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Need help with Cisco environment

Posted on 2014-02-25
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Last Modified: 2014-03-03
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?
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Question by:Anthony H.
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Author Comment

by:Anthony H.
ID: 39888102
what about Cisco FINDIT?
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Expert Comment

by:TimotiSt
ID: 39889887
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... :)

Tamas
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Henk van Achterberg earned 500 total points
ID: 39897754
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!
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PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
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Expert Comment

by:TimotiSt
ID: 39899292
@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.
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Author Comment

by:Anthony H.
ID: 39899352
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Expert Comment

by:Henk van Achterberg
ID: 39900333
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.
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Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

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