ETHERLINE
®
ACCESS NF04T | Version 1 | 04/16/20
50
14
FAQ
Are broadcasts or multicasts allowed through the ETHERLINE® ACCESS NF04T?
ETHERLINE
®
ACCESS NF04T is a TCP/IP NAT or Bridge device. It works on layers 3 and 4. Broadcasts and
multicasts are blocked at ETHERLINE
®
ACCESS NF04T in both directions (LAN
à
WAN and WAN
à
LAN). The
blocking of broadcasts thus also reduces the bus load in both networks and increases the real time capability of the
machine network.
Can I send frames via the ETHERLINE® ACCESS NF04T PROFINET RT?
No, PROFINET RT frames are blocked by the ETHERLINE
®
ACCESS NF04T.
What must I take into consideration when I wish to work with a CPU in the LAN via the ETHERLINE
®
ACCESS NF04T with the Simatic Manager or the TIA Portal (WAN)?
In the NAT operating mode, the LAN address of the ETHERLINE
®
ACCESS NF04T must be entered in the CPU as a
router in order that the answers of the CPU find their way back to the PC in the WAN. You can find more information
on this application case in chapter 10.
Can the ETHERLINE
®
ACCESS NF04T save multiple configurations?
No, the ETHERLINE
®
ACCESS NF04T always only has one current configuration. However, it is possible to deactivate
or activate individual packet filter rules or NAT entries via the lamp symbol. It is also possible to export, edit and
import a ETHERLINE
®
ACCESS NF04T configuration again.
How can I determine whether I have the latest firmware and where do I find the most recent firmware?
The active firmware of the ETHERLINE
®
ACCESS NF04T is
shown in the “Overview” website of the ETHERLINE
®
ACCESS NF04T.
The most recent firmware can be downloaded at the
website www.lappkabel.com
The installation of the firmware is described in chapter 12.
