CIS 656 The following is a snapshot of the arp table in my workstation (maan). arp -a gives computers by name. arp -an gives computers by address (number). We see that the IP address of the interface of vlan12-gw that is on the same network as maan has IP address 128.235.32.1 (dotted decimal) and ethernet address 00:00:0c:07:ac:01 (hexadecimal). So, in binary, the IP address is 1000 0000 1110 1011 0010 0000 0000 0001 and the ethernet address is 0000 0000 0000 0000 0000 1100 0000 0111 1010 1100 0000 0001 . maan-1555 ott>: arp -a Net to Media Table: IPv4 Device IP Address Mask Flags Phys Addr ------ -------------------- --------------- ----- --------------- hme0 vlan12-gw 255.255.255.255 00:00:0c:07:ac:01 hme0 vlan12-gw5 255.255.255.255 00:d0:03:70:5f:fc hme0 dhcp34-202 255.255.255.255 00:07:e9:ec:3e:e6 hme0 dhcp34-215 255.255.255.255 00:b0:d0:b1:f9:37 hme0 maan 255.255.255.255 SP 08:00:20:ff:bb:21 hme0 dhcp34-138 255.255.255.255 00:b0:d0:06:f6:73 hme0 phase 255.255.255.255 00:b0:d0:98:e2:90 hme0 dhcp34-149 255.255.255.255 00:b0:d0:07:1e:e2 hme0 dhcp34-171 255.255.255.255 00:06:5b:01:45:e8 hme0 dhcp34-166 255.255.255.255 00:d0:09:03:da:c3 hme0 ultra 255.255.255.255 00:03:ba:2a:23:0c hme0 BASE-ADDRESS.MCAST.NET 240.0.0.0 SM 01:00:5e:00:00:00 maan-1556 ott>: arp -an Net to Media Table: IPv4 Device IP Address Mask Flags Phys Addr ------ -------------------- --------------- ----- --------------- hme0 128.235.32.1 255.255.255.255 00:00:0c:07:ac:01 hme0 128.235.32.5 255.255.255.255 00:d0:03:70:5f:fc hme0 128.235.34.202 255.255.255.255 00:07:e9:ec:3e:e6 hme0 128.235.34.215 255.255.255.255 00:b0:d0:b1:f9:37 hme0 128.235.32.243 255.255.255.255 SP 08:00:20:ff:bb:21 hme0 128.235.34.138 255.255.255.255 00:b0:d0:06:f6:73 hme0 128.235.35.147 255.255.255.255 00:b0:d0:98:e2:90 hme0 128.235.34.149 255.255.255.255 00:b0:d0:07:1e:e2 hme0 128.235.34.171 255.255.255.255 00:06:5b:01:45:e8 hme0 128.235.34.166 255.255.255.255 00:d0:09:03:da:c3 hme0 128.235.33.180 255.255.255.255 00:03:ba:2a:23:0c hme0 224.0.0.0 240.0.0.0 SM 01:00:5e:00:00:00 maan-1557 ott>: