>Are there any visual tools that will generate network maps for network admins?
>Most of the tools are commercial and are specific to some platform (OpenView
>from HP and NetView from IBM). I am looking for something that could be used on
>Linux or OpenBSD.
May be you can have a look on nessus ? (http://www.nessus.org/)
which is a security network scanner. I use it very often and I appreciate:
- the security holes database
- the fact that it can scan large ip range
- the fact that its report can be saved has html, latex, etc.
you can appreciate nessus via an online demo :