On 14/3/23 16:21, Tim Woodall wrote:
On Tue, 14 Mar 2023, Jeremy Ardley wrote:
I conclude there is no IPv6 DHCP involved but there must be something
that listens to RA announcements and generates a MAC derived address
from that.
I still need to know how to control that as there are options
relating to privacy that can do things like generate an expendable
address in a different way and later generate another and deprecate
earlier addresses.
Just add them to the ipv6 section.
I have
iface xenbr0-active inet6 auto
up echo 64
>/proc/sys/net/ipv6/conf/$IFACE/accept_ra_rt_info_max_plen
up ip token set ::128/64 dev $IFACE
bridge_ports usb0
bridge_stp off # disable Spanning Tree Protocol
bridge_waitport 0 # no delay before a port becomes available
bridge_fd 0 # no forwarding delay
I had hoped (not very hopefully) the solution wouldn't involve bashing
kernel parameters.
From previous journeys in this area systemd-networkd does a much neater
job and has huge numbers of options.
This is my worstation config
root@client:/etc/systemd/network# cat wired_lan.network
[Match]
Name=enp7s0
[Network]
DHCP=yes
Address=10.31.40.68/24
Gateway=10.31.40.1
DNS=10.31.40.4 10.31.40.5
Address=2403:5800:c101:b700:beef::44/64
IPv6PrivacyExtensions=yes
IPv6AcceptRA=yes
Domains=lan example.com
[IPv6AcceptRA]
--
Jeremy
