Table 52 Security - ZyXEL Communications VoIP Station Gateway P-2302R Series User Manual

P-2302R Series User's Guide

Table 52 Security

LABEL
ICMP
Respond to Ping
on
Do not respond to
requests for
unauthorized
services
Apply
Reset
169
DESCRIPTION
Internet Control Message Protocol is a message control and error-reporting
protocol between a host server and a gateway to the Internet. ICMP uses Internet
Protocol (IP) datagrams, but the messages are processed by the TCP/IP software
and directly apparent to the application user.
The Prestige will not respond to any incoming Ping requests when Disable is
selected. Select LAN to reply to incoming LAN Ping requests. Select WAN to reply
to incoming WAN Ping requests. Otherwise select LAN & WAN to reply to both
incoming LAN and WAN Ping requests.
Select this option to prevent hackers from finding the Prestige by probing for
unused ports. If you select this option, the Prestige will not respond to port
request(s) for unused ports, thus leaving the unused ports and the Prestige
unseen. By default this option is not selected and the Prestige will reply with an
ICMP Port Unreachable packet for a port probe on its unused UDP ports, and a
TCP Reset packet for a port probe on its unused TCP ports.
Click Apply to save your customized settings and exit this screen.
Click Reset to begin configuring this screen afresh.
Chapter 16 Remote Management Screens