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network-simulator's Introduction

Hey! I'm Ariel a cyber security researcher (OSCP Certified), software developer, and an always-on student 🤓

  • 👨‍💻 I’m currently working @ PagoNxt as Cyber Security Analyst

  • 📚 I have a BSc. degree in Computer Science at Pucrs

  • 📚 I am a Masters student in Computer Science at Pucrs

  • 🔥 OSCP Certifified!

  • ❓ Ask me about anything, if I can't answer immediately I will learn it to help you 😆

  • 🤓 I'm obsessed with HackTheBox platform for my studies. My user is wh04m1at21

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My Skill Set

android angular angularjs arduino aws azure babel bash bootstrap c cassandra circleci clojure cplusplus csharp css3 d3js django docker dotnet elasticsearch electron ember express figma firebase flask gatsby gcp git go grafana graphql hadoop haskell heroku html5 hugo ifttt jasmine java javascript jekyll jenkins jest kafka kibana kubernetes laravel linux mariadb matlab mocha mongodb mssql mysql nestjs nextjs nginx nodejs nuxtjs opencv oracle pandas php postgresql postman pug puppeteer python pytorch rabbitMQ rails react reactnative redis redux ruby rust sass scikit_learn seaborn selenium sketch spring sqlite tensorflow travisci typescript unity vagrant vuejs vuepress webpack zapier


network-simulator's People

Contributors

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Watchers

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Forkers

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network-simulator's Issues

More fragments flag always set to zero

The flag mf (more fragments) inside the ICMP Request/Reply packet is always zero.

Expected: When the packet is fragmented in more than one packet, all the packets, but not the last, must have the more fragments flag set to 1 (mf=1).

Example output:

N1 box N1 : ETH (src=00:00:00:00:00:01 dst=FF:FF:FF:FF:FF:FF) \n ARP - Who has 10.0.0.1? Tell 10.0.0.2;
R1 => N1 : ETH (src=00:00:00:00:00:10 dst=00:00:00:00:00:01) \n ARP - 10.0.0.1 is at 00:00:00:00:00:10;
N1 => R1 : ETH (src=00:00:00:00:00:01 dst=00:00:00:00:00:10) \n IP (src=10.0.0.2 dst=20.0.0.2 ttl=8 mf=0 off=0) \n ICMP - Echo request (data=helloworld);
R1 box R1 : ETH (src=00:00:00:00:00:11 dst=FF:FF:FF:FF:FF:FF) \n ARP - Who has 100.10.20.2? Tell 100.10.20.1;
R2 => R1 : ETH (src=00:00:00:00:00:21 dst=00:00:00:00:00:11) \n ARP - 100.10.20.2 is at 00:00:00:00:00:21;
R1 => R2 : ETH (src=00:00:00:00:00:11 dst=00:00:00:00:00:21) \n IP (src=10.0.0.2 dst=20.0.0.2 ttl=7 mf=0 off=0) \n ICMP - Echo request (data=helloworld);
R2 box R2 : ETH (src=00:00:00:00:00:20 dst=FF:FF:FF:FF:FF:FF) \n ARP - Who has 20.0.0.2? Tell 20.0.0.1;
N3 => R2 : ETH (src=00:00:00:00:00:03 dst=00:00:00:00:00:20) \n ARP - 20.0.0.2 is at 00:00:00:00:00:03;
R2 => N3 : ETH (src=00:00:00:00:00:20 dst=00:00:00:00:00:03) \n IP (src=10.0.0.2 dst=20.0.0.2 ttl=6 mf=0 off=0) \n ICMP - Echo request (data=helloworld);
N3 rbox N3 : Received helloworld;
N3 => R2 : ETH (src=00:00:00:00:00:03 dst=00:00:00:00:00:20) \n IP (src=20.0.0.2 dst=10.0.0.2 ttl=8 mf=0 off=0) \n ICMP - Echo reply (data=helloworld);
R2 box R2 : ETH (src=00:00:00:00:00:22 dst=FF:FF:FF:FF:FF:FF) \n ARP - Who has 100.10.30.2? Tell 100.10.30.1;
R3 => R2 : ETH (src=00:00:00:00:00:31 dst=00:00:00:00:00:22) \n ARP - 100.10.30.2 is at 00:00:00:00:00:31;
R2 => R3 : ETH (src=00:00:00:00:00:22 dst=00:00:00:00:00:31) \n IP (src=20.0.0.2 dst=10.0.0.2 ttl=7 mf=0 off=0) \n ICMP - Echo reply (data=hel);
R2 => R3 : ETH (src=00:00:00:00:00:22 dst=00:00:00:00:00:31) \n IP (src=20.0.0.2 dst=10.0.0.2 ttl=7 mf=0 off=3) \n ICMP - Echo reply (data=low);
R2 => R3 : ETH (src=00:00:00:00:00:22 dst=00:00:00:00:00:31) \n IP (src=20.0.0.2 dst=10.0.0.2 ttl=7 mf=0 off=6) \n ICMP - Echo reply (data=orl);
R2 => R3 : ETH (src=00:00:00:00:00:22 dst=00:00:00:00:00:31) \n IP (src=20.0.0.2 dst=10.0.0.2 ttl=7 mf=0 off=9) \n ICMP - Echo reply (data=d);
R3 box R3 : ETH (src=00:00:00:00:00:32 dst=FF:FF:FF:FF:FF:FF) \n ARP - Who has 100.10.40.1? Tell 100.10.40.2;
R1 => R3 : ETH (src=00:00:00:00:00:12 dst=00:00:00:00:00:32) \n ARP - 100.10.40.1 is at 00:00:00:00:00:12;
R3 => R1 : ETH (src=00:00:00:00:00:32 dst=00:00:00:00:00:12) \n IP (src=20.0.0.2 dst=10.0.0.2 ttl=6 mf=0 off=0) \n ICMP - Echo reply (data=hel);
R3 => R1 : ETH (src=00:00:00:00:00:32 dst=00:00:00:00:00:12) \n IP (src=20.0.0.2 dst=10.0.0.2 ttl=6 mf=0 off=3) \n ICMP - Echo reply (data=low);
R3 => R1 : ETH (src=00:00:00:00:00:32 dst=00:00:00:00:00:12) \n IP (src=20.0.0.2 dst=10.0.0.2 ttl=6 mf=0 off=6) \n ICMP - Echo reply (data=orl);
R3 => R1 : ETH (src=00:00:00:00:00:32 dst=00:00:00:00:00:12) \n IP (src=20.0.0.2 dst=10.0.0.2 ttl=6 mf=0 off=9) \n ICMP - Echo reply (data=d);
R1 => N1 : ETH (src=00:00:00:00:00:10 dst=00:00:00:00:00:01) \n IP (src=20.0.0.2 dst=10.0.0.2 ttl=5 mf=0 off=0) \n ICMP - Echo reply (data=hel);
R1 => N1 : ETH (src=00:00:00:00:00:10 dst=00:00:00:00:00:01) \n IP (src=20.0.0.2 dst=10.0.0.2 ttl=5 mf=0 off=3) \n ICMP - Echo reply (data=low);
R1 => N1 : ETH (src=00:00:00:00:00:10 dst=00:00:00:00:00:01) \n IP (src=20.0.0.2 dst=10.0.0.2 ttl=5 mf=0 off=6) \n ICMP - Echo reply (data=orl);
R1 => N1 : ETH (src=00:00:00:00:00:10 dst=00:00:00:00:00:01) \n IP (src=20.0.0.2 dst=10.0.0.2 ttl=5 mf=0 off=9) \n ICMP - Echo reply (data=d);
N1 rbox N1 : Received helloworld;

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