wireshark

Force java web start to use a proxy like Fiddler without touching code

由 假如想象 提交于 2019-12-08 03:09:31
问题 For a automatic software project i need some requests and responses from a Java Web Start application. So i installed Fiddler Web Debugger and then i tried to use this fiddler proxy to sniff all requests. The problem is the Java Web Start application. I added this to the .jnlp file and hoped that it works... It doesnt! :( <property name="http.proxyHost" value="127.0.0.1"/> <property name="http.proxyPort" value="8888"/> The application would ignore it. Then i tried to set up the Java settings.

Scapy fails to send ipv6 packets

由 末鹿安然 提交于 2019-12-08 00:08:44
问题 Hello everyone i am new here so please be kind. I have been using scapy lately in order to send and recieve ipv6 packets to selected ipv6 enabled servers. The gist of the code is here: text = line[:-1] #destination=getIPv6Addr(line[:-1]) destination="2607:f1c0:1000:60e0:7992:97f7:61b2:2814" source="2001:630:d0:f105:5cfe:e988:421a:a7b7" syn = IPv6(dst=destination,src=source) / TCP(sport=555,dport=80,flags="S")#flag S is syn packet syn.show() syn_ack = sr1(syn,timeout=11) When i execute the

How to simulate network packet loss when streaming video?

由 杀马特。学长 韩版系。学妹 提交于 2019-12-07 23:27:21
问题 Please help me solve this tricky problem, making me suffering for almost one week. How to make streaming video suffering packet loss? Switch: Pica8 3290 Computer: core i7 2600, 8GB Link: 100Mps Streaming video : RTP (1080P、4K) I've already tried "iperf", "iperf3" and "Packeth" to generate UDP packets. However, these 3 sofwares seem to measure the residual capacity of the link first and then send the amount of the packets fit the capacity. E.g.: (No Video streaming) iperf send almost 100Mps

Designing an EAP-TLS client hello message

由 雨燕双飞 提交于 2019-12-07 19:10:32
问题 I am trying to design the first packet that initiates an EAP-TLS handshake. This is how my packet looks like currently: The EAP part I have designed by manually filling a buffer in C with the respective information. The TLS part I derived using OpenSSL as shown in this question. Then I went to the RFC and added the 4 octet length field and TLS flags in the packet. But wireshark refuses to accept it! I tried comparing the TLS data byte by byte to a TLS connection happening over TCP, and I can

How can I force wireshark to decipher some types of protocols if it doesn't recognize them (RTSP,RTP, RTCP)?

由 吃可爱长大的小学妹 提交于 2019-12-07 17:07:23
问题 I'm trying to implement RTSP protocol in Java according to http://www.csee.umbc.edu/~pmundur/courses/CMSC691C/lab5-kurose-ross.html example; I have succeed up to successful communication with VLC via RTSP requests and streaming RTP packets; RTP packets with JPEG payload are not recognized by VLC well; that's why I supposed I send malformed RTP. I sniffed them with wireshark and compared them with packets, sniffed from successfull RTSP communication of gstreamer RTSP streamer and VLc. I was

wireshark之使用

由 我与影子孤独终老i 提交于 2019-12-07 16:04:28
本文链接：https://blog.csdn.net/qq78069460/article/details/79153895 wireshark是非常流行的网络封包分析软件，功能十分强大。可以截取各种网络封包，显示网络封包的详细信息。使用wireshark的人必须了解网络协议，否则就看不懂wireshark了。 为了安全考虑，wireshark只能查看封包，而不能修改封包的内容，或者发送封包。 wireshark能获取HTTP，也能获取HTTPS，但是不能解密HTTPS，所以wireshark看不懂HTTPS中的内容，总结，如果是处理HTTP,HTTPS 还是用Fiddler, 其他协议比如TCP,UDP 就用wireshark. Wireshark(网络嗅探抓包工具) v1.4.9 中文版(包含中文手册+主界面的操作菜单) 评分: 6.0 类别： 远程监控 大小：22M 语言： 中文 查看详细信息 >> wireshark 开始抓包 开始界面 wireshark是捕获机器上的某一块网卡的网络包，当你的机器上有多块网卡的时候，你需要选择一个网卡。 点击Caputre->Interfaces.. 出现下面对话框，选择正确的网卡。然后点击"Start"按钮, 开始抓包 Wireshark 窗口介绍 WireShark 主要分为这几个界面 1. Display Filter(显示过滤器)

Scapy fails to send ipv6 packets

由 半城伤御伤魂 提交于 2019-12-06 14:03:16
Hello everyone i am new here so please be kind. I have been using scapy lately in order to send and recieve ipv6 packets to selected ipv6 enabled servers. The gist of the code is here: text = line[:-1] #destination=getIPv6Addr(line[:-1]) destination="2607:f1c0:1000:60e0:7992:97f7:61b2:2814" source="2001:630:d0:f105:5cfe:e988:421a:a7b7" syn = IPv6(dst=destination,src=source) / TCP(sport=555,dport=80,flags="S")#flag S is syn packet syn.show() syn_ack = sr1(syn,timeout=11) When i execute the code hoever this is what i get: Begin emission: Finished to send 1 packets. .................WARNING: No

Where did Wireshark/tcpdump/libpcap intercept packet inside Linux kernel?

由 ▼魔方 西西 提交于 2019-12-06 13:22:59
According to this , wireshark is able to get the packet before it is dropped (therefore I cannot get such packets by myself). And I'm still wondering the exact location in linux kernel for wireshark to fetch the packets. The answer goes as "On UN*Xes, it uses libpcap, which, on Linux, uses AF_PACKET sockets." Does anyone have more concrete example to use "AF_PACKET sockets"? If I understand wireshark correctly, the network interface card (NIC) will make a copy of all incoming packets and send it to a filter (berkeley packet filter) defined by the user. But where does this happen? Or am I wrong

Bluetooth Low Energy Notification Interval

由 本秂侑毒 提交于 2019-12-06 10:26:18
问题 I have a question regarding the bluetooth LE protocol. I have an Android Device and a peripheral device. Looking at the transmission with a sniffer and wireshark there is +/- every 40ms an empty PDU message. As I understood the protocol this means the connection interval those device chose is 40ms. For testing I am using a simple "UART" application where the android device enables the notification on an antribute of the peripheral device and gets notified whenever the attribute changes. Now,

How to simulate network packet loss when streaming video?

由 浪子不回头ぞ 提交于 2019-12-06 09:21:00
Please help me solve this tricky problem, making me suffering for almost one week. How to make streaming video suffering packet loss? Switch: Pica8 3290 Computer: core i7 2600, 8GB Link: 100Mps Streaming video : RTP (1080P、4K) I've already tried "iperf", "iperf3" and "Packeth" to generate UDP packets. However, these 3 sofwares seem to measure the residual capacity of the link first and then send the amount of the packets fit the capacity. E.g.: (No Video streaming) iperf send almost 100Mps (With video streaming) iperf only send almost 70Mbps Thus, these packet generator won't help me to make
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