Security report question

[Kurt Buff]

I've noted in a security mail from one of my machines the following log entries:

+++ /tmp/security.yEepp7hR	Sat Sep 29 03:02:07 2007
+Limiting closed port RST response from 253 to 200 packets/sec
+Limiting closed port RST response from 233 to 200 packets/sec
+Limiting closed port RST response from 262 to 200 packets/sec
+Limiting closed port RST response from 283 to 200 packets/sec


I don't know what this means, though I suspect it could mean that I'm
being port scanned. Is this a reasonable guess?

Kurt