H3C MSR 2600 Series, Configuration Manual

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Tasks at a glance
(Optional.) Enabling DHCPv6-REQUEST check
Configuring basic DHCPv6 snooping
To make sure DHCPv6 clients can obtain valid IPv6 addresses, specify the ports connected to authorized
DHCPv6 servers as trusted ports. The trusted ports and the ports connected to DHCPv6 clients must be in
the same VLAN.
To configure basic DHCPv6 snooping:
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enable DHCPv6 snooping.
ipv6 dhcp snooping enable
By default, DHCPv6 snooping is
disabled.
3. Enter interface view.
interface interface-type
interface-number
This interface must connect to the
DHCPv6 server.
4. Specify the port as a trusted
port.
ipv6 dhcp snooping trust
By default, all ports are untrusted
ports after DHCPv6 snooping is
enabled.
5. Return to system view.
quit N/A
6. Enter interface view.
interface interface-type
interface-number
This interface must connect to the
DHCPv6 client.
7. (Optional.) Enable recording
of client information in
DHCPv6 snooping entries.
ipv6 dhcp snooping binding record
By default, DHCPv6 snooping does
not record client information.
Configuring Option 18 and Option 37
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter Layer 2 Ethernet
interface view.
interface interface-type
interface-number
N/A
3. Enable support for Option 18. ipv6 dhcp snooping option
interface-id enable
By default, Option 18 is not
supported.
4. (Optional.) Specify the
content as the interface ID.
ipv6 dhcp snooping option
interface-id
[ vlan vlan-id ] string
interface-id
By default, the DHCPv6 snooping
device uses its DUID as the content
for Option 18.