Sve to je u teoriji vec reseno. Tip kabla, switch-evi.. router.
Sto se tice toga 'kako ce f-nisati' moras uvek da probas... mislim da ne postoji neko SW resenje da ti ponudi tako nesto, barem ne za SOHO mreze (nema tu previse mudrovanja, uzmes i povezes, podesis..).

Mikrotik Dude
http://www.mikrotik.com/thedude.php

The Dude network monitor is a new application by MikroTik which can dramatically improve the way you manage your network environment. It will automatically scan all devices within specified subnets, draw and layout a map of your networks, monitor services of your devices and alert you in case some service has problems.

RouterSim's CCNA™ Network Visualizer®
http://www.routersim.com/CCNA6_Home.html

RouterSim's CCNA™ Network Visualizer® 6.0 is a CCNA™ router and network simulator that offers more features and flexibility than any product on the market. You can design, build and configure your own network. With a program that offers 500 supported commands and over 190 labs, you are empowered to build, test and preview a large variety of networks! CCNA™ Network Visualizer® 6.0 is ideal for:

Anyone studying for the Cisco® CCNA™ 640-802 exam
Deployment over a LAN network
Distance education and deployment on a Citrix server or Microsoft Terminal Services
Corporate trainers and employees
Students at colleges, universities, and technical institutes

Cisco Packet Tracer
Mozes projektovati i vrlo slozenije mreze...... (ovo je cisto simulator)

@Plug-n-Play sa Mikrotik Dude-u mozes uraditi samo plan mreze, ali ne i simulaciju.

Znam za Dude, ali kako ce takvi vizuelni alati pomoci coveku da zna da li ce to zapravo raditi? Tj. ovo se moze i na papiru odraditi ne kapiram sta je tu olaksano osim vizuelnog prikaza.

Probacu i ovaj sisko radi simulacije.

@dragansar ma znam ja to ne brini, ali besplatan je, pomaže...

Naravno @Plug-n-Play da pomaze, Dude je vrlo mocan....ali cisto da @nenadst ne racunara na njega u segmentu simulacije.

@Mister Big Time, Cisco Packet Tracer je simulator mreze (vecim djelom cisko opreme) gdje bukvalno mozes postaviti citavu mrezu, testirati je.....vidjeti dali radi...implementirati razne ruting protokole (rip, eigrp, ospf)....znaci bukvalno kao da radis sa zivom opremom. I plus simultano mozes da pratis kako se ponasaju razliciti protokoli u mrezi (tcp, udp, cdp, arp, dns.......)