Category Archives: Network

BNAT

BNAT stands for “Broken NAT“. In the scope of Jonathan Claudius work, a NAT is considered broken when the client receives a reply from a server behind a NAT with a different IP than the one it sent the request to. It happens with bad implementations where the DNAT (destination NAT) and the SNAT (source NAT) use [...]

Network virtualization and the DMZ paradigm

The virtualization buzz I have recently worked on network virtualization. Many people, especially the network guys, have been recently excited with the VMware Vswitch or Cisco Nexus stuff.  It is something that I understand because virtualization is cool. It brings many convenient features that truly make the life easier. But what about the security? Convenience [...]

Consider learning LISP

No, not the infamous programming language! But LISP as Location/Identifier Separation Protocol. (I know I am repeating the joke everyone does but I couldn’t help). But what is it about? It is actually at first difficult to conceive, as we are all so used that IP addresses identify both a person (or a company) and [...]

Netios 0.76

Netios 0.76 is out! Complete changelog : 2010-07-13  (0.76) Jean-Christophe Baptiste <jc@phocean.net> * fix prompt for enable issue * fix issue with log directory * add timeout option * remove fail check for password mode (source of confusion and not so useful on second thought) Check there for more details and a download link.

Netios 0.75

Netios 0.75 is out. Complete changelog : 2010-04-24  (0.75) Jean-Christophe Baptiste <jc@phocean.net> * always force to specify the user to update and remove useless options concerning tacacs and newuser mode Check there for more details and a download link.

Netios 0.74

Netios 0.74 is out. Complete changelog : 2010-04-08  (0.74) Jean-Christophe Baptiste <jc@phocean.net> * improve logging and  error handling * clean up some crapy code Check there for more details and a download link.

Packetlife.net

I added a new link to Packetlife.net, which is a really amazing website about networking, with focus on Cisco stuff. The work that the author made is truly impressive : blog, cheat sheets, gentle forum and even a lab (I haven’t test because I don’t need it, but if you are a student, it is [...]

Netios 0.73

Netios 0.73 fixes some bugs and Complete changelog : 2010-02-10  (0.73) Jean-Christophe Baptiste <jc@phocean.net> * remove useless options * fix various bugs Check there (tools page) for more details and a download link.