming
data packets are modified.
This process is also called Destination NAT or Port Forwarding.
Note
In order for incoming data packets to be forwarded to the defined IP address
in the local network, a corresponding incoming firewall rule must be set up
for this IP address in the packet filter. See Chapter 6.1.
New Adds a new forwarding rule that you can then fill out.
Delete Removes forwarding rules that have been created.
Protocol Specify here the protocol (TCP or UDP) to which the rule
should refer.
Destination
port
Forward to
IP
Forward to
port
Specify here the port number (e.g. 80) at which the data
packets which are to be forwarded arrive from the external
network.
Specify here the IP address in the local network to which the
incoming data packets should be forwarded.
Specify here the port number (e.g.) for the IP address in the
local network to which the incoming data packets should be
forwarded.
Log For each port forwarding rule you can define whether the event
should be
� logged when the rule takes effect - set Log to Yes
� or not - set Log to No (factory setting)
The log is kept in the firewall log, see Chapter 6.4.
Factory setting The factory settings for the TAINY xMOD are as follows:
Forwarding Rules -
Protocol TCP
Destination port 80
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