python icmp

Python sends ICMP echo requesy request Copy Code code as follows: Import socket Import struct def checksum (source_string):sum = 0Countto = (len (source_string)/2) *2Count = 0While CountThisval = Ord (Source_string[count + 1]) *256 + ord (source_string[count))sum = sum + thisvalsum = sum 0xFFFFFFFFCount = Count + 2If Counttosum = sum + ord (Source_string[len (source_string)-1])sum = sum 0x

Python sends icmp echo requesy requestCopy codeThe Code is as follows:Import socketImport struct Def checksum (source_string ):Sum = 0Countid = (len (source_string)/2) * 2Count = 0While count ThisVal = ord (source_string [count + 1]) * 256 + ord (source_string [count])Sum = sum + thisValSum = sum 0 xffffffffCount = count + 2If countTo Sum = sum + ord (source_string [len (source_string)-1])Sum = sum 0 xfff

=socket.socket (Socket.af_inet,socket. sock_raw,255)S.setsockopt (0, socket. IP_HDRINCL, 1)If this is set under OS X, the invalid argument error is reported in the location of the call to SendTo (), and then the problem is found on the third parameter 255 of the first line, which is testedUnder OS X, this parameter is set to 0 or 255 to be an error.Under Windows, this parameter is set to 0 or 255 without error.Under Linux, this parameter is set to 0 will be error, set to 255 will not errorIt is

Construct IP and ICMP headers for Python socket programming, pythonicmp In the past two days, an experiment requires you to construct your own IP Address Header. If you encounter many problems, you have finally completed the experiment in one day. There are a lot of questions about socket on the Internet. I only record the problems I encountered when constructing an IP header. Because I have never played th

When doing an ICMP attack, the function that sends the packet is first written in Python.The data packet is Scapy module which needs to be installed first: Apt-get install Python-scapy" "Date:2014/12/3author:yssfunction:send packets from host to server with multithreading" "ImportThreading fromTimeImportSleep,ctime fromScapy.allImport*Num=1000#The number of the threadclassMyThread (Threading. Thread):def __

Mainly use Scapy to completeBasic EnvironmentVM1 (192.168.1.226)||VM2 (192.168.1.125)VM1 encapsulation ICMP packets sent to VM2VM1 script:#! /usr/bin/env pythonfrom scapy.all Import *target = "192.168.1.125" IP = IP () ICMP = ICMP () ip.dst = Targeticmp.type = 0icmp.c Ode = 0send (ip/icmp)VM2 ScriptFrom scapy.all impor

Linux ICMP feature Analysis one ICMP protocol-related format The ICMP protocol is a very important protocol in the network layer, it is called the Internet Control Message Protocol (Internet controlling messaging Protocol), the ICMP protocol makes up the lack of IP, it uses IP protocol to transmit information, Provide

　　ICMP is an Internet Control Messaging Protocol (PROTOCOL). It is a child protocol of the TCP/IP protocol family that is used to pass control messages between IP hosts and routers. Control message refers to network communication, whether the host is up to, whether the route is available or not. Although these control messages do not transmit user data, they play an important role in the transfer of user data. 　　The function and characteristics of

In the analysis of the previous section, 3 questions were left: Before parsing the ICMP packet processing process, I have the following questions: 1. Why to create a socket for each CPU only to send ICMP messages, do not use the socket can also send ICMP messages out. 2. What is the working principle of ping? 3. What is the working principle of traceroute? 1, for

First, ICMP introduction The full name of ICMP is the Internet Control message Protocol (inter-Network Messaging protocol), an integral part of IP, used to provide error reporting. Once the various types of errors are found to return them to the original host, our most common ping command is based on ICMP. |-----------------------------------------| || ------

Linux original socket (2)-icmp request and receipt, linux-icmp I. Overview The previous arp request used the original socket of the link layer. Icmp is encapsulated in ip datagram, so icmp requests can directly use the original socket at the network layer, that is, the first parameter of socket () is PF_INET. As follow

Use ICMP tunneling technology for ICMP encapsulation and penetration Firewall 0x00 icmp Tunneling Technology ICMP tunneling technology, also known as Ping tunneling technology, we know that the ping protocol is icmp. When the firewall receives a protocol package, it is relea

these days have been studying the remote control Trojan some of the communication protocols, such as Tcp,udp,icmp,dns,http, and so on, for the tcp,udp of these two are not explained, because too common. Everyone may be the use of Icmp,dns Trojan is not very familiar with, in fact, the two protocols in the Trojan communication is very popular, characterized by relatively covert, not easily blocked. The HTTP

world Now that we have the full binary payload of our ICMP packet (STR (ICMP), we can send it out via a standard ICMP socket: s = socket.socket(socket.AF_INET, socket.SOCK_RAW, dpkt.ip.IP_PROTO_ICMP)s.connect(('74.125.67.100', 1))s.send(str(icmp)) Success! This completes our tutorial showing the construction of an

of 16, I am here to set the complement to a multiple of 32. After the end of AES encryption, the encrypted content is Base64 encoded for transmission.DecryptFirst, the encrypted content is Base64 decoded, followed by AES decryption, and finally removed in order to align the contents of the fill.The second section of the shell callThe basic function of the ICMP backdoor is to complete the shell call, which is often said to bounce the shell. The shell

ICMP is (Internet Control message Protocol) Internet controlled message protocol. It is a sub-protocol of the TCP/IP protocol family that is used to pass control messages between IP hosts and routers. The control message refers to the message that the network is not accessible, whether the host is available, whether the route is available, and so on. These control messages, while not transmitting user data, play an important role in the delivery of u

two bytes Countto = (len (packet)//2) * * count =0 while count 　　Section IIidentifier and serial number of the ICMP messageThe ICMP echo message (type = 8), which is requested by the host loopback response message (type = 0), has the following basic format:Loopback message [echo]Loopback response message [echo REPLY] Code = 0, Checksum for checksums, focusing on the end of the

I. Overview: 1. ICMP allows the host or route to report errors and provide relevant exceptions. ICMP is a standard protocol for the Internet, but ICMP is not a high-level protocol, but an IP layer protocol. Generally, ICMP packets are used by the IP layer or higher-level protocols (TCP or UDP. Some

label: SP Div art for using Ar data in style HTTP 一.概述： 1.ICMP同意主机或路由报告差错情况和提供有关异常情况。ICMP是因特网的标准协议，但ICMP不是高层协议，而是IP层的协议。通常ICMP报文被IP层或更高层协议（TCP或UDP）使用。一些ICMP报文把差错报文返回给用户进程。 2.ICMP报文作为IP层数据报的数据，加上数据报的首部，组成数据报发送出去。 3.

Swiss Army Knife protocol-ICMP ICMP protocol An important supplement to the IP protocol is the ICMP protocol. ICMP (Internet Control Message Protocol) is a Protocol between the network layer and the transport layer. Its main function is to transmit network diagnostic information.