Using [<protocol>/<port>] selectors in the
local_ts and remote_ts child parameters, two IPsec tunnels
between the roadwarrior carol and the gateway moon are defined.
The first CHILD_SA is restricted to ICMP packets and the second
covers TCP-based SSH connections. The established tunnels are tested
by carol by first pinging alice behind moon and
then setting up an SSH session to the same client.