#Cisco packet tracer activity how to#
#Cisco packet tracer activity full#
#Cisco packet tracer activity software#
#Cisco packet tracer activity code#

It is not a substitute for working on real equipment and it does not always respond or work exactly like the real equipment so it's important that you do your labs and practice on real equipment.

#Cisco packet tracer activity software#

While doing this I kept a bunch of notes so I can turn them into a blog post when I get the time (and motivation).The Cisco Packet Tracer software allows you to simulate some of the lab equipment (routers, switches, PCs, servers) away from the lab environment. I am able to do those stages in theory, I managed to emulate all stages in C# except for stage 3. I have found a GitHub repo for the 5.x and compared my result for 7.x with the 5.x one.Р”Р„ccording to my research, they do the following stages to decode:Р”РЋ - Reverse XOR with length as key (*Similar to 5.x)*2 - Data Pumping3 - Another XOR4 - zlib decode with 4byte length (Similar to 5.x)

#Cisco packet tracer activity full#

Actually, I can dump decrypted XML, but I didn't have enough time to make a full RE on this.Р”В«een there, don't that!I have fully reversed the encoding/decode and there are about 4 stages of encoding/decoding in version 7.x. > By the way, have you tried to decrypt lab files (pka, pkt etc.)? There was a simple XOR until 5.x version, IIRC, but now they're using a different algorithm and there are no tools to decrypt activities.

> I know this and I appreciate your work. Oh haha, no offense, I just figured out there are a lot of locations and ways to cheat the exam, and I was just wondering which way you were thinking about when you talked about those 2 NOP's. /r/REMath - sister subreddit for mathematics related to program analysis./r/RELounge - sister subreddit for non-technical submissions and discussion.Please instead post these links to /r/RELeaks (not affiliated with or endorsed by the moderators of /r/ReverseEngineering).

#Cisco packet tracer activity code#

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#Cisco packet tracer activity how to#

If you have a question about how to use a reverse engineering tool, or what types of tools might be applicable to your project, or your question is specific to some particular target, ask it on the Reverse Engineering StackExchange site. Information about the more formal aspects of reverse engineering (or, 'why are there all of these papers about theoretical computer science and mathematics?') r/ReverseEngineering's Latest Hiring Thread A moderated community dedicated to all things reverse engineering.