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:
> >
> > Is IPv6 in jails supposed to work? Does not work for me, what am I doing
> > wrong?
> >
> > Here is a test jail:
> >
> > test4 {
> > path = /d02/jails/test4 ;
> > mount.devfs;
> > ip4 = new;
> > ip6 = new;
> > ip4.addr = 192.168.4.204/24;
> > ip6.addr = 2001:470:ecba:3::4/64;
>
> I usually do something like this:
>
> ip6.addr += "lo0|2001:db8:1234:5678::ef/128";
>
> to add the single address out of a /64 to the loopback interface on the host
> 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.
>
> 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 = 2001:470:ecba:3::4/64" to
"ip6.addr = 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
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:/ #
>
> 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=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
description: Inside
options=8209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_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=21<PERFORMNUD,AUTO_LINKLOCAL>
root@test4:/ #
--
Victor Sudakov, VAS4-RIPE, VAS47-RIPN
2:5005/49@fidonet http://vas.tomsk.ru/
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