multiple interfaces for jail.conf(1) and jail_set(2)

[Isaac (.ike) Levy]

Hi Valeri,

> On Dec 13, 2016, at 5:03 PM, Valeri Galtsev <galtsev at kicp.uchicago.edu> wrote:
> 
> On Tue, December 13, 2016 2:14 pm, Isaac (.ike) Levy wrote:
>> Hi All,
>> 
>> Can I specify multiple IP interfaces and assign IP’s to them using
>> jail.conf?
>> I have jails with IPv4/IPv6 addresses on multiple physical interfaces, as
>> well as assigning a loopback.
> 
> Last time I tried it which was about year and a half ago the answer was:

Just to clarify your answer,

> no, this is not possible. Jail can only have one IP address (in addition
> to loopback addresses).

Do you mean this just for jail.conf configuration/usage?

If so, from all I’ve read and tried, that makes complete sense, and makes me sad as it prevents me from using the slickness of jail.conf(1) and jail_set(2) - not yet :)

--
However, to be very clear for the list archive, jails can most definately have many IP addresses, (since between FreeBSD 7 and 8 I believe?), including loopback, (which is just an IP address like any other),

For example,

# ifconfig em0 inet alias 10.10.10.10/32
# ifconfig em1 inet alias 10.10.10.11/32
# ifconfig lo0 inet alias 127.0.0.11/32
# ifconfig em0 inet6 alias 2:2:2:2::10 prefixlen 64
# jail -c path=/some/place host.hostname=myjail ip4.addr=“10.10.10.10,10.10.10.11,127.0.0.11" ip6.addr="2:2:2:2::10" command=/bin/sh /etc/rc

Best,
.ike