HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Services Command Referen - Page 203
ipv6 unreachables enable, reset ipv6 neighbors
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ipv6 unreachables enable Use ipv6 unreachables enable to enable sending ICMPv6 destination unreachable packets. Use undo ipv6 unreachables to disable sending ICMPv6 destination unreachable packets. Syntax ipv6 unreachables enable undo ipv6 unreachables enable Default Sending ICMPv6 destination unreachable packets is disabled. Views System view Predefined user roles network-admin Usage guidelines If the device fails to forward a received IPv6 packet because of a destination unreachable error, it drops the packet and sends a corresponding ICMPv6 Destination Unreachable error message to the source. If the device is generating ICMPv6 destination unreachable messages abnormally, disable sending ICMPv6 destination unreachable packets to prevent attack risks. Examples # Enable sending ICMPv6 destination unreachable packets. system-view [Sysname] ipv6 unreachables enable reset ipv6 neighbors Use reset ipv6 neighbors to clear IPv6 neighbor information. Syntax reset ipv6 neighbors { all | dynamic | interface interface-type interface-number | slot slot-number | static } Views User view Predefined user roles network-admin Parameters all: Clears static and dynamic neighbor information for all interfaces. dynamic: Clears dynamic neighbor information for all interfaces. interface interface-type interface-number: Clears dynamic neighbor information for the interface specified by its type and number. 195