demo: add testing of UDP

The verification of both UDP6 and UDP4 is added to the demo by
forcing machine 8 to create a monotunnel, either with machine 6 or 7.
These 2 machines, additionnaly to talking to machine8 with UDP6,
can talk to the registry and to each other via UDP4, they also keep
their ability to create tunnels via TCP with other machines.

demo/demo

@@ -146,6 +146,11 @@ m7_if_0.add_v4_address(address='10.0.1.3', prefix_len=24)
 m8_if_0.add_v4_address(address='10.0.1.4', prefix_len=24)
 m6_if_1.add_v4_address(address='192.168.241.1', prefix_len=24)
 
+# Add IPv6 addresses to test UDP6 between m8 and m6/m7
+m6_if_0.add_v6_address(address='fc42:6::1', prefix_len=16)
+m7_if_0.add_v6_address(address='fc42:7::1', prefix_len=16)
+m8_if_0.add_v6_address(address='fc42:8::1', prefix_len=16)
+
 def add_llrtr(iface, peer, dst='default'):
     for a in peer.get_addresses():
         a = a['address']

demo/m6/re6stnet.conf

@@ -2,10 +2,12 @@ log m6/
 run m6/run
 state m6/
 pp 1194 tcp
+pp 1194 udp
+pp 1195 udp6
 ca ca.crt
 cert m6/cert.crt
 key m6/cert.key
-default
+disable-proto none
 # TODO: Run a DHCPv4 client on machine9. Unfortunately, isc-dhcp-client 4.2.4
 #       fails with "Bind socket to interface: No such device"
 daemon "exec dnsmasq -d8 - -i $re6stnet_iface -F 192.168.42.2,192.168.42.254,255.255.255.0,infinite -F ${re6stnet_subnet%/*},ra-only,${re6stnet_subnet#*/},1d -O option:router,192.168.42.1 -l m6/dnsmasq.leases"

demo/m7/re6stnet.conf

@@ -2,7 +2,9 @@ log m7/
 run m7/run
 state m7/
 pp 1194 tcp
+pp 1194 udp
+pp 1195 udp6
 ca ca.crt
 cert m7/cert.crt
 key m7/cert.key
-default
+disable-proto none

demo/m8/re6stnet.conf

@@ -4,5 +4,5 @@ state m8/
 ca ca.crt
 cert m8/cert.crt
 key m8/cert.key
-default
-client 10.0.1.2,1194,tcp;10.0.1.3,1194,tcp
+disable-proto none
+client fc42:6::1,1195,udp6;fc42:7::1,1195,udp6

demo/registry/re6stnet.conf

@@ -6,3 +6,4 @@ ca ca.crt
 cert registry/cert.crt
 key registry/cert.key
 gateway
+disable-proto none