Configuring Host DoS

Host DoS Configuration describes how to configure Host DoS on an S- K- and 7100-Series device. Host DoS configuration commands are entered in global configuration command mode.

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Host DoS Configuration

Step Task Command(s)
1 Enable host DoS globally for this device. Threats must be specifically enabled for mitigation to occur for that threat as specified in the following step. hostdos enable
2 Enable a mitigation type, and optionally set the rate at which events will be acted upon. hostdos {mitigation-type | enable | icmp-maxlength icmp-maxlength} [rate count [per-second | per-minute | per-hour | per-day]] [nolog]
3 Optionally, set a logging event-rate for one or all DoS attack types, specifying the rate per specified time period. hostdos mitigation-type event-rate count {per-seconds | per-minutes | per-hours | per-days}
4 Optionally, disable logging for the specified DoS attack types. hostdos mitigation-type nolog
5 Optionally, specify an ICMP maximum packet size for icmpsize mitigation. hostdos icmpsize maxlength length

Managing TACACS+ describes how to display Host DoS configuration state and counters on an S- K- and 7100-Series device.

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Displaying Host DoS

Step Task Command(s)
1 Display configuration state for one or all Host DoS attack mitigation types. show hostdos [mitigation-type]
2 Display statistic counters for one or all Host DoS attack mitigation types. show hostdos [mitigation-type] [stats]