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Enhancing security
5
The intrusion detection function detects intrusions and attacks from the Internet and warns you about them.
It helps enhance security by conguring a lter that can block suspicious transmission sources and applications to
based on the detected information.
Detecting unauthorized accesses and
warning about them
To XXX within LAN
XXXXXXXXX
U
P
LINK
1
3
4
2
Server
LAN
PC PC
PC
InternetInternet
DOWN
LOAD
POWER
STATUS
LAN
WAN
micro8D
USB
WAN
4
3
2
1
ON
STANDBY
CONSOLE
LAN
Invalid access
database
• xxxxxxxxxx
• xxxxx
• xxxxxxxx
• xxxxxx
This function compares packets passing through
the router with the database of intrusion/attack
patters in the router, and records/discards a packet if
unauthorized access is suspected.
Note
• Note that new unauthorized access methods and
intrusion/attack patterns are constantly being discovered
and thus no completely infallible prevention method
exists. We would like you to understand that not all of
unauthorized accesses can be detected by this function.
• As this function detects accesses that are similar to
intrusions/attack patterns, some unauthorized accesses
may not be detected due to timing or a range of other
reasons. On the other hand, a detected pattern does
not automatically mean that a serious unauthorized
access has occurred. Please understand this and use this
function only as a guide for your security management.
• This function can apply to each interface and I/O.
• Using this function decreases the speed of accessing the
Internet, etc.
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