From owner-freebsd-pf@freebsd.org  Wed Jun  5 04:22:54 2019
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Date: Wed, 5 Jun 2019 06:22:49 +0200
From: Kurt Jaeger <pi@freebsd.org>
To: David Mehler <dave.mehler@gmail.com>
Cc: freebsd-pf <freebsd-pf@freebsd.org>
Subject: Re: FreeBSD 12, pf, and Dual IP stack?
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Hi!

> Yes, an ifconfig on my vtnet0 interface does show the ipv6 address and
> it has prefixlen 64 I'm assuming that's what your refering to? Can you
> clarify your meaning about ipv6 aliases?

Here's one of my systems, with two IPv6 addresses, so it has an two
IPv6 and two IPv4 addresses:

igb0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=e527bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,WOL_MAGIC,VLAN_HWFILTER,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6>
        ether 0c:9d:92:85:0f:7a
        inet 193.105.105.132 netmask 0xffffffc0 broadcast 193.105.105.191
        inet 193.105.105.133 netmask 0xffffffff broadcast 193.105.105.133
        inet6 fe80::e9d:92ff:fe85:f7a%igb0 prefixlen 64 scopeid 0x1
        inet6 2001:14f8:200:4::4 prefixlen 64
        inet6 2001:14f8:200:4::5 prefixlen 64
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>

-- 
pi@opsec.eu            +49 171 3101372                    One year to go !