$c->tag did it, thanks :)
it is quite annoying, that the script only works on Mac running Yellow Dog Linux, not on PC or my another OS X machine, the hex dump is like this:
src ip:0xc0a80101
dst ip:0xc0a80102
query:
  0x0000 : ED AC EF 0D 01 00 00 00 78 56 34 12 01 01 A8 C0 : ........x
+V4.....
  0x0010 : 02 01 A8 C0 00 00 BB 01                         : ........
response:
  0x0000 : ED AC EF 0D 78 56 34 12 02 00 00 00 00 00 00 00 : ....xV4..
+.......
  0x0010 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : .........
+.......
  0x0020 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : .........
+.......
  0x0030 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : .........
+.......
  0x0040 : 00 00 00 00 00 FF 00 00 00 00 00 00 00 00 00 00 : .........
+.......
  0x0050 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : .........
+.......
  0x0060 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : .........
+.......
  0x0070 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : .........
+.......
  0x0080 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : .........
+.......
This connection is not (no longer?) in the cache.

[download]

The pack did pack src, dst ip into query , but response always says no connection, I did adjust the bigendian to little endian on PC. Is Perl really not good at this low level packet handling things?

In reply to Re^18: p0fq.pl and pack by macli
in thread p0fq.pl and pack? by macli

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