On Sun, 03 Jun 2018 05:02:16 +0900, Fernández Peña Héctor wrote: > > [1 <multipart/alternative (7bit)>] > [1.1 <text/plain; iso-8859-1 (quoted-printable)>] > Hello developers > > I'm trying to send TCP traffic between two hosts that are in different > subnets through a third host that acts as a router > The VM Router has an ovs implemented which is managed with a ryu app. > > The problem is that the VM "router" never forwards traffic tcp.
I assume you are using packet-in and packet-out to implement routing. 1. Are you getting packet-ins? 2. Is the _handle_tcp_fwd function actually called? 3. Are you correctly sending packet-outs to ovs? > I attached the tcp function: > > def _handle_tcp_fwd(self, datapath, port, pkt_ethernet, pkt_ipv4, > pkt_tcp): > pkt = packet.Packet() > if port == 1: > mac_dst = self.mac_victima > mac_src = self.hw_addruno > elif port == 2: > mac_dst = self.mac_atacante > mac_src = self.hw_addrdos > > pkt.add_protocol(ethernet.ethernet(ethertype=pkt_ethernet.ethertype, > dst=mac_dst, > src=mac_src)) > pkt.add_protocol(ipv4.ipv4(dst=pkt_ipv4.dst, > src=pkt_ipv4.src, > proto=pkt_ipv4.proto)) > pkt.add_protocol(tcp.tcp(src_port=pkt_tcp.src_port, > dst_port=pkt_tcp.dst_port, > seq=pkt_tcp.seq, > ack=pkt_tcp.ack, > offset=0, > bits=pkt_tcp.bits, > window_size=pkt_tcp.window_size, > csum=0, > urgent=pkt_tcp.urgent, > option=pkt_tcp.option)) > self._send_packet(datapath, port, pkt) Are you handling the tcp payloads somewhere? -- IWAMOTO Toshihiro ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Ryu-devel mailing list Ryu-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ryu-devel
