It looks like that MAC address is the default gateway's on my local subnet. I'm using cable and I think those IP's are ones doing ARP requests on my local subnet too. Is that normal?
version 12.2
no parser cache
no service single-slot-reload-enable
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname cisco1
!
logging rate-limit console 10 except errors
enable secret 5 $1$KVcz$8bzbZPjCCat2SGl/knO2m0
!
ip subnet-zero
no ip gratuitous-arps
no ip domain-lookup
!
no ip dhcp-client network-discovery
lcp max-session-starts 0
!
interface Ethernet0
description Interface to PC
ip address 10.10.10.1 255.255.255.0
no ip proxy-arp
ip nat inside
no cdp enable
hold-queue 32 in
!
interface Ethernet1
description Interface to Cable Modem
ip address dhcp
no ip proxy-arp
ip nat outside
no cdp enable
!
ip classless
no ip http server
!
ip nat inside source list 102 interface Ethernet1 overload
ip nat inside source static tcp 10.10.10.3 3389 interface Ethernet1 3389
ip nat inside source static tcp 10.10.10.3 21 interface Ethernet1 21
logging source-interface Ethernet0
logging 10.10.10.3
access-list 102 permit ip 10.10.10.0 0.0.0.255 any
no cdp run
!
line con 0
transport input none
stopbits 1
line vty 0 3
exec-timeout 0 0
login local
length 0
line vty 4
exec-timeout 0 0
login local
length 0
!
scheduler max-task-time 5000
John
