{| border="1" cellpadding="2"
|-
! Caldrin
! Alien8
|-
| ICMP-Tunnel
| Firewall Intro (Ausarbeitung, Vortrag zusammen)
|-
| hiding stuff in ip headers (incl. stegtunnel)
| ip and ssh tunnel
|-
|-
| http-header
| http,https,
|-
| open connections from outside
| DNS-tunnel (mit Verweis auf DNS-Vortrag)
|-
|
| ACK tunnel
|}

= Contents =

* short Intro to Firewalls
** is a concept
** Packetfilter
*** stateless
*** stateful
*** NAT (IP header recalculation, CRC checks ...)
** Application Layer Gateway

* Basics
* nc / cryptcat
* the art of hiding (backpacking your data) 
** Tunnel
*** ip tunnel (incl. Why TCP over TCP is a bad idea)
*** ssh tunnel

* Simple Examples of tunnel

** HTTPS-Tunnel (connect)
** Http-Tunnel (GET / POST)
** Web-Shell

* Advanced Examples
** HTTP header
** ICMP-Tunnel
** DNS-Tunnel
** hiding stuff in ip headers
** different networking protocols
** E-Mail tunnel
** ACK-Tunnel
** [[http://www.synacklabs.net/projects/stegtunnel/ Stegtunnel]]

* opening connections from outside
** send IP with IP/port into protected net (ping) => pinged host opens connection out
** guessing Syncookies 

more to come ...

=Storyline=
== Introduction ==
* Welcome ... Thanx for comming ... In Aug we did TA for c3d2 about Firewalls, Got interested in that topic or some joke
* What is a firewall?
** Packetfilter
*** stateless
*** stateful
*** NAT (IP header recalculation, CRC checks ...)
** Application Layer Gateway
''' If you believe in those systems giving you the perfect protection: Don't waste your time! Good bye!''' 
* What we are going to show:
** '' To circumvent firewalls one has to be creative ... find a hole in the set-up, exploit it! Enjoy!''
** We show you: 
*** Don't expect a cook book!
*** We're going to show some basic techniques and tools
*** some examples will show how to use them