accept_rtadv

[Michael Gmelin]

> On 27. Feb 2021, at 08:21, Doug Hardie <bc979 at 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.

Cheers,
Michael


> -- Doug
> 
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