appneta / tcpreplay

Pcap editing and replay tools for *NIX and Windows - Users please download source from
http://tcpreplay.appneta.com/wiki/installation.html#downloads
1.17k stars 268 forks source link

Warning: Unable to process unsupported DLT type: Ethernet (0x1) #835

Closed KatherineJXY closed 3 months ago

KatherineJXY commented 9 months ago

I was trying to replay the packets using the tcpreplay tool and got an error: "Warning: Unable to process unsupported DLT type: Ethernet (0x1)." tcpreplay version: 4.4.3 Pcap file: https://pages.cs.wisc.edu/~tbenson/IMC_DATA/univ1_trace.tgz Any clues?

fklassen commented 3 months ago

Your captures are full of malformed packets. Tcpreplay is simply dropping the invalid ones. found some packets in trace that are wrongly flagged as bad packets. I'll fix those, but other packets in this trace are just bad.

image
fklassen commented 3 months ago

After more review, determined that some EtherType I packets are wrongly flagged as as bad. For example, packet #114 in test.pcap.

fklassen commented 3 months ago

Fixed in PR #880