start getting some certifications like Network+, CCENT/CCNA. Download some software to start practicing configuring routers/switches like Packet Tracer or GNS3. And like Cimmerian said you have to work your way up!
You will first need a foundation understanding of hardware so look into the CompTIA A+ 801 and 802 exams. Attaining this certification will allow you to call yourself an A+ Technician.
Next you should move to the CCENT -> CCNA -> CCNP certification track. If you're not a fan of Cisco consider the MCSA MCSE route and get yourself the Directory Services certification. There is a lot of work out there for MCSE's at the moment.
The best route imo is to get the A+, then the CompTIA Network+, then a job as a first line support technician. Whilst in this position train towards the CCNA and see if your employer can help you. By the time you're a CCNA technician you could be ready for a promotion to second line support (network level). Keep moving forward with vendor certifictions by EC Council, Microsoft, ComPTIA, Cisco and similar.
i know the reason you/we post mmcdonald,just making a comment,
but really ,the op's post its sounds more like a comment than a question ,and im sure that most people who want to become a network admin already know the things they need do to become one