Date: Wed, 18 Mar 2020 22:58:43 +0700 From: Victor Sudakov <vas@sibptus.ru> To: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> Cc: freebsd-questions@freebsd.org, freebsd-net@freebsd.org Subject: Re: IPv6 in jails Message-ID: <20200318155843.GA66451@admin.sibptus.ru> In-Reply-To: <069AA173-29F1-4F9F-B7D6-31BF2C559C17@lists.zabbadoz.net> References: <20200318151556.GA64871@admin.sibptus.ru> <069AA173-29F1-4F9F-B7D6-31BF2C559C17@lists.zabbadoz.net>
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Bjoern A. Zeeb wrote:
> >=20
> > Is IPv6 in jails supposed to work? Does not work for me, what am I doing
> > wrong?
> >=20
> > Here is a test jail:
> >=20
> > test4 {
> > path =3D /d02/jails/test4 ;
> > mount.devfs;
> > ip4 =3D new;
> > ip6 =3D new;
> > ip4.addr =3D 192.168.4.204/24;
> > ip6.addr =3D 2001:470:ecba:3::4/64;
>=20
> I usually do something like this:
>=20
> ip6.addr +=3D "lo0|2001:db8:1234:5678::ef/128";
>=20
> to add the single address out of a /64 to the loopback interface on the h=
ost
> and then pass it through to the jail. The /64 however is actually routed=
to
> my host so might not work if you have the /64 on the physical interface.
>=20
> Given it is a jail without vnet you cannot assign a /64 to the jail, you
> want to just specify the address usually (plainly or as /128).
Bjoern, I've just changed "ip6.addr =3D 2001:470:ecba:3::4/64" to
"ip6.addr =3D 2001:470:ecba:3::4/128" per your advice, and restarted the
jails, without any visible result. The daemons inside still listen only
on tcp4:
root@test4:/ # sockstat -l
USER COMMAND PID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS =
=20
root sendmail 18711 3 tcp4 192.168.4.204:25 *:*
root sshd 18708 3 tcp4 192.168.4.204:22 *:*
root syslogd 18643 5 udp4 192.168.4.204:514 *:*
root syslogd 18643 6 dgram /var/run/log
root syslogd 18643 7 dgram /var/run/logpriv
root@test4:/ #=20
>=20
> One thing to check first is ifconfig inside the jail does see the
> address?
Still does, but no use:
root@test4:/ # ifconfig re1
re1: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
description: Inside
options=3D8209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,W=
OL_MAGIC,LINKSTATE>
ether c4:12:f5:33:c9:7c
inet 192.168.4.204/24 broadcast 192.168.4.255
inet6 2001:470:ecba:3::4/128
media: Ethernet autoselect (none)
status: no carrier
nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL>
root@test4:/ #=20
--=20
Victor Sudakov, VAS4-RIPE, VAS47-RIPN
2:5005/49@fidonet http://vas.tomsk.ru/
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