Chapter 16 Remote Management
P-660HN-TxA User’s Guide
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16.7 The ICMP Screen
To change your ZyXEL Device’s security settings, click Advanced > Remote
MGMT > ICMP. The screen appears as shown.
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.
Note: If you want your device to respond to pings and requests for unauthorized
services, you may also need to configure the firewall anti probing settings to
match.
Figure 95
Advanced > Remote Management > ICMP
The following table describes the labels in this screen.
Table 68
Advanced > Remote Management > ICMP
LABEL
DESCRIPTION
ICMP
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.
Respond to
Ping on
The ZyXEL Device 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.
Apply
Click this to save your changes.
Cancel
Click this to restore your previously saved settings.
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Страница 8: ...Safety Warnings P 660HN TxA User s Guide 8...
Страница 10: ...Contents Overview P 660HN TxA User s Guide 10...
Страница 18: ...Table of Contents P 660HN TxA User s Guide 18...
Страница 19: ...19 PART I User s Guide...
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Страница 28: ...Chapter 1 Introduction P 660HN TxA User s Guide 28...
Страница 57: ...57 PART II Technical Reference...
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Страница 102: ...Chapter 7 LAN Setup P 660HN TxA User s Guide 102...
Страница 150: ...Chapter 9 Network Address Translation NAT P 660HN TxA User s Guide 150...
Страница 154: ...Chapter 10 Firewall P 660HN TxA User s Guide 154...
Страница 164: ...Chapter 12 Static Route P 660HN TxA User s Guide 164...
Страница 190: ...Chapter 16 Remote Management P 660HN TxA User s Guide 190...
Страница 206: ...Chapter 18 CWMP P 660HN TxA User s Guide 206...
Страница 228: ...Chapter 21 Tools P 660HN TxA User s Guide 228...
Страница 238: ...Chapter 23 Troubleshooting P 660HN TxA User s Guide 238...
Страница 270: ...Appendix A Setting up Your Computer s IP Address P 660HN TxA User s Guide 270...
Страница 280: ...Appendix B IP Addresses and Subnetting P 660HN TxA User s Guide 280...
Страница 290: ...Appendix C Pop up Windows JavaScripts and Java Permissions P 660HN TxA User s Guide 290...
Страница 322: ...Index P 660HN TxA User s Guide 322...
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