Prestige 324 User’s Guide
Remote Management Screens
11-13
Table 11-7 Security
LABEL DESCRIPTION
Do not respond
to requests for
unauthorized
services
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.
Note that the probing packets must first traverse the Prestige's firewall mechanism
before reaching this anti-probing mechanism. Therefore if the firewall mechanism
blocks a probing packet, the Prestige reacts based on the firewall policy, which by
default, is to send a TCP reset packet for a blocked TCP packet. You can use the
command "sys firewall tcprst rst [on|off]" to change this policy. When the firewall
mechanism blocks a UDP packet, it drops the packet without sending a response
packet.
Apply
Click
Apply
to save your customized settings and exit this screen.
Reset
Click
Reset
to begin configuring this screen afresh.
Summary of Contents for P-324
Page 1: ...Prestige 324 Intelligent Broadband Sharing Gateway User s Guide Version V3 61 JF 0 April 2004 ...
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Page 87: ...Prestige 324 User s Guide WAN Screens 6 17 Figure 6 10 Dial Backup Setup ...
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Page 171: ...Prestige 324 User s Guide Maintenance 13 11 Figure 13 14 Restart ...
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Page 310: ...IX Part IX Appendices and Index This section provides some Appendices and an Index ...
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