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Groups > linux.debian.maint.ipv6 > #118
| From | Nathan Van Ymeren <nathan.vany@gmail.com> |
|---|---|
| Newsgroups | linux.debian.maint.ipv6 |
| Subject | Re: I need help configuring IPv6 |
| Date | 2022-02-24 08:50 +0100 |
| Message-ID | <DUh2W-3YAl-3@gated-at.bofh.it> (permalink) |
| References | <DUfaO-3XtF-3@gated-at.bofh.it> <DUh2V-3YAl-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
> On Feb 23, 2022, at 23:41, Kenyon Ralph <kenyon@kenyonralph.com> wrote: > >> >> On Feb 23, 2022, at 21:40, Nathan Van Ymeren <nathan.vany@gmail.com> wrote: >> >> On Wed, Feb 23, 2022 at 8:24 PM Andika Triwidada <andika@gmail.com> wrote: >>> >>> >>> >>>> On Thu, Feb 24, 2022 at 10:58 AM Nathan Van Ymeren <nathan.vany@gmail.com> wrote: >>>> >>>> >>>> The relevant portion of /etc/network/interfaces is: >>>> >>>> iface eno1 inet6 static >>>> address 2604:xxxx:xxxx:xxxx::2/64 >>>> gateway 2604:xxxx:xxxx:xxxx::1 >>>> >>>> As far as I can tell from reading the debian wiki and whatever else, >>>> it should work like this, but even ping6'ing the gateway gives "ping6: >>>> connect: Network is unreachable". I can ping the gateway on its >>>> link-local (fe80) address, but that's all I can do. >>>> >>>> Please help! >>>> >>> >>> Hi Nathan, >>> >>> I think the first important step is to ensure that the gateway pingable >>> at its 2604:xxxx:xxxx:xxxx::1 address, both from your computer and from the internet. >>> >>> Regards, >>> Andika >>> >> >> Sigh. >> >> It seems that the missing piece of the puzzle was this: You can't >> just add a default route (apparently). You have to first add the >> route to a specific interface. It's not clear to me if this is >> universally true, or just a consequence of something specific to my >> setup (the server in question has multiple NICs). >> >> The tl;dr is that it's necessary for me to do the following in order: >> >> # ip -6 route add blah:blah::1 dev eno1 >> # ip -6 route add default via blah:blah::1 >> >> where blah:blah::1/64 is the address my datacenter gave me for the v6 >> gateway router. >> >> I wish this had been more clearly laid out in the umpteen different >> wikis and tutorials I've tried to follow. > > That’s not documented because it’s not normal to have to add such a route. The kernel automatically adds that route. There is something wrong with your configuration. If you don’t obfuscate the information, we might be able to tell what’s wrong. I suppose v6 addresses aren’t really private. The server is on 2604:5800:0:1f::2 and the gateway I was given is 2604:5800:0:1f::1 # route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If localhost/128 [::] U 256 2 0 lo 2604:5800:0:1f::1/128 [::] U 1024 1 0 eno1 2604:5800:0:1f::2/128 [::] U 256 2 0 eno1 fe80::/64 [::] U 256 1 0 eno1 [::]/0 2604:5800:0:1f::1 UG 1024 21 0 eno1 localhost/128 [::] Un 0 27 0 lo 2604:5800:0:1f::2/128 [::] Un 0 10 0 eno1 fe80::/128 [::] Un 0 3 0 eno1 fe80::28c:faff:fe0e:b01c/128 [::] Un 0 7 0 eno1 ff00::/8 [::] U 256 5 0 eno1 [::]/0 [::] !n -1 1 0 lo root@mars:/etc/postfix# N
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I need help configuring IPv6 Nathan Van Ymeren <nathan.vany@gmail.com> - 2022-02-24 05:00 +0100
Re: I need help configuring IPv6 Andika Triwidada <andika@gmail.com> - 2022-02-24 05:30 +0100
Re: I need help configuring IPv6 Nathan Van Ymeren <nathan.vany@gmail.com> - 2022-02-24 05:50 +0100
Re: I need help configuring IPv6 Nathan Van Ymeren <nathan.vany@gmail.com> - 2022-02-24 06:50 +0100
Re: I need help configuring IPv6 Kenyon Ralph <kenyon@kenyonralph.com> - 2022-02-24 08:50 +0100
Re: I need help configuring IPv6 Nathan Van Ymeren <nathan.vany@gmail.com> - 2022-02-24 08:50 +0100
Re: I need help configuring IPv6 Pascal Hambourg <pascal@plouf.fr.eu.org> - 2022-02-24 22:10 +0100
Re: I need help configuring IPv6 Nathan Van Ymeren <nathan.vany@gmail.com> - 2022-02-24 22:20 +0100
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