Руководство По Устранению Ошибки для Cisco Cisco Packet Data Gateway (PDG)
Firewall-and-NAT Policy Configuration Mode Commands
firewall icmp-destination-unreachable-message-threshold ▀
Cisco ASR 5000 Series Command Line Interface Reference ▄
OL-22948-01
firewall icmp-destination-unreachable-message-threshold
This command configures a threshold on the number of ICMP error messages sent by the subscriber for a particular data
flow.
flow.
Important:
In StarOS 8.0, this configuration is available in the ACS Configuration Mode. In StarOS 8.1, for
Rulebase-based Stateful Firewall configuration, this configuration is available in the Rulebase Configuration Mode. In
StarOS 8.3, this configuration is available in the Rulebase Configuration Mode.
StarOS 8.3, this configuration is available in the Rulebase Configuration Mode.
Product
FW
Privilege
Security Administrator, Administrator
Syntax
Configures the default setting.
Default: No limit
Default: No limit
Removes the previous configuration.
Specifies the threshold on the number of ICMP error messages sent by the subscriber for a particular data
flow.
flow.
must be an integer from 1 through 100.
Usage
Use this command to configure a threshold on the number of ICMP error messages sent by the subscriber for
a particular data flow. After the threshold is reached, it is assumed that the server is not reacting properly to
the error messages, and further downlink traffic to the subscriber on the unwanted flow is blocked.
Some servers that run QChat ignore the ICMP error messages (Destination Port Unreachable and Host
Unreachable) from the mobiles. So the mobiles continue to receive unwanted UDP traffic from the QChat
servers, and their batteries get exhausted quickly.
a particular data flow. After the threshold is reached, it is assumed that the server is not reacting properly to
the error messages, and further downlink traffic to the subscriber on the unwanted flow is blocked.
Some servers that run QChat ignore the ICMP error messages (Destination Port Unreachable and Host
Unreachable) from the mobiles. So the mobiles continue to receive unwanted UDP traffic from the QChat
servers, and their batteries get exhausted quickly.
Example
The following command configures a threshold of 10 ICMP error messages:
The following command configures a threshold of 10 ICMP error messages: