Covert Channel: ASCII Art Over ICMP

An anonymous reader writes "Have you ever had a particularly lossy Cisco ping, which you were sure was trying to tell you something? I mean, really *tell* you something. Echoart allows you to return a simple ascii art image in response to a Cisco-style ping."

Comments

mirror

[whizkid042]

this server seems to be quite slow ... here is a mirror

http://www.unixauthority.com/~fiskeja/mirror/mirro r1.internap.com/echoart/

Re:Ascii art programs out there?

[Anonymous Coward]

google query

Have a look.

Building the art

[Derek Mason]

This looks neat - but it would help if there was a way to build the ASCII art from text within the program. In the meantime Email Effects will do the trick very nicely.

Re:Cisco-style ping?

[Eshelbyk]

It's not so much the ping itself, rather how the results are displayed on a Cisco IOS device when you issue a ping command. Bangs and dots.

Re:Oh, great

[nervous_twitch]

Tell me, if my computer silently drops all unsolicited incoming data, how do you tell it's there?

If a host is not found on the network, the nearest router is expected to send an ICMP "Host Unreachable" message to the sender.