Anti-Probing; Figure 160 Security > Firewall > Anti-Probing - ZyXEL Communications ZyXEL ZyWALL 2WG User Manual

Chapter 11 Firewall
Table 71 SECURITY > FIREWALL > Rule Summary > Edit
LABEL
Action for
Matched Packets
Apply
Cancel

11.10 Anti-Probing

Click SECURITY > FIREWALL > Anti-Probing to open the following screen. Configure
this screen to help keep the ZyWALL hidden from probing attempts. You can specify which of
the ZyWALL's interfaces will respond to Ping requests and whether or not the ZyWALL is to
respond to probing for unused ports.
Figure 160 SECURITY > FIREWALL > Anti-Probing
260
DESCRIPTION
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
ZyWALL or restrict management from the LAN.
Click Apply to save your customized settings and exit this screen.
Click Cancel to exit this screen without saving.
ZyWALL 2WG User's Guide