Licensing Requirements and Limitations for IPv6

Other network elements are not required.

IPv6 is a basic feature of a switch and is not under license control.

All models of S2720, S5700, and S6700 series switches support IPv6.

For details about software mappings, visit Hardware Query Tool and search for the desired product model.

IPv6 addresses can be assigned to the management Ethernet port in V200R019C00 and later versions.
In V200R011C00 and later versions, the VLANIF interface of a super-VLAN on a switch supports the IPv6 function.
The switch can set the CPCAR values for the packets of each protocol. The CPCAR values of some protocol packets need to be adjusted based on the actual service scale and user network.
If the default CPCAR value of ND packets cannot meet the packet exchange requirements when too many IPv6 user hosts are connected to the switch, a large number of ND packets may be lost and the switch fails to learn ND neighbor entries. Therefore, the CPCAR value must be adjusted. To prevent the CPU from running with a high load, the CPCAR value needs to be increased to a proper value.
If the CPCAR values are adjusted improperly, network services are affected. To adjust the CPCAR values of ND packets, contact technical support personnel.
In V200R013C02 and later versions, after 1 to 1 VLAN mapping is configured, the VLANIF interface corresponding to the mapped VLAN supports dynamic ND entry learning.
A device can only forward ICMPv6 packets with the Option field at Layer 3. Other IPv6 packets with the Option field will be discarded.