Hosts can't ping each other in a simple topology. #128
Description
Hello I am new to ipmininet. I tried a very simple topology, but the hosts can't successfully ping each other. I really need help, thank you!
#!/usr/bin/python3
import sys
import os
import getopt
import subprocess
from ipmininet.iptopo import IPTopo
from ipmininet.ipnet import IPNet
from ipmininet.cli import IPCLI
from ipmininet.topologydb import TopologyDB
class MyTopology(IPTopo):
def __init__(self, *args, **kwargs):
self.switch_count = 0
super().__init__(*args, **kwargs)
def build(self, *args, **kwargs):
r1 = self.addRouter("r1")
r2 = self.addRouter("r2")
h1 = self.addHost("h1")
h2 = self.addHost("h2")
self.addLink(r1, r2)
self.addLink(h1, r1)
self.addLink(r2, h2)
super().build(*args, **kwargs)
def ping_all(self, net):
h1 = net.get('h1')
h2 = net.get('h2')
h1.defaultIntf().updateIP6()
h2.defaultIntf().updateIP6()
print(h1.cmd("ping -c 3 "+ h2.defaultIntf().ip6))
print(h2.cmd("ping -c 3 "+ h1.defaultIntf().ip6))
def main():
exp = MyTopology()
net = IPNet(topo=exp, use_v4=False, use_v6=True)
db = TopologyDB(net=net)
db_path = "topologydb.json"
db.save(db_path)
try:
net.start()
exp.ping_all(net)
finally:
net.stop()
if __name__ == '__main__':
try:
main()
except:
print("!"*80)
print("Exception! Cleaning!")
print("!"*80)
import traceback
traceback.print_exc()
subprocess.call('sudo python3 -m ipmininet.clean', shell=True)