Hello, In order to catch the content of an IP packet you should use a packet sniffer. The best for me is TCPDUMP, that you can find at http://www.tcpdump.org
> Dear All, > I'm using Linux Red Hat.I'm trying to learn more and more about TCP-IP. > I know how to set ipchains in order to list a packet from TCP-IP > traffic, but I want to find what Linux command or software tools enable > me to catch (and display)all the content of an IP packet. Sniffers !? > Thank you in advance ! >