Ubuntu Networking :: How To Enable Packet Injection In Broadcom
Mar 18, 2011
enable packet injection on ubuntu. My card was perfectly running fine(though monitor mode and packet injection not working).I had got bcm-sta wireless drivers installed.
When i run lspci --nn command, i found out my driver to be as below::
Code:
Network controller [0280]: Broadcom Corporation Device [14e4:4727] (rev 01)
when i run " airmon-ng "
it displays
[Code].....
I need to get packet injection working desperately. Also , do i need to patch my drivers or something like that?
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Jan 30, 2010
I was playing around with Aircrack the other night, and trying to utilise the patches that would allow packet injection, but it wasn't working for me, so I rebooted. After that, though, my wireless card seems to have gone completely haywire. It doesn't show up at all in iwconfig. Before, I had 4 entries: lo, eth0, irda0, and eth1, which was the wireless. Now, only the first three show up. This is what it comes up as under lspci:
Code: 04:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01) I've tried a number of solutions I've found online, including doing a cold boot, reinstalling the driver (Broadcom STA) and starting up from a cold boot, and am now trying this approach. Nothing has worked, so far. I'm getting really desperate. I need my wireless working for university, which starts shortly, and I might even switch back to Windoze if there's no feasible solution.
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Apr 13, 2011
How can I enable wireless injection?
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May 14, 2009
I have the latest version of aircrack, and the latest compat-wireless package installed. When I try to inject I get this:
linux08:/usr/local/sbin # ./aireplay-ng -9 wlan0
16:46:33 Trying broadcast probe requests...
16:46:35 No Answer...
16:46:35 Found 0 APs
I know for a fact that there are 2 AP's. This worked perfectly with my old laptop with a D-link PCMCIA card.
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Nov 5, 2010
I am running wireshark on my laptop. It is only showing me the packets addressed to and from it, and broadcast packets. I am running it in promiscuas mode, and in iwconfig set the interface to mode monitor. However it can still not see packets from my other laptop. They are in the same room, both wirelessly connected to the same network.
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Jul 12, 2010
I am the new user to ns-2. I would like to know is it possible to send the keys or some value as the packet data (content of the packet) in ns-2 (for wireless environment).
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Apr 29, 2011
how to patch it. but the problem is, I can't find a working download link.
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Feb 4, 2011
The Linux-phc kernel, available here, for 10.04, used to work fine for me, but starting awhile ago, it broke the wifi. I can't enable the broadcom driver, it says, installation of this driver failed. Please have a look at the log file for details: /var/log/jockey.log
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Apr 14, 2010
i would really like to know how to patch a wireless card driver so that i can start injection in aircrack for example let's say we have an "Atheros AR5007EG" do you know where to find the driver patch for ubuntu and how to patch it ?
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Sep 17, 2009
I got a problem with my CentOS server. Somebody told me OpenVPN Requires different changes inside my firewall settings. That could be the problem why openvpn wont load..I receive this error on my CentOS panel when im trying to connect into the centos openvpn (with my winxp pc):
Thu Sep 17 20:31:36 2009 TLS Error: incoming packet authentication failed from 84.xx.62.122:2622
Thu Sep 17 20:31:38 2009 Authenticate/Decrypt packet error: packet HMAC authentication failed
Thu Sep 17 20:31:38 2009 TLS Error: incoming packet authentication failed from 84.xx.62.122:2622
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Apr 9, 2010
I have 3 Dell Precision M4400 machines. After getting updates yesterday or today, I get random network dropouts like crazy, on wired or wireless. On one machine I was able to turn off ipv6 in grub and reboot, and it works now. However on the other 2 machines, still have the same problems. All 3 are running 9.10 64 bit. Is there a way I can back out the updates so the network works again? Anyone else see this behavior after updates today?
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Jan 25, 2011
I am in a hub(with switches and rooters) and i want to spy what packets everyone receives! if can i do this and if i can which tools i can use?
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May 29, 2010
I am just starting my adventure into Ubuntu. After installing and configuring Shrew Soft in Ubuntu 10.04 64Bit, I am having some serious packet loss issues. The LAN is wireless, however the only packet loss I experience is over the tunnels. I have tried different algorithms, and it seems as I fiddle with the MTU client side, it clears a bit, but the best I have managed is 23% loss average.
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Aug 19, 2010
I am trying to simply address translate TCP packets from one destination IP to another destination IP (DNAT?) without getting the initial SYN packet. Is this possible? I do not think it is with DNAT since the conntrack needs SYN first.
I have given the command:
The problem is that the first packet that matches this rule will be the SYN-ACK and I suspect it is simply DROPPED.
I am sparing you the gory details of why I would do such a silly thing, but simply put; I need to intercept client-to-server packets through a tunnel, but allow server-to-client packets to follow through the regular network.
I have been working on this for many days w/o success and my learning curve is still steep. I can provide more details as needed.
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May 19, 2010
My question is about the raw MX reply package structure. I've read the RFC and all relevant pages I could find, but I couldn't figure this one out. Say we do a google.com MX query.
The first answer (just the rdata part) will be: google.com.s9b2.psmtb.com But in the raw package, instead of the .com, you have c0 13. Then for the second answer, google.com.s9b1.psmtb.com, the raw package has, instead of psmtb.com, just c0 3a. So is the part after c0 a pointer towards another part of the message? Or what does it stand for exactly? I am puzzled by it, and don't know exactly where to ask... some of the networking people here might have a good idea.
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Jan 11, 2011
From all the stuff that can enter an interface, how does it know when an IP packet has been *formed*? What if it's just random garbage entering there for whatever reason? Also, can Linux do other protocols besides TCP/IP? This would be the problem, as I said above.
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Jul 28, 2011
In application udp port listening with 3330 i am sending udp request from port 0.0.0.0:3330 to 0.0.0.0:3330 that is same port in the same machine....application works fine udp sending and receiving also fine.....for clarification ....is there any conflicts in the communication ?
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Feb 23, 2010
I manage a small home network of 5-6 PCs and other devices. One of the PCs is used as a multipurpose server, as well as the gateway to outside.
Sometimes, I need to know what traffic goes in/out of my network (for troubleshooting, etc).
Is there a quick and dirty way to forward a copy of all the packets on the external interface to my own ip when I want to?
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May 5, 2010
I got a new X201 which is running Ubuntu 10.04. While at home, everything is fine, at work, I encounter some issues with wireless. the signal cuts in and out repeatedly.Here's the output of ping. I set it to ping a server every 90 seconds, 10 times. So this is a snapshot of 15 minutes of network activity...
Code:
PING (REDACTED) bytes of data.
64 bytes from (REDACTED): icmp_seq=1 ttl=252 time=1.50 ms
64 bytes from (REDACTED): icmp_seq=2 ttl=252 time=2.13 ms
64 bytes from (REDACTED): icmp_seq=3 ttl=252 time=1.38 ms
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Also I tried this (from a 2 year old thread which was most relevant solution I could find):
Code:
Changing AVAHI_DAEMON_DETECT_LOCAL=1 to AVAHI_DAEMON_DETECT_LOCAL=0 in /etc/default/avahi-daemon has got rid of the irritating pop-up. Basically, every 5 minutes or so, for a solid 60 seconds or so I get no signal. I've tried updating the kernel, and doing apt-get remove avant-daemon, but still have problems.
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May 29, 2010
Does ubuntu have anything similar to window's program Cain & Abel for wireless packet capture?
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Aug 15, 2010
I would like to pose is very specific to a system I'm assembling. I have ask for assistance from other forums and people, however the answers receive were too vague to implement.
As for my background, I am a network user able to write TCP Linux client/server applications quite easily. At a Linux system level I do not understand the necessary combination of applications and services to affect the following;
Network components;
- WiFi access point/router with four ethernet ports
- Laptop (user computer) cabled directly into the access point via a physical cable
- Second computer running Ubuntu 10.04, with one WiFi (wlan0) and one ethernet (eth0) interface. Eth0 is configured as a DHCP server with the following;
IPaddress 192.168.252.1
broadcast 255.255.255.0
Eth0 is physically connected to an IP camera via a Cross-over cable. The camera is configured as a DHCP client. This connection works perfectly from the Linux box with a KVM attached.
Wlan0 is connected wirelessly to the access point and the Laptop can access the Linux box and vice versa.
My objective is to have the
- Laptop via the access point/router connect directly to the IP camera on the Linux box via the wireless link.
- I would prefer not to make any configuration or routing changes/entries on the access point/router.
The type of response I'm looking for;
- is this possible at a macro level
- what facilities/server are required on the Linux box (I would like all configuration applied to this computer only)
- what commands need to be executed and in what order. If possible a brief explanation of why the command is needed and where it fits in the grand scheme of the solution.
This is probably a gigantic request outside what the forum usual activity.
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Feb 7, 2010
I have a machine with two network cards running linux mint 8 XFCE (which is compatable with Ubuntu Intrepid Ibex). eth0 gos out onto the network propper, has a static IP address of 10.10.10.10 and serves DHCP requests for the 10.10.10.x subnet.
eth1 is pluged into a PPPoE concentrator, and has a static address of 192.168.0.1 (I would have left it alone but pppoeconf wouldn't work unless it had an address).
ppp0 is the piont to piont over ethernet conection that is corectly created when I run pon. I have both guard dog and guide dog installed but they are both disabled.
Now, the weird part: I can ping the IP number of the machine at the other end of the pppoe conection (when it changes I can still ping the new number), the local IPs (10.10.10.x), but *nothing* else not even the DNS servers passed to the machine during ppp conection which are in the same sub net as the machine I can ping.
When I try to ping or trace the route I get an error message like: reply from 10.10.10.10: desination unreachable There is nothing wrong with the network at the other end, as I can make an Identical PPPoE connection from other machines on the network if the the concentrator is pluged into the hub (a rather unsafe place for it to be) and it all just falls into place.
What seems to be happening is that the machine is treating eth0 rather than ppp0 as the internet gateway, and passing the packets round in circles.
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Feb 27, 2010
I wrote a program for transmitting an UDP Packet. It is properly received in Fedora core 2 machine while its not received properly in Fedora 12. I tried using Wireshack packet capture software which shows the protocol as DIS. Is there any service or setting i need to do for identifying the packet as UDP.
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Dec 1, 2010
how to identify the icmp packets & marking. this below icmp packets marking is not working.
iptables -t mangle -A PREROUTING -p icmp -j MARK --set-mark 0x5
iptables -t mangle -A PREROUTING -p icmp -j RETURN
with the help of port no or any other how can i identify the icmp packet ?... This below two is working fine
iptables -t mangle -A PREROUTING -p tcp -j MARK --set-mark 0x2
iptables -t mangle -A PREROUTING -p tcp -j RETURN
iptables -t mangle -A PREROUTING -p udp -j MARK --set-mark 0x3
iptables -t mangle -A PREROUTING -p udp -j RETURN
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Jun 24, 2011
I need to know how a data packet is transmitted from the sender to the receiver passing through the five Internet layers. Specially what device (hardware) the data packets have to pass through at each layer before reaching the destination in a LAN.
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Jun 16, 2010
How can i send udp packet to the DNS using netcat in opensuse.
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Jun 23, 2010
I am simulating a TCP/FTP to TCP/FTP network and trying to monitor the packet loss.
I am able to monitor and graph data regarding the TCPSinks' bytes received, but I can't monitor packet loss.
Why is it that the TCPSink Agent has a variable for bytes (bytes_) but not one for monitoring packet loss?
Do I have to monitor the packet loss from the queue? If so, how do I write code for this?
Below is part of the code for monitoring bytes received from sinks if anyone was interested.
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May 4, 2011
I have 2 Ubuntu boxes sitting in the same subnet; server 1 [130.15.6.68] and server 2 [130.15.6.69] What I am trying to achieve here is the following: server 1 act as a gateway or proxy to server 2, meaning that server 1 is exposed to the Internet and all traffic to server 2 should go though it (i hope!).
server 2 act as application server and I don't want a direct access to it from the internet. I want all the inbound traffic comes through server 1. for testing purposes, i will limit the traffic to simple http or port 80
in server 1, i have done the following settings: iptables -t nat -A PREROUTING -p tcp -i eth0 -d 130.15.6.68 --dport 80 -j DNAT --to 130.15.6.69:80 iptables -A FORWARD -p tcp -i eth0 -d 130.15.6.69 --dport 80 -j ACCEPT In server 1, I've edited the value of net.ipv4.ip_forward to equal 1 (uncomment that line in /etc/sysctl.conf) Currently, both server 1 and server 2 has its own apache2 servers with different index.html files. the problem is, when i browse to server 1, I am still seeing its index page rather than being forwarded to the index page of server 2. how can i achieve the traffic forwarding from server 1 to server 2 when my browser pointing to server 1?
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Nov 19, 2010
I have to interfaces eth0(10.0.0.7) and wlan1(10.0.0.8) in my box. An application is listening (say, udp socket) at 10.0.0.7:5888.
Now if someone sends packet at 10.0.0.8:5888, I want to forward them to 10.0.0.7:5888.
I have tried this - iptables -t nat -A PREROUTING -p udp --dport 5888 -d 10.0.0.8 -j DNAT --to-destination 10.0.0.7
But Packets(with destination addr 10.0.0.8) are not received by the application (But they are received by the box, I have checked using wireshark). I have also enabled ip_forwarding.
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Jun 29, 2011
Code:
Internet ---> Tap A--> Traffic Monitor
B--> Firewall --> Internal Network
I was hoping to make a server with Windows and "Colasoft Capsa" to capture and record all traffic. Is there a way to make it unaddressable so that I don't have to worry about someone getting into it? Like, put it in promiscuous mode, read and capture all traffic, without having an IP address or something like that?
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