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1answer
71 views

Packets don't come back in a network with NAT in Cisco Packet Tracer

This is my network: I have done my best to try to solve the problem, but with no success. Whenever packets come from LAN 1 or LAN 3, the local IP addresses are translated into one of the 3 public ...
0
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1answer
127 views

Packet Loss/High Ping with One Computer Seems to Affect Entire Network

I'm having an issue with my PC. I have a wireless router/modem combo box that was provided by my ISP and am having issues with a single PC on my network. The PC is connected via WIFI and often will ...
0
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1answer
434 views

cannot capture packets on wireshark without internet

I am using Wireshark on my Windows 8.1 Pro 32-bit pa and whenever I start Wireshark without internet, it can't capture ant packets. But when I am connected to the internet, it captures packets form ...
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1answer
769 views

Remote Packet Capture using Wireshark

Well The scenario is that I have a Windows machine(at home) and a Linux box running headless Ubuntu server(without GUI) on a remote location. I got Wireshark installed on my windows machine, and ...
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1answer
752 views

Iptables mark incoming packet - vpn routing

I have connected my home to my workplace for out of house backup reasons through OpenVPN. The connection is working nicely. At work I have 5 fixed IP addresses. Now I would like to assign one of ...
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1answer
1k views

See file size on wireshark when downloading

Is there a way to see the filesize of a file when starting a download through wireshark? I want to see the size of http downloads on wireshark when i start them but i cant find that information.
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1answer
766 views

How can i connect 2 PC with different subnets in 1 Switch in 1 Router

Well here is the problem...I want to connect 2 PC pc_1: 10.1.1.18/29 pc_2: 10.1.1.66/29 with 1 switch pc_1 -> Switch Fa0/1 pc_2 -> Switch Fa0/2 and this switch to a router ...
0
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1answer
392 views

Intercept and Edit Packets over a Network Bridge

I've been looking around for a way to intercept a packet as it comes into my main pc, edit it, and then let it continue it's journey to the device bridges though my pc. I've tried writing a c# app to ...
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1answer
68 views

How to transfer packets from ethernet card to another ethernet card

I have a desktop with two ethernet(etho,eth1) cards and OSSIM installed in it. I have a laptop with webmin installed, where i want to write rules for transferring packets from eth1 to eth0. Both the ...
0
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1answer
917 views

Check how many packets are being received by each interface/computer on the network

Is there a way I can check via terminal or command line how many packets are being received by each interface/computer on the network? I want to check which PC is downloading a large amount of data.
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1answer
229 views

Troubleshooting timeout and login problem, data transfer logging

I can't use gmail or Google log-in enabled openAuth from my browser in Ubuntu, but the same computer (It is a dual boot) works fine for everything in Windows. I connect through a Dynex router, and a ...
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1answer
843 views

Network packet editor for Linux?

Anyone know network packet editor for Linux, or a way to modify network packets in wireshark?
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votes
1answer
93 views

Modify a packet's content on DD-WRT

I need to modify incoming data to my network. Specifically, I want to modify all responses from a specific internet site so it doesn't show a certain HTML element. Is this possible with DD-WRT/...
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votes
1answer
128 views

ISP broadband user Authentication

How does an ISP authenticate a broadband user via its radius server or any other methods. Will it would be possible for me to locate this server eg- packet capture,by halfbridge mode, ip tracert? Is ...
2
votes
0answers
166 views

What is the full process of a client downloading a torrent file?

I'm attempting to write a torrent client, and while the unofficial specification is quite helpful on a technical level, I would like an explanation of the process of downloading a torrent file (...
2
votes
0answers
351 views

Modify incoming packets before forwarding in Linux

I’m using a Linux (Debian based) system on which IP forwarding is enabled (/proc/sys/net/ipv4/ip_forward is set to 1). I can read the incoming packets using a raw sockets program, but I want to modify ...
2
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0answers
1k views

Drivers for packet injection on the Intel Centrino(R) Advanced N 6205

I have an Intel Centrino(R) Advanced N 6205, running BackTrack 5 in VMWare. I'm having trouble following the tutorial on aircrack-ng website, and I need to know what drivers to download to support ...
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0answers
37 views

How to prevent Continuous ACK packets to my server

I found my server got continuous ACK packets from different sites, never stop, like below(I used tcpdump to capture) the remote sites use https. contains akamai, amazon..etc, which should be legit. ...
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0answers
104 views

Can we send and receive uTorrent packets through TOR?

I just started using pcapy python module to capture network packets. Is it possible to capture packets going out from uTorrent (on my own machine) with pcapy or scapy and sending them over the TOR ...
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0answers
11 views

100% packet loss tethering at&t Samsung phone with pda net

so I have a problem with 100% packet loss tethering my unlimited data plan with pda net to my computer, where I share my internet with my xbox as well, and have the same result through Xbox live. I ...
0
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0answers
26 views

How to Make a Portable Internet USB Device with Wifi Capability to Send all the data first to some particular device and then to other clients?

I have a portable internet USB device which can also throw wifi signals. All type of clients are usually connected to this device through wifi including PCs and Android devices. Is there any way that ...
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0answers
14 views

How to detect packet with specific “Total Length” or “Header Length” using Snort?

I'm using Snort to tutorial purposes. As you may know, it brings different rules available for the user to detect different types of transmission packets. The question is that I don't find any ...
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0answers
80 views

Duplicate packets with a bridged virtualbox

I have a virtualbox with 64-bit Ubuntu bridged with one of my interfaces on PC. The virtualbox VM has a router software Quagga and I'd like to have it as my OSPF router. However, the virtualbox VM ...
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0answers
75 views

Reading packets with Wireshark

How do I read packets captured with Wireshark. I was finally able to capture incoming and outgoing data in hopes of developing something along the lines of an IDS. Thanks in advance for the help. A ...
0
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0answers
63 views

What is the right procedure to check where my packet loss comes from?

I installed a new ADSL line and on my desktop I'm using a WIFI usb pen to receive the signal from my modem (Netgear DGN2200v4). I took some speed tests and ping tests and I noticed that I have an ...
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0answers
137 views

How to send packet on tor network to get back to my computer?

Can anyone tell me how to configure system (I think Linux is the best option for this) to be able to send packet by Tor Network back to my own computer? I have to conduct research on how it behaves (I ...
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0answers
3k views

Old Look@LAN software gives “No packet to read” log error; then won't ping

Yes, before anyone asks the question, I'm still using Look@LAN. It's the best free network discovery and resources program I've seen (but please, if you have suggestions for newer ones, let me know). ...