FreeBSD jails: networking: iface aliases jail.conf

This is the easiest, and most standard way of setting up networking within jails.

This is appropriate if you do not have any special needs
(ex: jail specific network interfaces, a separate loopback addr, etc).

This is preferred to the rc.conf method, since all of your jail
configuration is contained in one place (also it keeps your rc.conf clean).

# /etc/jail.conf

jailname {
  interface em0;
  ip4.addr "192.168.1.200";
  host.hostname "jailname";
}

sudo jail -c jailname  # start jail

Anonymous