Date: Fri, 11 Mar 2022 23:17:07 -0800 From: Kevin Oberman <rkoberman@gmail.com> To: Larry Rosenman <ler@lerctr.org> Cc: Hajimu UMEMOTO <ume@mahoroba.org>, Michael Sierchio <kudzu@tenebras.com>, Freebsd net <freebsd-net@freebsd.org> Subject: Re: IPv6: How does one have the system use a prefix gotten from rtsol with a static host part? Message-ID: <CAN6yY1vRp00bqrZeMWBN2L=wzF1trev6xHwy4r7Dyd9%2B4Mir0w@mail.gmail.com> In-Reply-To: <17a0d48f56f6ba5da0ac055991b0a95c@lerctr.org> References: <d6a474ebfda77c4c8a678044d87b51ee@lerctr.org> <CAHu1Y71AP6cn2f5zyqU_ud-wyrQYXufM1TF=M6ssYFodxEKSNQ@mail.gmail.com> <9d7847539e02bfb55e2739cb67f02ee2@lerctr.org> <86h7836gy3.wl-ume@mahoroba.org> <4bc6f392a1d903aeb29c8e7886761da4@lerctr.org> <86fsnn6dwe.wl-ume@mahoroba.org> <17a0d48f56f6ba5da0ac055991b0a95c@lerctr.org>
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--000000000000da85cc05da003eb5 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, Mar 11, 2022 at 8:00 PM Larry Rosenman <ler@lerctr.org> wrote: > On 03/11/2022 9:36 pm, Hajimu UMEMOTO wrote: > > Hi, > > > > On Sat, 12 Mar 2022 20:47:10 +0900, Larry Rosenman wrote: > > > >> > Something like this should work for you: > >> > > >> > ifconfig_eth0_ipv6=3D"inet6 fe80::53:1 -auto_linklocal accept_rtad= v" > >> > >> Nope, didn't work on my home net: > > > > It's strange to me. > > That setting is actually working on my box. > > > >> =E2=9D=AF ifconfig bce0 > >> bce0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mt= u > >> 1500 > >> > options=3Dc01bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCS= UM,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 > > > > It seems -auto_linklocal is not working for you. > > > >> inet6 fe80::53:1%bce0 prefixlen 64 scopeid 0x2 > >> inet6 2600:1700:210:b18f:a6ba:dbff:fe29:6695 prefixlen 64 autocon= f > >> media: Ethernet autoselect (1000baseT <full-duplex>) > >> status: active > >> nd6 options=3D3<PERFORMNUD,ACCEPT_RTADV> > >> > >> grep bce0 /etc/rc.conf: > >> ifconfig_bce0=3D"inet 192.168.200.4/22 " > >> ifconfig_bce0_alias0=3D"inet 192.168.200.5/22 " > >> ifconfig_bce0_ipv6=3D"inet6 fe80::53:1 accept_rtadv -auto_linklocal" > > > > I'm using DHCP for IPv4 address. > > When ifconfig_bce0_alias0 is set, it does not work. > > It seems that ifconfig_bce0_alias0 does up bce0 before set > > -auto_linklocal. > > After some testing, following setting works here. > > > > ifconfig_bce0=3D"inet6 fe80::53:1 -auto_linklocal" > > ifconfig_bce0_alias0=3D"inet 192.168.200.4/22" > > ifconfig_bce0_alias1=3D"inet 192.168.200.5/22" > > ifconfig_bce0_ipv6=3D"inet6 accept_rtadv" > > > Thank You so much. That works here too. I wonder if this deserves a > document somewhere? > It's NOT intuitively obvious that: > a) Order in /etc/rc.conf matters > b) the fe80 address influences the global address > I don't see how 'a' is possible. All rc.conf does is defne a bunch of environmental variables. I don't see any way the order is relevant other than that a later definition of a variable overriding an earlier one. What am I missing here? --=20 Kevin Oberman, Part time kid herder and retired Network Engineer E-mail: rkoberman@gmail.com PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683 --000000000000da85cc05da003eb5 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_default" style=3D"fon= t-family:tahoma,sans-serif;font-size:small">On Fri, Mar 11, 2022 at 8:00 PM= Larry Rosenman <<a href=3D"mailto:ler@lerctr.org">ler@lerctr.org</a>>= ; wrote:<br></div></div><div class=3D"gmail_quote"><blockquote class=3D"gma= il_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,2= 04,204);padding-left:1ex">On 03/11/2022 9:36 pm, Hajimu UMEMOTO wrote:<br> > Hi,<br> > <br> > On Sat, 12 Mar 2022 20:47:10 +0900, Larry Rosenman wrote:<br> > <br> >> > Something like this should work for you:<br> >> ><br> >> >=C2=A0 =C2=A0ifconfig_eth0_ipv6=3D"inet6 fe80::53:1 -auto= _linklocal accept_rtadv"<br> >> <br> >> Nope, didn't work on my home net:<br> > <br> > It's strange to me.<br> > That setting is actually working on my box.<br> > <br> >> =E2=9D=AF ifconfig bce0<br> >> bce0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> m= etric 0 mtu<br> >> 1500<br> >>=C2=A0 =C2=A0 =C2=A0 options=3Dc01bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN= _HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,VLAN_HWTSO,LINKSTATE><br> >>=C2=A0 =C2=A0 =C2=A0 ether a4:ba:db:29:66:95<br> >>=C2=A0 =C2=A0 =C2=A0 inet 192.168.200.4 netmask 0xfffffc00 broadcas= t 192.168.203.255<br> >>=C2=A0 =C2=A0 =C2=A0 inet 192.168.200.5 netmask 0xfffffc00 broadcas= t 192.168.203.255<br> > <br> >>=C2=A0 =C2=A0 =C2=A0 inet6 fe80::a6ba:dbff:fe29:6695%bce0 prefixlen= 64 scopeid 0x2<br> > <br> > It seems -auto_linklocal is not working for you.<br> > <br> >>=C2=A0 =C2=A0 =C2=A0 inet6 fe80::53:1%bce0 prefixlen 64 scopeid 0x2= <br> >>=C2=A0 =C2=A0 =C2=A0 inet6 2600:1700:210:b18f:a6ba:dbff:fe29:6695 p= refixlen 64 autoconf<br> >>=C2=A0 =C2=A0 =C2=A0 media: Ethernet autoselect (1000baseT <full= -duplex>)<br> >>=C2=A0 =C2=A0 =C2=A0 status: active<br> >>=C2=A0 =C2=A0 =C2=A0 nd6 options=3D3<PERFORMNUD,ACCEPT_RTADV>= <br> >> <br> >> grep bce0 /etc/rc.conf:<br> >> ifconfig_bce0=3D"inet <a href=3D"http://192.168.200.4/22" rel= =3D"noreferrer" target=3D"_blank">192.168.200.4/22</a> "<br> >> ifconfig_bce0_alias0=3D"inet <a href=3D"http://192.168.200.5/= 22" rel=3D"noreferrer" target=3D"_blank">192.168.200.5/22</a> "<br> >> ifconfig_bce0_ipv6=3D"inet6 fe80::53:1 accept_rtadv -auto_lin= klocal"<br> > <br> > I'm using DHCP for IPv4 address.<br> > When ifconfig_bce0_alias0 is set, it does not work.<br> > It seems that ifconfig_bce0_alias0 does up bce0 before set<br> > -auto_linklocal.<br> > After some testing, following setting works here.<br> > <br> > ifconfig_bce0=3D"inet6 fe80::53:1 -auto_linklocal"<br> > ifconfig_bce0_alias0=3D"inet <a href=3D"http://192.168.200.4/22" = rel=3D"noreferrer" target=3D"_blank">192.168.200.4/22</a>"<br> > ifconfig_bce0_alias1=3D"inet <a href=3D"http://192.168.200.5/22" = rel=3D"noreferrer" target=3D"_blank">192.168.200.5/22</a>"<br> > ifconfig_bce0_ipv6=3D"inet6 accept_rtadv"<br> > <br> Thank You so much.=C2=A0 That works here too.=C2=A0 I wonder if this deserv= es a <br> document somewhere?<br> It's NOT intuitively obvious that:<br> a) Order in /etc/rc.conf matters<br> b) the fe80 address influences the global address<br></blockquote><div><br>= </div><div style=3D"font-family:tahoma,sans-serif;font-size:small" class=3D= "gmail_default">I don't see how 'a' is possible. All rc.conf do= es is defne a bunch of environmental variables. I don't see any way the= order is relevant other than that a later definition of a variable overrid= ing an earlier one. What am I missing here?<br></div></div>-- <br><div dir= =3D"ltr" class=3D"gmail_signature"><div dir=3D"ltr"><div><div dir=3D"ltr"><= div><div dir=3D"ltr"><div><div dir=3D"ltr">Kevin Oberman, Part time kid her= der and retired Network Engineer<br>E-mail: <a href=3D"mailto:rkoberman@gma= il.com" target=3D"_blank">rkoberman@gmail.com</a><br></div><div>PGP Fingerp= rint: D03FB98AFA78E3B78C1694B318AB39EF1B055683</div></div></div></div></div= ></div></div></div></div> --000000000000da85cc05da003eb5--
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