Google DNS settings for IPv6 on Netis DL4480V

[Robyn820]

Hi,

I have problem locating the info needed to fill the blank column under Static routing for IPv6 as in pic attached.

I only know that the destination is 2001:4860:4860::8888 but I do not know what to fill in theNext Hop and metric column.

By the way this setting is for Netis DL4480V (modem/router combo).

Thanks in advance

Robyn

[Alex Dupuy]

Hi Robyn820,

You wrote:

I have problem locating the info needed to fill the blank column under Static routing for IPv6 as in pic attached.

I only know that the destination is 2001:4860:4860::8888 but I do not know what to fill in theNext Hop and metric column.

The configuration you are trying to set is the routing for packets to the Google Public DNS IP addresses; this isn't necessary (the default route should work fine) and could actually prevent DNS queries from reaching Google. So you should remove the static routes for both IPv4 and IPv6

By the way this setting is for Netis DL4480V (modem/router combo).

There are a few separate configurations for DNS, which are shown (without much description) in the 

https://www.youtube.com/watch?v=Awf4RK5z-V4 video. There are also instructions for a different Netis model at http://setuprouter.com/router/netis/wf2419/dns.htm. There are some errors in the video (4.4.4.4 is not a DNS server address used by Google or anyone else) and both of these try to set DNS server in two different places, which is not necessary.

Generally speaking, you want to update the DNS settings on the DNS Server (or WAN, for other models) page, and leave the settings on the DHCP page with the defaults.

The DNS Server page lets you specify up to three DNS servers for IPv4 and IPv6: you can use 8.8.8.8 and 8.8.4.4. If you have working IPv6 service you can also use 2001:4860:4860::8888 and 2001:4860:4860::8844. These settings determine the DNS servers that the router uses, and with the default DHCP settings, all devices on your LAN will be instructed to send DNS queries to your router (although individual devices may be explicitly configured to use a particular DNS service). The router will answer directly if it recently got an answer (e.g. for www.google.com) or otherwise forward the query to Google Public DNS (this local caching can speed things up for popular domains if you have several devices on your network).

The DHCP page lets you specify up to three DNS servers that will be given as configuration to devices on your network (it's not clear if you can provide an IPv6 address here, or if it would work, as IPv6 typically does not use DHCP). Devices on your network, if not explicitly configured otherwise, will only use the DNS servers you specify; the router will simply forward their queries without any DNS processing, and the DNS Server (or WAN) setting on the router won't have any effect on devices other than the router itself (e.g. if it is checking for firmware updates or something like that). Using the DHCP settings may make sense if your router is very old or slow, but only using the DNS Server (or WAN) settings is generally the best choice.

Lastly, you can ignore any Dynamic DNS setting unless you have a domain that you want to associate with your home address. As I doubt that's what you're trying to do, I won't address it further (http://int-help.com/en/dynamic-dns-on-your-router-netis/ has instructions if you want to do that).