Hi,

I've written a kernel module that logs all socket connection attempts. That is done with the help of LSM hooks. What I can see now is that the kernel is connecting to some 100. and 101. ip addresses many times:

...
socket_connect: 1.0.0.0:0 -> 100.119.112.45:106
socket_connect: 1.0.0.0:0 -> 101.118.47.115:12132
...

What is the source ip 1.0.0.0? All other user initiated connections (e.g. browser) have the ip address 0.0.0.0. Some times with zero or non-zero port. And where do these 100./101. addresses end? I assume that this are in-kernel sockets used for IPC but I'm not sure.

A user initiated connection looks as follows:

...
socket_connect: 0.0.0.0:43659 -> 10.0.2.3:53 //DNS
socket_connect: 0.0.0.0:0-> 74.125.77.95:0 // Src-Port and Dst-Port are 0?
...

Thanks
Yves

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