On Sat, 27 Feb 2021 21:45:16 +0000 "Bjoern A. Zeeb" <bzeeb-li...@lists.zabbadoz.net> wrote:
> On 27 Feb 2021, at 20:34, Doug Hardie wrote: > > > > >> On Feb 27, 2021, at 11:06, Michael Gmelin <free...@grem.de> wrote: > >> > >> > >> > >>> On 27. Feb 2021, at 19:40, Doug Hardie <bc...@lafn.org> wrote: > >>> > >>>> On 27 February 2021, at 10:34, Michael Gmelin <free...@grem.de> > >>>> wrote: > >>>> > >>>> > >>>> > >>>>> On 27. Feb 2021, at 19:21, Doug Hardie <bc...@lafn.org> wrote: > >>>>> > >>>>> > >>>>>>> On 27 February 2021, at 04:37, Michael Gmelin > >>>>>>> <free...@grem.de> wrote: > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>>> On 27. Feb 2021, at 08:21, Doug Hardie <bc...@lafn.org> > >>>>>>>> wrote: > >>>>>>> > >>>>>>> From the Handbook: > >>>>>>> > >>>>>>> 32.9.2. Configuring IPv6 > >>>>>>> To configure a FreeBSD system as an IPv6 client, add these > >>>>>>> two lines to rc.conf: > >>>>>>> > >>>>>>> ifconfig_rl0_ipv6="inet6 accept_rtadv" > >>>>>>> rtsold_enable="YES" > >>>>>>> > >>>>>>> This does not work. I have in rc.conf: > >>>>>>> > >>>>>>> ifconfig_bge0_ipv6="inet6 accept_rtadv" > >>>>>>> ifconfig_ue0_ipv6="inet6 accept_rtadv" > >>>>>>> ifconfig_ue1_ipv6="inet6 accept_rtadv" > >>>>>>> > >>>>>>> On all three interfaces, ifconfig shows: > >>>>>>> nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> > >>>>>>> > >>>>>>> ACCEPT_RTADV is not listed and sure enough router > >>>>>>> advertisements are ignored. I have to manually enter: > >>>>>>> ifconfig bge0 ipv6 accept_rtadv > >>>>>>> for each interface. Then ifconfig shows: > >>>>>>> > >>>>>>> nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL> > >>>>>>> > >>>>>>> and the interface now accepts router advertisements. This is > >>>>>>> a bug, but I don't kn > >>>>>>> ow if it's in the code or the handbook. > >>>>>> > >>>>>> I just tried here on 12.2-p4 with em0 and it worked as > >>>>>> expected. I do have ipv4 configured on that interface too > >>>>>> though. > >>>>>> > >>>>>> Do you have anything else in your rc.conf (especially any > >>>>>> other ifconfig lines)? > >>>>>> > >>>>>> If not, could you try adding > >>>>>> > >>>>>> ifconfig_bge0="up" > >>>>>> etc. > >>>>> > >>>>> ### IPv6 Setup ### > >>>> > >>>> Well, here you set "ifconfig_bge0_ipv6" to one value > >>>> > >>>>> ifconfig_bge0_ipv6="inet6 accept_rtadv" > >>>> > >>>> And there you overwrite it with a new value > >>>> > >>>>> ifconfig_bge0_ipv6="inet6 fec2::210 prefixlen 64" > >>>> > >>>> Therefore, the first line has no effect at all. > >>>> > >>>> You can double check this by calling > >>>> > >>>> sysrc ifconfig_bge0_ipv6 > >>>> > >>>> Setting all things in one config setting might work (haven’t > >>>> tried it myself), like in > >>>> > >>>> ifconfig_bge0_ipv6="inet6 fec2::210 prefixlen 64 accept_rtadv" > >>>> > >>>> -m > >>>> > >>>>> > >>>>> ipv6_static_routes="lan1 lan2" > >>>>> ipv6_route_lan1="fec1:: -prefixlen 64 fec2::205" > >>>>> ipv6_route_lan2="fec2:: -prefixlen 64 fec2::205" > >>>>> > >>>>> That is all associated with IPv6. IPv4 is configured and used. > >>>>> > >>>>> -- Doug > >>> > >>> You are supposed to be able to sent multiple IP addresses on an > >>> interface and that generally works. From the handbook, I get > >>> that the "ifconfig_rl0_ipv6="inet6 accept_rtadv" line causes the > >>> default link-local addresses to be configured and should set > >>> accept_rtadv. The other lines should just add additional IP > >>> addresses. Logically, adding the accept_rtadv in each seems a > >>> bit much. Although, that is the way it worked in FreeBSD 9. > >>> That was documented in the handbook at that time. Adding > >>> additional IP addresses should not clear any of the interface > >>> flags unless included in the command. > >> > >> rc.conf is key value in general, the format is > >> > >> key=value1 > >> > >> If you write further done in the file > >> > >> key=differentvalue > >> > >> the value of key will be "differentvalue", like the first line > >> never existed. (This is unrelated to IPv6 or router > >> advertisements, just the basic principle of rc.conf). > >> > >> One way I used to configure things like that in the past was using > >> one ifconfig_<interface>_ipv6 line to set flags etc and then use > >> ifconfig_<interface>_aliases to set ip addresses. > >> > >> Something like > >> > >> ifconfig_bge0_ipv6="inet6 accept_rtadv" > >> ifconfig_bge0_aliases="inet6 fec2::210 prefixlen 64" > >> > >> (I haven’t tried this, as I’m afk and typed it on the phone, > >> which is a bit of a pita, and from the top of my head,so you would > >> have to try/verify yourself). > >> > >> -m > > > > Ahh. The handbook is needing a note about that. There should be > > something similar to what was done for IPv4 where it shows adding > > additional addresses using: > > > > Ifconfig_bge0_alias0 ... > > Ifconfig_bge0_alias1 ... > > > > That would be very helpful. Thanks for the explinations. > > > aliases are address family independent; you write =“inet > 192.0.2.17/24” or =“inet6 2001:db8::2:17/64” as you wish. Yes, typical example: ifconfig_em0_name="public" ifconfig_public="up" ifconfig_public_ipv6="up" ifconfig_public_aliases="inet 1.2.3.4/32 inet6 2b01:3e1:123:2001::2/64" -m -- Michael Gmelin _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
