Date: Wed, 5 Jun 2019 08:44:52 -0700 (PDT) From: "Rodney W. Grimes" <freebsd-rwg@gndrsh.dnsmgr.net> To: David Mehler <dave.mehler@gmail.com> Cc: Kurt Jaeger <pi@freebsd.org>, freebsd-pf <freebsd-pf@freebsd.org> Subject: Re: FreeBSD 12, pf, and Dual IP stack? Message-ID: <201906051544.x55FiqJf053437@gndrsh.dnsmgr.net> In-Reply-To: <CAPORhP4tCzvXvPiqy0FnGeZW2ZiWcsGXg=f3mDQTVvNEeqJf6Q@mail.gmail.com>
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> Hello, > > So your setup looks like mine except I only have one ipv4 and one ipv6 > interface, how do I alias the ipv6 address space I have? I don't know > how to hex split. > > Thanks. > Dave. > > > On 6/5/19, Kurt Jaeger <pi@freebsd.org> wrote: > > 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 I am not sure if this well help you to understand the IPv6 range of addresses, but the two above short form numbers are in long form: 2001:14f8:0200:0004: 0000:0000:0000:0004 2001:14f8:0200:0004: 0000:0000:0000:0005 I have inserted the space to show you the break at "prefixlen 64, aka /64". You actaully have the lower 64 bits to play with other than the 2 that have been setup, one being your IP address, and the other being your default router on this segment. > > media: Ethernet autoselect (1000baseT <full-duplex>) > > status: active > > nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> > > > > -- > > pi@opsec.eu +49 171 3101372 One year to go ! -- Rod Grimes rgrimes@freebsd.org
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