Was checking devices connected to my WRT54g, and there was a MAC address identical to my main computer's wireless adapter MAC address except one digit (mine ends 0b, this was 0a). Found it in my log as well. Any idea what this is?
No, it doesn't. It doesn't show any MAC addresses, btw, only IPs. The IP assigned to one is 192.168.1.133 (the one I'm using) and 192.168.1.132. Only 192.168.1.133 shows up with arp -a