If you know the exact MAC where things should go then you can use EtherEncap as suggested; however, if you don't, then you can use ARPQuerier.
Seth Hall wrote: > I believe that unstrip should do what you want if you want the > original ethernet header put back. > http://read.cs.ucla.edu/click/elements/unstrip > > You can build your own ethernet header with etherencap. > > .Seth > > On Oct 25, 2007, at 2:12 PM, Daniel McBrearty wrote: > >> Thanks Roman. I was starting to suspect this. I guess the same applies >> to other modules that expect IP packets. >> >> Next question : when you are done processing the raw IP, how do you >> put an ethernet header back on, prior to the Queue() -> ToDevice() >> combination? >> >> cheers >> >> On 10/25/07, Roman Chertov <[EMAIL PROTECTED]> wrote: >>> Daniel McBrearty wrote: >>>> Hi >>>> >>>> Have been playing around with this great piece of software for a few >>>> days. Had some success with it, but one thing seems to cause some >>>> trouble. >>>> >>>> I seem not to be understanding something basic about how many >>>> elements >>>> handle IP headers. >>>> >>>> For instance, if I have a config like this : >>>> >>>> ipc IPClassifier( ip proto udp, - ); >>>> FromDevice( etho, PROMISC true ) -> ipc; >>>> ipc[0] -> Queue() -> ToDevice( eth1 ); >>>> ipc[1] -> Discard(); >>>> >>>> Now, I run this in user mode, and send it a few hundred RTP packets. >>>> It core dumps. The core dump goes if I remove ipc. >>> It core dumps because it is trying to read IP headers from where >>> Ethernet headers are. You need to use a classifier first and then >>> strip >>> 14 bytes before you can send packets to the IPClassifier. >>> >>> Roman >>> >>>> Other problems I have had have been trying to use SetIPAddress( >>>> 1.2.3.4, dst ) in such a config, but the ip appears unchanged in >>>> wireshark. >>>> >>>> Do these IP based elements expect the ethernet header to be stripped >>>> off, or explicitly told the position relative to the start of an >>>> ethernet header? I seem to remember seeing something like this >>>> when I >>>> started reading the docs ... but I can't find that now. >>>> >>>> thanks >>>> >>>> Daniel >>>> _______________________________________________ >>>> click mailing list >>>> click@amsterdam.lcs.mit.edu >>>> https://amsterdam.lcs.mit.edu/mailman/listinfo/click >>>> >> >> -- >> Daniel McBrearty >> email : danielmcbrearty at gmail.com >> http://www.engoi.com >> http://danmcb.vox.com >> http://danmcb.blogger.com >> find me on linkedin and facebook >> BTW : 0873928131 >> _______________________________________________ >> click mailing list >> click@amsterdam.lcs.mit.edu >> https://amsterdam.lcs.mit.edu/mailman/listinfo/click > > --- > Seth Hall > Network Security - Office of the CIO > The Ohio State University > Phone: 614-292-9721 > > > > _______________________________________________ > click mailing list > click@amsterdam.lcs.mit.edu > https://amsterdam.lcs.mit.edu/mailman/listinfo/click > _______________________________________________ click mailing list click@amsterdam.lcs.mit.edu https://amsterdam.lcs.mit.edu/mailman/listinfo/click
