I keep getting those lines (sometimes 4 ,5 each day) on my Log Summary. My network is 10.0.0.* Something to be concerned ? thanks.
Unknown Entries:
reuse_lease: lease age 0 (secs) under 25% threshold, reply with unaltered, existing lease for 10.0.0.21: 1 Time(s)
reuse_lease: lease age 3 (secs) under 25% threshold, reply with unaltered, existing lease for 10.0.0.27: 1 Time(s)