Q & A on "Snoop"ing on network traffic
Q: Are there any programs available that I can have my students use to "watch" the network traffic? We are currently using Win 95 computers, but have access to PowerMacs and SUN workstations.
A: On your Sun workstations, you should look at a program called ``snoop''. The following is from the man page:
snoop captures packets from the network and displays their
contents. snoop uses both the network packet filter and
streams buffer modules to provide efficient capture of pack-
ets from the network. Captured packets can be displayed as
they are received, or saved to a file for later inspection.
snoop can display packets in a single-line summary form or
in verbose multi-line forms. In summary form, only the data
pertaining to the highest level protocol is displayed. For
example, an NFS packet will have only NFS information
displayed. The underlying RPC, UDP, IP, and ethernet frame
information is suppressed but can be displayed if either of
the verbose options are chosen.
DESCRIPTION