En1 is in fact a wireless device. I'll try again with a wired one or with the 
tips from your link. Thanks



-- Sent from my Palm Pre
On Jun 14, 2010 12:58 PM, Aaron Turner <[email protected]> wrote:

On Sun, Jun 13, 2010 at 10:29 PM, Federico D. Sacerdoti

<[email protected]> wrote:

> Hi,

>

> This tool is exactly what I need to test a UDP-based monitoring

> daemon, however I am having trouble getting the OS kernel to accept

> replayed packets. I could not find a discussion on the README or FAQs,

> so I assume I'm just doing it wrong.

>

> Problem: my packet trace can be replayed, tcpdump shows it going out

> of the sender's interface just fine (the sender is OS X), but the

> receiving node does not receive them, i.e. tcpdump is silent (the

> receiver is Linux/Fedora 12 x86_64).

>

> A simple capture and replay of a 10-packet trace between the two hosts

> works fine. I can change the port using tcpreplay and it works fine as

> well. I have attached the trace that does not play correctly.

>

> I apply the tcprewrite command below, then send them. There are no

> errors in either. Somehow the kernel/network does not register the

> re-written packets as worthy of reaching the dst host. Hmm. Any help

> would be appreciated, I apologize if this report is vague.

>

I'm going to take a guess here...



en1 on OS X... that's not a wireless card is it?



http://tcpreplay.synfin.net/wiki/FAQ#CantcpreplaysendpacketsoverWiFi



If not, then send more information about your hardware and how the two

boxes are connected.



-Aaron





-- 

Aaron Turner

http://synfin.net/         Twitter: @synfinatic

http://tcpreplay.synfin.net/ - Pcap editing and replay tools for Unix & 
Windows

Those who would give up essential Liberty, to purchase a little temporary

Safety, deserve neither Liberty nor Safety.

    -- Benjamin Franklin

"carpe diem quam minimum credula postero"



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