H3C S6812 Series Command Reference Manual page 994

Use undo ipv6 dhcp snooping enable to disable DHCPv6 snooping.
Syntax
ipv6 dhcp snooping enable
undo ipv6 dhcp snooping enable
Default
DHCPv6 snooping is disabled.
Views
System view
Predefined user roles
network-admin
Usage guidelines
Use the DHCPv6 snooping feature together with trusted port configuration. Trusted ports forward
responses from DHCPv6 servers and untrusted ports discard responses from DHCPv6 servers. This
mechanism ensures that DHCPv6 clients obtain IPv6 addresses or prefixes from authorized
DHCPv6 servers.
When DHCPv6 snooping is disabled, all ports on the device forward responses from DHCPv6
servers.
Examples
# Enable DHCPv6 snooping.
<Sysname> system-view
[Sysname] ipv6 dhcp snooping enable
ipv6 dhcp snooping log enable
Use ipv6 dhcp snooping log enable to enable DHCPv6 snooping logging.
Use undo ipv6 dhcp snooping log enable to disable DHCPv6 snooping logging.
Syntax
ipv6 dhcp snooping log enable
undo ipv6 dhcp snooping log enable
Default
DHCPv6 snooping logging is disabled.
Views
System view
Predefined user roles
network-admin
Usage guidelines
This command enables the DHCPv6 snooping device to generate DHCPv6 snooping logs and send
them to the information center. For information about the log destination and output rule
configuration in the information center, see Network Management and Monitoring Configuration
Guide.
As a best practice, disable this feature if the log generation affects the device performance.
76