07-06-2010
packet capture
can anyone tell me how can i capture the packets. i have tried ethernet software to capture them but its not doing what i want it to do it
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Hi,
Is there any way that i can directly take out the IP packet and see its contents.
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I have made an packet capture application running on intel machine, it is capturing packets with src address- 17.0.0.0 destination ip- 66.0.0.0, source port- 0, destination port- 0, and protocol- 0 what does these packets mean ?
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LEARN ABOUT MOJAVE
pcap_create
PCAP_CREATE(3PCAP) PCAP_CREATE(3PCAP)
NAME
pcap_create - create a live capture handle
SYNOPSIS
#include <pcap/pcap.h>
char errbuf[PCAP_ERRBUF_SIZE];
pcap_t *pcap_create(const char *source, char *errbuf);
DESCRIPTION
pcap_create() is used to create a packet capture handle to look at packets on the network. source is a string that specifies the network
device to open; on Linux systems with 2.2 or later kernels, a source argument of "any" or NULL can be used to capture packets from all
interfaces.
On Darwin systems version 13 or later, a source argument of "all" or "any" can be used to capture packets from all interfaces. A source
argument of NULL can be used to capture packets from all physical interfaces, i.e. excluding loopback, virtual and tunnel interfaces.
The returned handle must be activated with pcap_activate() before packets can be captured with it; options for the capture, such as promis-
cuous mode, can be set on the handle before activating it.
RETURN VALUE
pcap_create() returns a pcap_t * on success and NULL on failure. If NULL is returned, errbuf is filled in with an appropriate error mes-
sage. errbuf is assumed to be able to hold at least PCAP_ERRBUF_SIZE chars.
SEE ALSO
pcap(3PCAP), pcap_activate(3PCAP)
3 January 2014 PCAP_CREATE(3PCAP)