Brocade Network OS Command Reference v4.1.0 - Manual (Page 392)

354 Network OS Command Reference
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ipv6 icmp rate-limit
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ipv6 icmp rate-limit
Limits the rate at which ICMP messages are sent on a IPv6 network.
Synopsis ipv6 icmp rate-limit milliseconds
no ipv6 icmp rate-limit
Operand milliseconds Number of milliseconds between packets. The range is from from 1 through
4294967295.
Defaults The default value is 1000 milliseconds.
Command Modes Interface configuration mode
Description This command limits the rate at which ICMP messages are sent on a IPv6 network. To protect
against TCP SYN attacks, you can configure the Brocade device to drop TCP SYN packets when
excessive numbers are encountered. You can set threshold values for TCP SYN packets that are
targeted at the router itself or passing through an interface, and drop them when the thresholds
are exceeded.
This command supports Joint Interoperability Test Command (JITC).
Usage Guidelines The configuration is persistent across switch reload.
Once enabled, all outbound ICMP message types are rate limited.
Examples None
See Also ip icmp rate-limit