Complex network topology

To connect the three domains, we need 4 forwarders (2 pairs): one on net1, two on net2 and one on net3.

• The three domains are: net1, net2 and net3.
• The machines located on net1 and net3 are only reachable from fwd.net2 through ssh.
• The four forwarders are named Fwd1, Fwd2-1, Fwd2-3 and Fwd3.
• The DIET hierarchy is distributed on the three networks.
  

Command line to launch Fwd1:
fwd.net1$ dietForwarder name Fwd1 net-config net1.cfg

Command line to launch Fwd2-1:
fwd.net2$ dietForwarder name Fwd2-1 peer-name Fwd1
ssh-host fwd.net1 ssh-login dietUser
ssh-key id_rsa_net1 remote-port 50000
net-config net2-1.cfg C

Command line to launch Fwd2-3:
fwd.net2$ dietForwarder name Fwd2-3 peer-name Fwd3
ssh-host fwd.net3 ssh-login dietUser
ssh-key id_rsa_net3 remote-port 50000
net-config net2-3.cfg C

Command line to launch Fwd3:
fwd.net3$ dietForwarder name Fwd3 net-config net3.cfg

Configuration file for Fwd1:
Fwd1 manages the communications for all the host outside net1.

accept:.*
reject:.*\.net1

Configuration file for Fwd2-1:
Fwd2-1 manages the communication for all the hosts located on net1.

accept:.*\.net1

Configuration file for Fwd2-3:
Fwd2-3 manages the communication for all the hosts located on net3.

accept:.*\.net3

Configuration file for Fwd3:
Fwd1 manages the communications for all the host outside net3.

accept:.*
reject:.*\.net3

Using this configuration, a communication from a host on net1 to a host on net3 is first routed from Fwd1 to Fwd2-1 and then from Fwd2-3 to Fwd3. Note that Fwd1 has to be launched before Fwd2-1, and Fwd3 has to be launched before Fwd2-3.