Sending a packet to localhost?

[Oliver Zheng <mailinglists+tcpdump () oliverzheng com>]

Hi,

Is it possible to send a packet to localhost and have the application
receive it? On Linux, there is (at least) lo and eth0. I tried sending
a TCP packet to both lo and eth0, however, it seems like the Linux
TCP/IP stack and application do not receive the packet. The exact same
packet works on Windows (with WinPcap). Is this not possible?

Thanks,
Oliver
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