Have you tried looking at the table on the switch and verifying that you see the entry as you expect (e.g., including the decrement action)? The easiest way to do this is probably using ovs-ofctl.
-- Murphy On Feb 28, 2015, at 12:28 PM, AMER <amer7...@hotmail.com> wrote: > Hello, > > Dear > > I am using mininet v 2.0 and OVS 1,10 > I run wireshatk in the background to check the IP-TTL value, however it isn't > decremented > I have used the following commands in riplpox to decrement the IP_TTL in > reactive mode > > def install(self, port, packet, buf = None, idle_timeout = 0, hard_timeout > = 0, > priority = of.OFP_DEFAULT_PRIORITY): > # msg = of.ofp_flow_mod() > msg = nx.nx_flow_mod() > # msg.match = match > msg.match.eth_src = packet.src > msg.match.eth_dst = packet.dst > msg.idle_timeout = idle_timeout > msg.hard_timeout = hard_timeout > msg.priority = priority > msg.actions.append(nx.nx_action_dec_ttl()) > msg.actions.append(of.ofp_action_output(port = port)) > msg.buffer_id = buf > self.connection.send(msg) > > Best regards, > > Eng Amer Alghadhban > COE > SANS-GCFW > CEH, SCNP, CCNA
