Re: IPv6: How does one have the system use a prefix gotten from rtsol with a static host part?

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
> ume@mahoroba.org  ume@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: ler@lerctr.org
US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106