Chapter 14 Configuring Attack Response Controller for Blocking and Rate Limiting

Understanding Service Policies for Rate Limiting

Table 14-1

Rate Limiting Signatures (continued)

 

 

 

 

 

 

 

 

 

 

 

 

Destination IP

 

Signature ID

 

Signature Name

Protocol

Address Allowed

Data

 

 

 

 

 

 

4002

 

UDP Flood Host

UDP

Yes

none

 

 

 

 

 

 

6901

 

Net Flood ICMP Reply

ICMP

No

echo-reply

 

 

 

 

 

 

6902

 

Net Flood ICMP Request

ICMP

No

echo-request

 

 

 

 

 

 

6903

 

Net Flood ICMP Any

ICMP

No

None

 

 

 

 

 

 

6910

 

Net Flood UDP

UDP

No

None

 

 

 

 

 

 

6920

 

Net Flood TCP

TCP

No

None

 

 

 

 

 

 

3050

 

TCP HalfOpenSyn

TCP

No

halfOpenSyn

 

 

 

 

 

 

Tip To check the status of the ARC, type show statistics network-accessat the sensor#. The output shows the devices you are managing, any active blocks and rate limits, and the status of all devices..

For More Information

For the procedure for configuring rate limiting on a router, see Configuring Blocking and Rate Limiting Devices, page 14-21.

For the procedure for configuring a sensor to be a master blocking sensor, see Configuring the Sensor to be a Master Blocking Sensor, page 14-28.

Understanding Service Policies for Rate Limiting

You must not apply a service policy to an interface/direction that is configured for rate limiting. If you do so, the rate limit action will fail. Before configuring rate limits, confirm that there is no service policy on the interface/direction, and remove it if one exists. The ARC does not remove the existing rate limit unless it is one that the ARC had previously added.

Rate limits use ACLs, but not in the same way as blocks. Rate limits use acls and class-mapentries to identify traffic, and policy-mapand service-policyentries to police the traffic.

Before Configuring ARC

Caution Two sensors cannot control blocking or rate limiting on the same device. If this situation is needed, configure one sensor as the master blocking sensor to manage the devices and the other sensors can forward their requests to the master blocking sensor.

Note When you add a master blocking sensor, you reduce the number of blocking devices per sensor. For example, if you want to block on 10 security appliances and 10 routers with one blocking interface/direction each, you can assign 10 to the sensor and assign the other 10 to a master blocking sensor.

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

 

 

 

 

 

OL-29168-01

 

 

14-5

 

 

 

 

 

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Cisco Systems IPS4510K9 manual Understanding Service Policies for Rate Limiting, Before Configuring ARC, Udp, Tcp, 14-5

IPS4510K9 specifications

Cisco Systems has long been a leading player in network security, and its IPS (Intrusion Prevention System) series is a testament to its commitment to safeguarding digital environments. Among its notable offerings are the IPS4510K9 and IPS4520K9 models, both designed to provide advanced threat protection for mid-sized to large enterprise networks.

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