Hi.
Regarding the following issue with the loopback, is there a work around for
linux. I used tcpreplay to replay the multicast data captured with tcpdump to
'lo' but my app does not see the data while tcpdump does. Thoughts? Thanks.
Why doesn't my application see packets replayed over loopback?ΒΆ
Most users are surprised when they try replaying UDP traffic over
loopback that the listening daemon never sees the traffic. This turns
out to be a limitation of the loopback interface on many operating
systems. One contributing factor may be capturing traffic on an
ethernet port, rewriting the IP addresses but not the L2 header. Since
the loopback interface doesn't use an ethernet L2 header, the IP stack
of the operating system is unable to parse the packet and deliver it to
the listening daemon.
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