Brocade Network OS Command Reference v4.1.0 - Manual (Page 443)

Network OS Command Reference 405
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ipv6 unreachable
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ipv6 unreachable
Prohibits routers from forwarding an Internet Control Message Protocol version 6 (ICMPv6)
Destination Unreachable Code 3 (port unreachable) message on a point-to-point link back onto
the ingress port.
Synopsis ipv6 unreachable
no ipv6 unreachable
Operands None
Defaults This command is enabled by default.
Command Modes Global configuration mode
Description This command prohibits routers from forwarding an ICMPv6 Destination Unreachable Code 3 (port
unreachable) message on point-to-point links back onto the ingress port.
By default, ICMPv6 Destination Unreachable Code 3 messages are sent for a discarded IP packet.
You can disable the sending of these messages.
Usage Guidelines Use the no ipv6 unreachable command to disable the sending of these messages.
This is an interface-specific configuration The configuration is persistent across a switch reload.
Examples None
See Also ip unreachable