topologymapping / mtraceroute Goto Github PK

When I use -h option, mtraceroute returns help information

Although structures defined in the packet crafting module enforce alignment of protocol's header fields, there may be problems with data alignment depending on the architecture when accessing fields in layer 3 and upper, for example if the packet buffer begins with an ethernet header (14 bytes)

On Ubuntu 12.04, -lrt is required to compile due to the utilisation of clock_gettime and autoconf does not specify it as a required library in the Makefiles

I compile it in Ubuntu 18.10 with:

• Linux kernel 4.20
• gcc 8.2.0
• libpcap 0.8

When I try to execute it I got a segmentation fault:

No packets were generated (I checked with wireshark).
I tried with all options (mda, ping, traceroute) and I got the same result

Match SYN-ACK and RST-ACK responses for TCP probes

Layer 4 headers are accessed in fixed positions. This can lead to problems depending on whether a response to a probe comes with IP options or has extension headers in the case of IPv6