Guntermann & Drunck DevCon-Center Installation - Manual (Page 11)

Using the Reset button
G&D DevCon-Center · 8
Temporarily deactivating the netfilter rules
In the default status of the DevCon-Center appliance, all network computers have
access to the extender’s IP address (open system access).
The web application enables you to create netfilter rules to control the access to the
appliance. As soon as a netfilter rule has been created, the open access to the system is
deactivated and all incoming data packets are compared to the netfilter rules.
If the currently adjusted netfilter rules prevent the access to the Config Panel web
application, they can be can temporarily deactivated in order to be edited.
How to temporarily deactivate the netfilter rules:
1. Press and hold the Reset button on the front panel of the appliance for 5 seconds.
2. Use the Config Panel web application to edit the netfilter rules that are stored in
the appliance and, afterwards, save these rules.
IMPORTANT: Now, the open system access is activated.
IMPORTANT: The former settings are reactivated if no new netfilter rules are
created within 15 minutes.