18.5 Monitoring the network
% arp -a
Net to Media Table
Device IP Address Mask Flags Phys Addr
------ -------------------- --------------- ----- ---------------
le0 gallifrey.acs.ohio-state.edu 255.255.255.255 08:00:20:0c:63:66
le0 tardis.acs.ohio-state.edu 255.255.255.255 08:00:20:06:85:c9
le0 ace.acs.ohio-state.edu 255.255.255.255 08:00:20:0c:3f:ec
le0 nyssa.acs.ohio-state.edu 255.255.255.255 SP 08:00:20:0c:a2:93
le0 224.0.0.0 240.0.0.0 SM 01:00:5e:00:00:00