ZyXEL Communications ZyWALL 110 Handbook page 494

3. If the Value field in the WAN1's DHCPv6 Request Options table displays n/a,
contact your ISP for further support.
4. In Windows, some IPv6 related tunnels may be enabled by default such as Teredo
and 6to4 tunnels. It may cause your computer to handle IPv6 packets in an
unexpected way. It is recommended to disable those tunnels on your computer.
Assign the DNS address to the client
If you want to assign the DNS server address instead of ISP's , then
1.
please create the DNS server object.
Select DHCPv6 Lease and DNS server as lease type. For example set
the Google DNS IPv6 address 2001:4860:4860::8888
2. Select the drop-down list DHCPv6 as server type, add the DNS server object in
DHCPv6 lease options and enable Router Advertisement.
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