913
•
security
: Specifies the security option.
•
stream-id
: Specifies the stream identifier option.
•
strict-source-routing
: Specifies the strict source route option.
ip-option-abnormal
: Specifies the abnormal IP option attack.
ipv6-ext-header
ext-header-value
: Specifies an IPv6 extension header by its value in the range of 0
to 255.
land
: Specifies the Land attack.
large-icmp
: Specifies the large ICMP packet attack.
large-icmpv6
: Specifies the large ICMPv6 packet attack.
ping-of-death
: Specifies the ping-of-death attack.
smurf
: Specifies the smurf attack.
snork
: Specifies the UDP snork attack.
tcp-all-flags
: Specifies the attack where the TCP packet has all flags set.
tcp-fin-only
: Specifies the attack where the TCP packet has only the FIN flag set.
tcp-invalid-flags
: Specifies the attack that uses TCP packets with invalid flags.
tcp-null-flag
: Specifies the attack where the TCP packet has no flags set.
tcp-syn-fin
: Specifies the attack where the TCP packet has both SYN and FIN flags set.
teardrop
: Specifies the teardrop attack.
tiny-fragment
: Specifies the tiny fragment attack.
traceroute
: Specifies the traceroute attack.
udp-bomb
: Specifies the UDP bomb attack.
winnuke
: Specifies the WinNuke attack.
action
: Specifies the actions against the single-packet attack. If you do not specify this keyword, the
default action of the attack level to which the single-packet attack belongs is used.
drop
: Drops packets that match the specified signature.
logging
: Enables logging for the specified single-packet attack.
none
: Takes no action.
Usage guidelines
You can use this command multiple times to enable signature detection for multiple single-packet
attack types.
When you specify a packet type by a number, if the packet type has a corresponding keyword, the
keyword is displayed in command output. If the packet type does not have a corresponding keyword,
the number is displayed.
Examples
# Enable signature detection for smurf attack and specify the prevention action as
drop
in the attack
defense policy
atk-policy-1
.
<Sysname> system-view
[Sysname] attack-defense policy atk-policy-1
[Sysname-attack-defense-policy-atk-policy-1] signature detect smurf action drop
Related commands
signature level action
Summary of Contents for FlexNetwork MSR Series
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