What the title says.

I want to know whether I can assume all internal IP addresses supplied by a regular home router will be IPv4 or might they be IPv6 as well?

  • There are many different models of home routers. Some do support dual stack IPv4 and IPv6 including (but probably not limited to) any home router running openwrt or ddwrt. – Mark Jan 11 at 20:49
  • @Mark Just to verify - you mean internal IPv6 addresses? – ispiro Jan 11 at 20:51
  • This is very broad--there are so many different models of routers out there. "regular home router" is not specific, could be anything from the free box your ISP gives you to a Turris Omnia or some of the Unifi prosumer home router kit (both of which support ipv6 out of the box and can provide ipv6 addresses to clients). – Mark Jan 11 at 20:53
  • yes, my clients on my network get an IPv6 from the router if they ask for one (running openwrt on a "home router") openwrt.org/docs/guide-user/network/ipv6/start – Mark Jan 11 at 20:55
  • @Mark I wasn't really asking about prosumer, more about the basic types non-techies would have in their homes, however, from the tone of your comments I see that I shouldn't assume it'll always be IPv4, just like the answer below. Thanks. – ispiro Jan 11 at 20:56

It may depend upon the router, but a number of routers I have had allow a choice of IPv4 or IPv6 internally and externally.

I suggest you access the GUI setup of your router and check the WAN and LAN detail settings.

You cannot make an assumption - you must check your own situation.

  • Thanks. (+1) Can't accept yet (SuperUser system, not me). – ispiro Jan 11 at 20:58
  • You should be able to accept. I am not entirely certain but I think you can. – John Jan 11 at 21:01
  • There's a minimum waiting time to accept. When I wrote the comment above I tried accepting and was notified I have to wait another 4 minutes. Anyway, now I can, and have. Thanks again. – ispiro Jan 11 at 21:04

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.