Network IP analysis?

[snip]

using MRTG. Are there any other viable alternatives to MRTG, or are
there any existing mods to mrtg that graph right out of a file rather
than polling for itself? I already have the data I need and would

MRTG happily graphs arbitrary 3external programs, etc. You just have to
hand the data to mrtg in a matter that it likes.

Take a trip to the mailing list archive; it's worth it.

Cheers,