On 03/11/2022 8:30 pm, Hajimu UMEMOTO wrote:
Hi,

On Sat, 12 Mar 2022 19:06:56 +0900, Larry Rosenman wrote:

that's not exactly what I want. I'll be getting a prefix delegated to my UniFi
USG, and I want the FreeBSD host to be able to assign
addresses in that Prefix (not SLAAC, but static host part).

I don't know that what I want is possible, but figured I'd ask.

I.E. the router assigns 2001:aa:bb:cc::/64 as the prefix, an I want the host to
wind up at 2001:aa:bb:cc::53:1
what do I need to do to make that happen?

Something like this should work for you:

  ifconfig_eth0_ipv6="inet6 fe80::53:1 -auto_linklocal accept_rtadv"

--
Hajimu UMEMOTO
u...@mahoroba.org  u...@freebsd.org
http://www.mahoroba.org/~ume/

Nope, didn't work on my home net:

❯ ifconfig bce0
bce0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        
options=c01bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,VLAN_HWTSO,LINKSTATE>
        ether a4:ba:db:29:66:95
        inet 192.168.200.4 netmask 0xfffffc00 broadcast 192.168.203.255
        inet 192.168.200.5 netmask 0xfffffc00 broadcast 192.168.203.255
        inet6 fe80::a6ba:dbff:fe29:6695%bce0 prefixlen 64 scopeid 0x2
        inet6 fe80::53:1%bce0 prefixlen 64 scopeid 0x2
        inet6 2600:1700:210:b18f:a6ba:dbff:fe29:6695 prefixlen 64 autoconf
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
        nd6 options=3<PERFORMNUD,ACCEPT_RTADV>

grep bce0 /etc/rc.conf:
ifconfig_bce0="inet 192.168.200.4/22 "
ifconfig_bce0_alias0="inet 192.168.200.5/22 "
ifconfig_bce0_ipv6="inet6 fe80::53:1 accept_rtadv -auto_linklocal"
--
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 214-642-9640                 E-Mail: l...@lerctr.org
US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106

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