Weird network-msgs in the ALT+CTRL+F1-6 commandlines

[Thomas Bitschnau]

Hi!

If I switch to a commandline via ALT+CTRL+F1-6-key-combination I get
packet-headers displayed reaching my PC.
They just appear on the screen and to not influence the comandline. They
are just visible.
Theres info displayed like TOS, TTL, DEST, SRC, PROTOCOL, and so on.
It's ab IP-Header. 

How can I get rid of it?
--
Thomas B.

What the large print giveth, the small print taketh away.