At 12:30 PM 1/25/2005 +0530, Muruganandam wrote:
Hi all,
How to enable the Promiscus mode in the kernel,inorder to capture the packets.Advance Thanks
It would be easier to answer this question if I better understood the level you are asking it at.
The beginner-level answer to it is to use an application and associated library (e.g, tcpdump or ethereal, and libpcap) that supports setting promiscuous mode.
For the details of how to set it in a NIC driver, I'd suggest referring to the source for libpcap; my quick scan of it leads me to suggest checking the pcap_open_live() function call.
Of course, you need root access to do any of this.
And it may not work if you have some obscure hardware - all the common Ethernet drivers and chipsets support promiscuous mode, but some of the older boards and embedded chips may suprise you.
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