WEBVTT 00:00.840 --> 00:07.760 Okay, now we don't need this line of code because these were just for showing more details. 00:07.880 --> 00:09.960 Okay, now I don't need them. 00:13.720 --> 00:14.120 Okay. 00:14.880 --> 00:17.920 Now the this part. 00:17.960 --> 00:18.160 Okay. 00:18.200 --> 00:19.440 This part is complete. 00:19.800 --> 00:22.800 And now it is time to send the broadcast. 00:22.840 --> 00:23.760 Okay. 00:23.800 --> 00:25.000 Send the broadcast. 00:25.240 --> 00:30.360 So in Scapy we have a function called SRP. 00:30.400 --> 00:30.720 Okay. 00:30.760 --> 00:33.680 Send and receive packet or send and receive. 00:34.440 --> 00:36.360 So here we are going to use that okay. 00:36.360 --> 00:39.240 Let's use Scapy dot SRP. 00:40.680 --> 00:44.360 And here we need to give the uh packet. 00:44.400 --> 00:44.600 Okay. 00:44.640 --> 00:49.080 It is ARP request and broadcast. 00:49.120 --> 00:51.400 This is the packet that we want to send. 00:51.920 --> 00:58.200 And while we send that packet here you will receive two things okay. 00:58.240 --> 00:59.800 One answered. 00:59.840 --> 01:00.880 Okay. 01:00.880 --> 01:02.160 That is here. 01:02.200 --> 01:04.380 And it is telling that I have this these. 01:04.780 --> 01:07.500 And also when an answer. 01:08.020 --> 01:11.100 And for example you will send this packet to this one. 01:11.100 --> 01:16.220 And to this one the router will receive the packet that is not answered. 01:16.260 --> 01:17.380 Okay. 01:17.420 --> 01:19.660 From router that is not answered. 01:19.660 --> 01:21.780 So we need to handle that as well. 01:21.780 --> 01:24.660 So we are receiving to the thing here. 01:24.660 --> 01:26.500 One of them is the answer. 01:26.500 --> 01:32.980 So let's name it answered and and answer. 01:36.140 --> 01:44.220 So now we have this both here and also we have one more thing. 01:44.220 --> 01:45.580 And that is the timeout okay. 01:45.580 --> 01:51.580 For example it will send the packet to the whole computers okay. 01:52.180 --> 01:55.260 And it will wait for a lot of time. 01:55.260 --> 01:58.460 So you need to give a timeout to this for example one second. 01:58.460 --> 02:05.180 So for the first computer if it did not receive any answer it. 02:05.220 --> 02:09.770 For example wait for one second and then go for the for the next client. 02:09.810 --> 02:13.530 So if you don't give it so you will be back here. 02:13.530 --> 02:18.570 I am going to give that timeout to one for example. 02:18.610 --> 02:19.050 Okay. 02:19.810 --> 02:25.090 And now let's print uh some of them. 02:25.090 --> 02:28.650 For example we have answered summary. 02:31.850 --> 02:33.570 Let's see what do we have here. 02:33.610 --> 02:34.050 Okay. 02:41.050 --> 02:46.130 Now you are seeing that finishing sending 256 packet. 02:46.170 --> 02:46.370 Okay. 02:46.410 --> 02:53.650 Which is, uh, sending for all computer and only receiving three packets. 02:53.650 --> 02:54.130 Okay. 02:54.170 --> 02:55.450 Got three answered. 02:55.930 --> 03:01.850 And the whole thing that is not received, which is not which is unanswered. 03:01.890 --> 03:04.170 Okay, 253 packets. 03:04.770 --> 03:12.270 So here you see, we have either ARP who has it is saying it is telling that who has this IP address, 03:12.550 --> 03:14.470 say this one, which is my computer. 03:14.510 --> 03:14.910 Okay. 03:16.230 --> 03:22.310 And it is telling me that the IP is at. 03:22.350 --> 03:25.750 It's telling that I have this IP which is the router. 03:25.790 --> 03:26.110 Okay. 03:26.150 --> 03:28.510 And my Mac address is this one. 03:28.790 --> 03:29.910 And also this one. 03:29.910 --> 03:31.910 My Mac address is this one. 03:31.910 --> 03:33.590 And also the other client. 03:33.630 --> 03:34.390 Okay. 03:34.430 --> 03:36.910 Telling that my IP is this one. 03:36.910 --> 03:38.670 And I have this Mac address. 03:38.990 --> 03:42.150 And here it is asking that who has this IP. 03:42.790 --> 03:45.990 And the client is responding that I have this IP. 03:45.990 --> 03:49.270 And in my Mac address is this one. 03:49.310 --> 03:50.110 Okay. 03:50.150 --> 03:54.830 So my computer is asking and it is sending for all the client. 03:54.830 --> 03:57.870 As you see we have three client here. 03:57.910 --> 03:58.110 Okay. 03:58.150 --> 04:00.790 One of them is router and we have two more. 04:01.790 --> 04:05.110 And it is like this. 04:05.150 --> 04:05.590 Okay. 04:06.110 --> 04:08.470 So now we have this. 04:08.510 --> 04:15.710 And let's go for the next lecture to see what is going to be the coolest thing in the in the next lecture.