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.
/bz
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