ZyXEL p-2302hw-p1 Manual Do Utilizador

P-2302HW/HWL-P1 Series User’s Guide

Chapter 18 Remote MGMT

227

Figure 124   Management > Remote MGMT > Security

Each field is described in the following table.

Table 101   Management > Remote MGMT > Security

Respond to Ping 
on

Select the interface(s) on which the ZyXEL Device should respond to incoming 
ping requests.

Disable - the ZyXEL Device does not respond to any ping requests.

LAN - the ZyXEL Device only responds to ping requests received from the LAN.

WAN - the ZyXEL Device only responds to ping requests received from the WAN.

LAN & WAN - the ZyXEL Device responds to ping requests received from the LAN 
or the WAN.

Do not respond to 
requests for 
unauthorized 
services

Select this to prevent outsiders from discovering your ZyXEL Device by sending 
requests to unsupported port numbers. If an outside user attempts to probe an 
unsupported port on your ZyXEL Device, an ICMP response packet is 
automatically returned. This allows the outside user to know the ZyXEL Device 
exists. Your ZyXEL Device supports anti-probing, which prevents the ICMP 
response packet from being sent. This keeps outsiders from discovering your 
ZyXEL Device when unsupported ports are probed.

If you clear this, your ZyXEL Device replies with an ICMP Port Unreachable packet 
for a port probe on unused UDP ports and with a TCP Reset packet for a port 
probe on unused TCP ports. 

Apply

Click this to save your changes and to apply them to the ZyXEL Device.

Cancel

Click this to set every field in this screen to its last-saved value.