Need help with Cisco environment

I recently started working with a  hotel.
they have a corporate network and a "office" network.  since the hotel is a franchise, they have two separate networks. the current provider for the office network is "ATT".  they are getting rid of the ATT line and installing Telepacific. the GM has ZERO documentation. I don't know what belongs to who.  I can only go by what I get when I run ipconfig /all from the computers.  

They have several CISCO boxes - routers/switch/firewalls.  

what would be the recommended approach to this?  I don't have any passwords and limited knowledge about cisco equipment.

would network network assistant help me discover and access the devices?
Anthony H.Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Anthony H.Author Commented:
what about Cisco FINDIT?
TimotiStDatacenter TechnicianCommented:
Sounds like a lot of sleepless nights in your future... :)

Connect to different ports/wifi, note subnets/gateways/domains; try traceroute to the outside, see where you go.
Connect console to Cisco devices, try your luck with no/default passwords, see what you get.
Use nmap or any other network scanner to map the things on subnets.
Trace visible cables between devices.
Draw a lot of diagrams for layers 1, 2 and 3.
Establish a nice hourly rate... :)

Henk van AchterbergSr. Technical ConsultantCommented:
You can use cisco password recovery to get access to the config of the equipment WITHOUT DAMAGE!

When we are doing "hostile" takeovers password recovery (or in the cisco case, config recovery) is really helpful!

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Big Business Goals? Which KPIs Will Help You

The most successful MSPs rely on metrics – known as key performance indicators (KPIs) – for making informed decisions that help their businesses thrive, rather than just survive. This eBook provides an overview of the most important KPIs used by top MSPs.

TimotiStDatacenter TechnicianCommented:
@Hank: unless password-recovery was disabled (which is a fairly rare case).

Even if it's not a strict 24/7 environment like a hospital, I'd start out with non-intrusive mapping as much as possible. You don't want to get caught pants down in a live environment.
Anthony H.Author Commented:
Henk van AchterbergSr. Technical ConsultantCommented:
yes it is, but for different equipment you can have different instructions.

google for  "password recovery catalyst 2950" if you have a 2950 switch. or "password recovery cisco 887va", etc.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.