On Sun, 22 Feb 2004, Marty Landman wrote:
> So the arp cache doesn't have nodes on it which it hasn't had activity from > for a time?
Yes.
I struck out with upgrading nmap to 3.50 as well, and wanting to learn a little about shell scripting wrote this [doubtless poor example but I am a newbie to unix shells] which does work on my lan - taking about 15 seconds wall time to complete.
$ ./findIps preparing pings start pinging 1 is on the network 3 is on the network 7 is on the network 160 is on the network 240 is on the network End of story
$ more findIps #!/bin/bash
pingEm()
{
echo "preparing pings"
for((i=1;i<255;i++))
do
echo "ping -c1 192.168.0.$i > $$/$i &" >> pingEmAll.$$
done
echo "start pinging"
chmod +x pingEmAll.$$ && `./pingEmAll.$$`
}findEm()
{
for((i=1;i<255;i++))
do
awk '/64 bytes from /' $$/$i > ans
awk '{ print length($0) }' ans > len
if [ `more len` ]
then
echo "$i is on the network"
fi
done
}mkdir $$ && pingEm findEm rm -r $$ & rm pingEmAll.$$ ans len
echo End of story $
Marty Landman Face 2 Interface Inc. 845-679-9387
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