ZyXEL Communications NBG410W3G - Manual (Page 180)

Chapter 9 Firewall
NBG410W3G Series User’s Guide
180
9.9 Anti-Probing
Click SECURITY > FIREWALL > Anti-Probing to open the following screen. Configure
this screen to help keep the ZyXEL Device hidden from probing attempts. You can specify
which of the ZyXEL Device’s interfaces will respond to Ping requests and whether or not the
ZyXEL Device is to respond to probing for unused ports.
Figure 105 SECURITY > FIREWALL > Anti-Probing
Action for
Matched Packets
Use the drop-down list box to select what the firewall is to do with packets that
match this rule.
Select Drop to silently discard the packets without sending a TCP reset packet or
an ICMP destination-unreachable message to the sender.
Select Reject to deny the packets and send a TCP reset packet (for a TCP packet)
or an ICMP destination-unreachable message (for a UDP packet) to the sender.
Select Permit to allow the passage of the packets.
Note: You also need to configure NAT port forwarding (or full
featured NAT address mapping rules) if you want to allow
computers on the WAN to access devices on the LAN.
Note: You may also need to configure the remote management
settings if you want to allow a WAN computer to manage the
ZyXEL Device or restrict management from the LAN.
Apply Click Apply to save your customized settings and exit this screen.
Cancel Click Cancel to exit this screen without saving.
Table 44 SECURITY > FIREWALL > Rule Summary > Edit
LABEL DESCRIPTION