[tkined] Submission of tkined work???

Duncan Thomson (duncant@mitre.org)
Fri, 12 Mar 1999 11:49:54 -0500

to the tkined maintainers...

We've done some work on tkined for our own use here at MITRE, and
would like to offer our changes up for others to use. (Changes are
summarized below.) What's the best way to do this? Who's maintaining
the distribution and what form should I send the changes in?

Duncan Thomson

---------------
03/08/99 Changes made by Duncan Thomson, at MITRE.
(Starting with scotty-2.1.6 baseline)

Changes were made in apps/ip_discover.tcl, and two new files,
node_discovery.tcl and abort_discovery.tcl were created.

-- Added an additional "Loop Discovery" function in the "IP Discover"
tool. This does the IP Discover process in a loop, so that you can
leave it running and it will discover new additions to, or deletions
from, your network topology. This is valuable in our environment, in
which we are experimenting with mobile networking, and will have a
dynamic network topology. The ICMP node discovery, which pings
every possible host address in the given range, is the most
"expensive" part of the process, in terms of extra traffic on your
net. I put this into an asynchronously executed task, so you can make
this run less frequently than the other steps (snmp queries).

-- Added additional SNMP query logic to obtain netmasks from snmp
agents. (This significantly improves subnet discovery process,
at least in our environment.)

-- Fixed bugs in icmp node discovery process when invoked with other
than a class C network. (The code was there to break a class B or
class A into a series of class C's and to "discover" them all, but
that code was broken. The regular expression syntax was messed up.
I fixed it. Whether having this working is a good thing or not is
questionable. Probably not a good idea to actually use this function
as it generates a LOT of ICMP pings on the network.

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