Network Mapping Software

[DMB2000uk]

I work at a school, and we are needing to create a network map of where all our switches/assets are etc.

The last guy that was network manager took the one he had with him, and we aren't likely to get it back. So we've been without a map of our network for quite some time. I've only been here as a tech a month or so now, but me starting here has allowed the network manager some free time to be able to get round to mapping the network again.

So here is my question:

Does anyone know of any FREE* network mapping software?

Preferably it would be able to resolve ip's to machine names (where available) and discovering switches would be nice too.


If you know of something that you might think suitable, suggest it and we'll give it a try.

Thanks Guys,

Dan

*Being a school we don't have any budget to spend on expensive software, so free is needed

[Darkstar]

Nmap is free although i have never used it,

http://www.network-weathermap.com/about is a network visualization tool

also 3Com had a 30 day trial for one,
last , here is a link for a slow of network tools from Stanford;

http://www.slac.stanford.edu/xorg/nmtf/nmtf-tools.html

[kenc51]

I work at a school, and we are needing to create a network map of where all our switches/assets are etc.

The last guy that was network manager took the one he had with him, and we aren't likely to get it back. So we've been without a map of our network for quite some time. I've only been here as a tech a month or so now, but me starting here has allowed the network manager some free time to be able to get round to mapping the network again.

So here is my question:

Does anyone know of any FREE* network mapping software?

Preferably it would be able to resolve ip's to machine names (where available) and discovering switches would be nice too.


If you know of something that you might think suitable, suggest it and we'll give it a try.

Thanks Guys,

Dan

*Being a school we don't have any budget to spend on expensive software, so free is needed

The easiest way would to be trace route your connection to the web. Then telnet to each ip/hop on the route using the standard ports (80 etc) and see what comes up!
You'd be supprised how easy it is to see what's on the LAN!

You can then use Visio or Dia to draw a network diagram.