# prepare the GZ; net2 is the interface connected to the Internet.
dladm create-etherstub ether0
dladm create-vnic -l ether0 vnic0
ipadm create-ip vnic0
ipadm create-addr -T static -a 10.0.0.1/8 vnic0/v4
routeadm -u -e ipv4-forwarding
ipadm set-ifprop -p forwarding=on -m ipv4 net2
ipadm set-ifprop -p forwarding=on -m ipv4 vnic0
echo "map net2 10.0.0.0/8 -> 0/32 portmap tcp/udp auto" > /etc/ipf/ipnat.conf
echo "map net2 10.0.0.0/8 -> 0/32" >> /etc/ipf/ipnat.conf
svcadm enable network/ipfilter
# prepare the zone; for-sysroot is the zone name.
dladm create-vnic -l ether0 vnic1
zonecfg -z for-sysroot "create; set ip-type=exclusive; add net; set physical=vnic1; end; commit"
zoneadm -z for-sysroot install
zoneadm -z for-sysroot boot; zlogin -C for-sysroot
# in sys-config set up vnic1/v4 10.0.0.2/8 with 10.0.0.1 as default router.
# delete the zone
zoneadm -z for-sysroot shutdown
zoneadm -z for-sysroot uninstall -F
zonecfg -z for-sysroot delete -F
dladm delete-vnic vnic1
# restore GZ to original state
routeadm -u -d ipv4-forwarding
ipadm delete-addr vnic0/v4
ipadm delete-ip vnic0
dladm delete-vnic vnic0
dladm delete-etherstub ether0
ipadm set-ifprop -p forwarding=off -m ipv4 net2
svcadm disable network/ipfilter
rm /etc/ipf/ipnat.conf
