| Carl Johnson on 7 Jan 2012 08:19:02 -0800 |
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| Re: [PLUG] Need Help with TCPDump |
One other simple oversight that's a possibility.... do you have iptables running maybe? Sent from my Motorola DynaTAC 8000x Bill East <wm.east@gmail.com> wrote: >On Sat, Jan 7, 2012 at 10:41 AM, <MailList@nerdworld.org> wrote: > >> I bought one of those goofy internet clocks >(http://www.myixp3.com/home/) >> and >> despite a few problems, have been able to get my messages sent to it >via >> the >> company's web page or eMail. >> >> However, being one who will never leave anything working alone (I >have an >> unsatisfiable desire to "improve" things! <grin>), I want to hack >this >> little >> bad boy. >> >> I have not found anything published on the protocol for the clock, so >I >> thought I'd just sniff the network stream and figure out what it's >doing. >> I >> can tell from my DHCP server that it's getting a lease at >192.168.1.200. I >> therefore tried this command on my firewall. >> >> tcpdump -i eth1 host 192.168.1.200 >> >> I then used the web page to successfully send a message to the clock. >> >> Oddly, I'm not getting anything recorded by tcpdump. If I drop the >host >> portion and just grab everything, the address of the clock never >shows up. >> > >I'm fairly certain that if your interface is not in promiscuous mode it >will not record traffic passing through, even on that specific >interface. > >ifconfig eth1 promisc should do it for you, but I'm saying that from >memory. >___________________________________________________________________________ >Philadelphia Linux Users Group -- >http://www.phillylinux.org >Announcements - >http://lists.phillylinux.org/mailman/listinfo/plug-announce >General Discussion -- >http://lists.phillylinux.org/mailman/listinfo/plug ___________________________________________________________________________ Philadelphia Linux Users Group -- http://www.phillylinux.org Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug