453
[Device] interface ten-gigabitethernet 1/0/1
[Device-Ten-GigabitEthernet1/0/1] ipv6 verify source ip-address mac-address
# Enable recording of client information in DHCPv6 snooping entries on Ten-GigabitEthernet
1/0/1.
[Device-Ten-GigabitEthernet1/0/1] ipv6 dhcp snooping binding record
[Device-Ten-GigabitEthernet1/0/1] quit
Verifying the configuration
# Verify that a dynamic IPv6SG binding is generated based on a DHCPv6 snooping entry.
[Device] display ipv6 source binding dhcpv6-snooping
Total entries found: 1
IPv6 Address MAC Address Interface VLAN Type
2001::1 040a-0000-0001 XGE1/0/1 1 DHCPv6 snooping
Dynamic IPv6SG using DHCPv6 relay agent configuration
example
Network requirements
As shown in Figure 127, DHCPv6 relay agent is enabled on the switch. The clients obtain IPv6
addresses from the DHCPv6 server through the DHCPv6 relay agent.
Enable dynamic IPv6SG on VLAN-interface 3 to filter incoming packets by using the IPv6SG
bindings generated based on DHCPv6 relay entries.
Figure 127 Network diagram
Configuration procedure
1. Configure the DHCPv6 relay agent:
# Create VLAN 2 and VLAN 3, assign interfaces to the VLANs, and specify IP addresses for
VLAN-interface 2 and VLAN-interface 3. (Details not shown.)
# Enable the DHCPv6 relay agent on VLAN-interface 3.
[Switch] interface vlan-interface 3
[Switch-Vlan-interface3] ipv6 dhcp select relay
# Enable recording of DHCPv6 relay entries on the interface.
[Switch-Vlan-interface3] ipv6 dhcp relay client-information record
# Specify the DHCPv6 server address 2::2 on the relay agent.
[Switch-Vlan-interface3] ipv6 dhcp relay server-address 2::2
[Switch-Vlan-interface3] quit
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