Configuration Guide
NFPP Configuration
Host-based rate-limit and attack detection
For the host-based attack detection, it can be classified into the following two
types:
source
IP
address/VID/port-based
and
source
MAC
address/VID/port-based. For each attack detection, you can configure the
rate-limit threshold and attack threshold (also called warning threshold). The
ARP packet will be dropped when the packet rate exceeds the rate-limit
threshold. When the ARP packet rate exceeds the warning threshold, it will
prompt the warning messages and send the TRAP message.
ARP-guard supports to detect the ARP scan, which is in 10s, 15s by default. If
15 or more than 15 ARP packets have been received within 10s, and the source
MAC address on link layer is fixed while the source IP address is changing, or
the source MAC address and source IP address are fixed while the destination
IP address is changing, ARP scan is detected and recorded in the syslog and
the TRAP messages are sent.
It prompts the following message if the ARP DoS attack was detected:
%NFPP_ARP_GUARD-4-DOS_DETECTED: Host<IP=N/A,MAC=0000.0000.0004,port=Gi4
/1,VLAN=1> was detected.(2009-07-01 13:00:00)
The content in brackets is the attack detection time.
The following example shows the describing information included in the sent
TRAP messages:
ARP DoS attack from host<IP=N/A,MAC=0000.0000.0004,port=Gi4/1,VLAN=1> wa
s detected.
If the isolated time is not set as 0 by the administrator, when the hardware
isolation succeeds, it prompts:
%NFPP_ARP_GUARD-4-ISOLATED:Host <IP=N/A,MAC=0000.0000.0004,port=Gi4/1,V
LAN=1> was isolated. (2009-07-01 13:00:00)
The following example shows the describing information included in the sent
TRAP messages:
Host<IP=N/A,MAC=0000.0000.0004,port=Gi4/1,VLAN=1> was isolated.
When it fails to isolate the hardware due to a lack of memory or hardware
resources, it prompts:
%NFPP_ARP_GUARD-4-ISOLATE_FAILED: Failed to isolate host <IP=N/A,MAC=0000.
0000.0004,port=Gi4/1,VLAN=1>. (2009-07-01 13:00:00)
Summary of Contents for RG-S2900G-E Series
Page 1: ...RG S2900G E Series Switch RGOS Configuration Guide Release 10 4 2b12 p1 ...
Page 91: ...Configuration Guide Configuring PoE Configuration ...
Page 133: ...Configuration Guide EEE Configuration ...
Page 319: ...Configuration Guide QinQ Configuration ...
Page 408: ......
Page 409: ...IP Routing Configuration 1 Static Route Configuration ...
Page 412: ......
Page 413: ...Multicast Configuration 1 IGMP Snooping Configuration 2 MLD Snooping Configuration ...
Page 757: ......
Page 758: ...ACL QoS Configuration 1 Access Control List Configuration 2 QoS Configuration ...
Page 801: ...Reliability Configuration 1 RLDP Configuration 2 TPP Configuration 3 SEM Configuration ...
Page 901: ...Configuration Guide ERSPAN Configuration ...
Page 902: ...Web based Configuration 1 Web based Configuration ...