Thank you Murphy I dump the flow table of one of the switches, I found the dec_ttl there. I used the following command: sh ovs-ofctl dump-flows 0_0_1 Best regards,
Sent from my iPhone > On ٠١/٠٣/٢٠١٥, at ٣:٠٧ ص, Murphy McCauley <murphy.mccau...@gmail.com> wrote: > > 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 >
