You should mention your level of experience so we can help you better. I will assume you have none. let’s start from base level up to expert level.
There are many network and network security certificates, but before you get any of them you need to learn the fundamentals. First you need to learn computer software and hardware basics then networks basics then security basics after than you can start getting more advanced and get vendor specific certificates.
I recommend getting theses certificates:
CompTIA A+.
—- → Find your self an entry level job.
CompTIA Network+.
—- → Try to get a job involves basic network tasks.
CompTIA Security+.
—— > Try to get a job involves network/system security tasks.
CCNA Routing and Switching.
—- → Now you are ready to be a network technician.
CCNP Routing and Switching.
—- → Senior Network Technician.
CCNA Security.
—- → Network Security technician.
CCNP Security.
—- → Network Security Specialist.
CCIE Security.
—- → Network Security Expert.
It’s a very long Journey, but if you like networks and networks security, it will be a great journey and absolutely worth it.