Hello: In addition to repeated SSH login attempts (recorded in system.log) my console log also contains a number of entries like the following: Feb 2 10:03:21 sapir kernel: arp: 169.254.215.94 moved from 00:04:80:9b:10:00 to 00:0a:95:eb:86:40 on en0 I understand (sort of) that 169.254.xxx.xxx addresses are "link local" addresses. Neither of these MAC addresses are the MAC address of my machine (as reported via Sytem Profiler). Is this something I should worry about? Thanks Alan