def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
# Manually add interface IP addresses
print '** Adding interface IP addresses\n'
r1 = net.getNodeByName('r1')
r1.setIP('172.0.2.1/24', 24, 'r1-eth1')
r1.setIP('172.0.3.1/24', 24, 'r1-eth2')
r2 = net.getNodeByName('r2')
r2.setIP('172.0.4.1/24', 24, 'r2-eth1')
r3 = net.getNodeByName('r3')
r3.setIP('172.0.5.1/24', 24, 'r3-eth1')
r4 = net.getNodeByName('r4')
r4.setIP('172.0.5.2/24', 24, 'r4-eth1')
r4.setIP('172.0.6.1/24', 24, 'r4-eth2')
h1 = net.getNodeByName('h1')
h2 = net.getNodeByName('h2')
# Enable forwarding on each host
r1.cmd('sysctl net.ipv4.ip_forward=1')
r2.cmd('sysctl net.ipv4.ip_forward=1')
r3.cmd('sysctl net.ipv4.ip_forward=1')
r4.cmd('sysctl net.ipv4.ip_forward=1')
h1.cmd('sysctl net.ipv4.ip_forward=1')
h2.cmd('sysctl net.ipv4.ip_forward=1')
# Start servers
info('** Starting servers on port 800\n')
r1.cmd(
'python rip_lite_server.py "h1,r2,r3" "172.0.1.1,172.0.2.2,172.0.3.2" &'
)
r2.cmd('python rip_lite_server.py "r1,r4" "172.0.2.1,172.0.4.2" &')
r3.cmd('python rip_lite_server.py "r1,r4" "172.0.3.1,172.0.5.2" &')
r4.cmd(
'python rip_lite_server.py "r2,r3,h2" "172.0.4.1,172.0.5.1,172.0.6.2" &'
)
h1.cmd('python rip_lite_server.py "r1" "172.0.1.2" &')
h2.cmd('python rip_lite_server.py "r4" "172.0.6.1" &')
# Start CLI
info('** Running CLI\n')
CLI(net)
def run():
# Creates the virtual environment, by starting the network and configuring debug information
info('** Creating an instance of Lab6 network topology\n')
topo = Lab6Topo()
info('** Starting the network\n')
global net
global hosts
# We specify the OVSSwitch for better IPv6 performance
# We use mininext constructor with the instance of the network, the default controller and the customized openvswitch
net = MiniNExT(topo, controller=Controller, switch=OVSSwitch)
net.start()
info('** Executing custom commands\n')
# Space to add any customize command before prompting command line
# We assign IPv6 addresses to hosts h1, h2, and h5 as they are not configured through Quagga
# We gather only the hosts created in the topology (no switches nor controller)
hosts = [ net.getNodeByName( h ) for h in topo.hosts() ]
for host in hosts:
# Only to hosts: We assign IPv6 address
if host.name == 'h1':
host.cmd('ip -6 addr add 2001:1:0:1010::10/64 dev h1-eth1')
host.cmd('ip -6 route add default via 2001:1:0:1010::1')
elif host.name == 'h2':
host.cmd('ip -6 addr add 2001:1:0:2020::20/64 dev h2-eth1')
host.cmd('ip -6 route add default via 2001:1:0:2020::2')
elif host.name == 'h5':
host.cmd('ip -6 addr add 2001:1:0:5050::50/64 dev h5-eth1')
host.cmd('ip -6 route add default via 2001:1:0:5050::5')
# Enable Xterm window for every host
info('** Enabling xterm for hosts only\n')
# We check if the display is available
if 'DISPLAY' not in os.environ:
error( "Error starting terms: Cannot connect to display\n" )
return
# Remove previous (and possible non-used) socat X11 tunnels
cleanUpScreens()
# Mininet's function to create Xterms in hosts
makeTerms( hosts, 'host' )
# Enable the mininext> prompt
info('** Running CLI\n')
CLI(net)
def startNetwork(full=False):
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = I2()
if (full):
info("** Adding WEST and EAST\n")
add_west(topo)
add_east(topo)
global net
if (not full):
net = MiniNExT(topo, controller=OVSController)
else:
net = MiniNExT(topo, controller=RemoteController)
info('** Starting the network\n')
net.start()
config_i2(net)
if (full):
info("** Configuring WEST and EAST\n")
config_west(net)
config_east(net)
info("** Starting HTTP servers on EAST\n")
starthttp(net.getNodeByName('server1'))
starthttp(net.getNodeByName('server2'))
# info('** Dumping host connections\n')
# dumpNodeConnections(net.hosts)
#
# info('** Dumping host processes\n')
# for host in net.hosts:
# host.cmdPrint("ps aux")
return net
def run():
" Creates the virtual environment, by starting the network and configuring debug information "
info('** Creating an instance of Lab4 network topology\n')
topo = Lab4Topo()
info('** Starting the network\n')
global net
global hosts
# We use mininext constructor with the instance of the network, the default controller and the openvswitch
net = MiniNExT(topo, controller=Controller, switch=OVSSwitch)
net.start()
info('** Executing custom commands\n')
##############################################
# Space to add any customize command before prompting command line
# We provide an example on how to assign IPv6 addresses to hosts h1 and h2 as they
# are not configured through Quagga
# If required, you can add any extra logic to it
# We gather only the hosts created in the topology (no switches nor controller)
hosts = [net.getNodeByName(h) for h in topo.hosts()]
info('** Adding IPv6 address to hosts\n')
for host in hosts:
if host.name is 'h1':
host.cmd('ip -6 addr add 2001:1:0:11::10/64 dev h1-eth1')
host.cmd('ip -6 route add default via 2001:1:0:11::1')
elif host.name is 'h2':
host.cmd('ip -6 addr add 2001:1:0:12::20/64 dev h2-eth1')
host.cmd('ip -6 route add default via 2001:1:0:12::2')
info('** Enabling xterm for all hosts\n')
makeTerms(hosts, 'node')
##############################################
# Enable the mininext> prompt
info('** Running CLI\n')
CLI(net)
def config_dumbbell(topo):
global net
net = MiniNExT(topo, controller=OVSController, link=TCLink)
info("*** Creating links between nodes in dumbbell topology\n")
net.addLink(net.getNodeByName("client1"),
net.getNodeByName("router1"),
intfName1="meth1",
intfName2="client1")
net.addLink(net.getNodeByName("client2"),
net.getNodeByName("router1"),
intfName1="meth1",
intfName2="client2")
net.addLink(net.getNodeByName("router1"),
net.getNodeByName("router2"),
intfName1="router2",
intfName2="router1",
bw=1)
net.addLink(net.getNodeByName("server1"),
net.getNodeByName("router2"),
intfName1="meth1",
intfName2="server1")
net.addLink(net.getNodeByName("server2"),
net.getNodeByName("router2"),
intfName1="meth1",
intfName2="server2")
info(
"*** Configuring IP addresses and routing tables in dumbbell topology\n"
)
client1 = net.getNodeByName("client1")
client1.cmd("ifconfig meth1 %s/24 up" % ("10.0.1.1"))
client1.cmd("route add default gw %s meth1" % ("10.0.1.2"))
client1.cmd("iptables -A OUTPUT -p tcp --tcp-flags RST RST -j DROP")
client2 = net.getNodeByName("client2")
client2.cmd("ifconfig meth1 %s/24 up" % ("10.0.2.1"))
client2.cmd("route add default gw %s meth1" % ("10.0.2.2"))
client2.cmd("iptables -A OUTPUT -p tcp --tcp-flags RST RST -j DROP")
server1 = net.getNodeByName("server1")
server1.cmd("ifconfig meth1 %s/24 up" % ("12.0.1.1"))
server1.cmd("route add default gw %s meth1" % ("12.0.1.2"))
server1.cmd("iptables -A OUTPUT -p tcp --tcp-flags RST RST -j DROP")
server2 = net.getNodeByName("server2")
server2.cmd("ifconfig meth1 %s/24 up" % ("12.0.2.1"))
server2.cmd("route add default gw %s meth1" % ("12.0.2.2"))
server2.cmd("iptables -A OUTPUT -p tcp --tcp-flags RST RST -j DROP")
router1 = net.getNodeByName("router1")
router1.cmd("ifconfig client1 %s/24 up" % ("10.0.1.2"))
router1.cmd("ifconfig client2 %s/24 up" % ("10.0.2.2"))
router1.cmd("ifconfig router2 %s/24 up" % ("11.0.1.1"))
router1.cmd("route add -net %s/8 gw %s dev router2" %
("12.0.0.0", "11.0.1.2"))
router1.cmd("route add -net %s/24 gw %s dev client1" %
("10.0.1.0", "10.0.1.1"))
router1.cmd("route add -net %s/24 gw %s dev client2" %
("10.0.2.0", "10.0.2.1"))
router2 = net.getNodeByName("router2")
router2.cmd("ifconfig server1 %s/24 up" % ("12.0.1.2"))
router2.cmd("ifconfig server2 %s/24 up" % ("12.0.2.2"))
router2.cmd("ifconfig router1 %s/24 up" % ("11.0.1.2"))
router2.cmd("route add -net %s/8 gw %s dev router1" %
("10.0.0.0", "11.0.1.1"))
router2.cmd("route add -net %s/24 gw %s dev server1" %
("12.0.1.0", "12.0.1.1"))
router2.cmd("route add -net %s/24 gw %s dev server2" %
("12.0.2.0", "12.0.2.1"))
return net
def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=None)
info('** Adding the controller\n')
# Adding the remote controller
#controller = net.addController('c1', controller=RemoteController, ip='2.0.0.4', port=6633)
net.start()
info('** Adding the links\n')
# Create the full topology, including the SWIFTED router
Link(net.getNodeByName('r1'),
net.getNodeByName('r2'),
intfName1='r2',
intfName2='r1')
Link(net.getNodeByName('r3'),
net.getNodeByName('r5'),
intfName1='r5',
intfName2='r3')
Link(net.getNodeByName('r4'),
net.getNodeByName('r5'),
intfName1='r5',
intfName2='r4')
Link(net.getNodeByName('r5'),
net.getNodeByName('r6'),
intfName1='r6',
intfName2='r5')
# Configuring host r1
node = net.getNodeByName('r1')
node.cmd('ifconfig r2 1.0.0.2/24')
node.cmd('route add default gw 1.0.0.1')
# Configuring r5 and r6
node = net.getNodeByName('r5')
node.cmd('/root/.disable_rp_filtering.sh')
node = net.getNodeByName('r6')
node.cmd('/root/.disable_rp_filtering.sh')
node.cmd('ifconfig r5 6.0.0.2/24')
node.cmd('ifconfig lo 109.207.108.1/24'
) ## CHange based on the bview R6 is advertising
node.cmd('route add default gw 6.0.0.1')
# Setting the right MAC addresses
node = net.getNodeByName('r2')
node.cmd('ip link set dev s1 address 20:00:00:00:00:01')
node.cmd('/root/.disable_rp_filtering.sh')
node.cmd('arp -s 2.0.0.2 20:00:00:00:00:02')
node.cmd('arp -s 2.0.0.3 20:00:00:00:00:03')
node.cmd('arp -s 2.0.0.4 20:00:00:00:00:04')
node = net.getNodeByName('r3')
node.cmd('ip link set dev s1 address 20:00:00:00:00:02')
node.cmd('/root/.disable_rp_filtering.sh')
node.cmd('arp -s 2.0.0.1 20:00:00:00:00:01')
node.cmd('arp -s 2.0.0.3 20:00:00:00:00:03')
node.cmd('arp -s 2.0.0.4 20:00:00:00:00:04')
node = net.getNodeByName('r4')
node.cmd('ip link set dev s1 address 20:00:00:00:00:03')
node.cmd('/root/.disable_rp_filtering.sh')
node.cmd('arp -s 2.0.0.1 20:00:00:00:00:01')
node.cmd('arp -s 2.0.0.2 20:00:00:00:00:02')
node.cmd('arp -s 2.0.0.4 20:00:00:00:00:04')
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
#info('** Testing network connectivity\n')
#net.ping(net.hosts)
info('** Dumping host processes\n')
for host in net.hosts:
host.cmdPrint("ps aux")
info('** Running CLI\n')
CLI(net)
def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
print("Arun testing Start")
h1 = net.getNodeByName('H1')
h2 = net.getNodeByName('H2')
r1 = net.getNodeByName('R1')
r1.cmdPrint('ip address add 192.0.2.1/24 dev R1-eth1')
r1.cmdPrint('ip address add 192.0.3.1/24 dev R1-eth2')
r2 = net.getNodeByName('R2')
r2.cmdPrint('ip address add 192.0.4.1/24 dev R2-eth1')
r4 = net.getNodeByName('R4')
r4.cmdPrint('ip address add 192.0.5.2/24 dev R4-eth2')
r4.cmdPrint('ip address add 192.0.4.2/24 dev R4-eth1')
r3 = net.getNodeByName('R3')
r3.cmdPrint('ip address add 192.0.5.1/24 dev R3-eth1')
info('** Enabling Ip forwarding\n')
for host in net.hosts:
host.cmdPrint("echo 1 > /proc/sys/net/ipv4/ip_forward")
info('**** Setting static routes*******')
h1.cmdPrint('ip route add 192.0.6.0/24 via 192.0.1.2 dev H1-eth0')
h1.cmdPrint('ip route add 192.0.2.0/24 via 192.0.1.2 dev H1-eth0')
h1.cmdPrint('ip route add 192.0.4.0/24 via 192.0.1.2 dev H1-eth0')
h1.cmdPrint('ip route add 192.0.3.0/24 via 192.0.1.2 dev H1-eth0')
h1.cmdPrint('ip route add 192.0.5.0/24 via 192.0.1.2 dev H1-eth0')
r1.cmdPrint('ip route add 192.0.6.0/24 via 192.0.2.2 dev R1-eth1')
r1.cmdPrint('ip route add 192.0.4.0/24 via 192.0.2.2 dev R1-eth1')
r1.cmdPrint('ip route add 192.0.5.0/24 via 192.0.3.2 dev R1-eth2')
r2.cmdPrint('ip route add 192.0.6.0/24 via 192.0.4.2 dev R2-eth1')
r2.cmdPrint('ip route add 192.0.4.0/24 via 192.0.4.2 dev R2-eth1')
r2.cmdPrint('ip route add 192.0.1.0/24 via 192.0.2.1 dev R2-eth0')
r2.cmdPrint('ip route add 192.0.3.0/24 via 192.0.2.1 dev R2-eth0')
h2.cmdPrint('ip route add 192.0.1.0/24 via 192.0.6.1 dev H2-eth0')
h2.cmdPrint('ip route add 192.0.2.0/24 via 192.0.6.1 dev H2-eth0')
h2.cmdPrint('ip route add 192.0.3.0/24 via 192.0.6.1 dev H2-eth0')
h2.cmdPrint('ip route add 192.0.4.0/24 via 192.0.6.1 dev H2-eth0')
h2.cmdPrint('ip route add 192.0.5.0/24 via 192.0.6.1 dev H2-eth0')
r4.cmdPrint('ip route add 192.0.2.0/24 via 192.0.4.1 dev R4-eth1')
r4.cmdPrint('ip route add 192.0.1.0/24 via 192.0.4.1 dev R4-eth1')
r4.cmdPrint('ip route add 192.0.3.0/24 via 192.0.5.1 dev R4-eth2')
r3.cmdPrint('ip route add 192.0.1.0/24 via 192.0.3.1 dev R3-eth0')
r3.cmdPrint('ip route add 192.0.6.0/24 via 192.0.5.2 dev R3-eth1')
r3.cmdPrint('ip route add 192.0.2.0/24 via 192.0.3.1 dev R3-eth0')
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
info('** Testing network connectivity\n')
net.ping(net.hosts)
info('** Dumping host processes\n')
for host in net.hosts:
host.cmdPrint("ps aux")
info('** Running CLI\n')
CLI(net)
def startNetwork(topo_info, router_lo, init_quagga_configs, group_number):
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaInternet2Topo(topo_info, router_lo)
global net
#net = MiniNExT(topo, controller=OVSController)
net = MiniNExT(topo, controller=RemoteController)
info('** Adding Static networks\n')
addStaticNet(net)
info('** Starting the network\n')
net.start()
info('** Setting Static network\n')
setStaticNet(net, group_number)
info('** Adding links and loopback interfaces')
links_set = Set()
for router_name, ngh_list in topo_info.items():
for ngh in ngh_list:
# Make sure to only create one link between two routers
if ngh + router_name not in links_set:
print 'Link added between ' + str(router_name) + ' and ' + str(
ngh)
Link(net.getNodeByName(router_name),
net.getNodeByName(ngh),
intfName1=ngh.lower(),
intfName2=router_name.lower())
links_set.add(router_name + ngh)
# Add link to the host
Link(net.getNodeByName(router_name),
net.getNodeByName(router_name + '-host'),
intfName1='host',
intfName2=router_name.lower())
info('** Configuring the IP addresses **\n')
for router_name in topo_info:
node = net.getNodeByName(router_name)
node.cmd('ifconfig ebgp_peer 0 up')
#node.cmd('ifconfig lo '+router_lo[router_name]+'/24 up')
for ngh, ip in topo_info[router_name].items():
intf_name = ngh.lower()
if init_quagga_configs:
node.cmd('ifconfig ' + intf_name + ' 0.0.0.0/0 up')
#else:
# node.cmd('ifconfig '+intf_name+' '+ip+' up')
node = net.getNodeByName('HOUS')
node.cmd('ifconfig mgt 0.0.0.0/0 up')
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
info('** Testing network connectivity\n')
info('** Disabled **\n')
#net.ping(net.hosts)
info('** Dumping host processes\n')
for host in net.hosts:
if host.name in ['server1', 'server2']:
continue
host.cmdPrint("ps aux")
info('** Running CLI\n')
CLI(net)
stopStaticNet(net)
