6000
                   CPSC 333  Assignment

		   Due Tuesday 9/28/99


This assignment concerns the IP protocol

1. Do problem # 4 at the end of chapter 4  (Dijsktra's algorithm)

2. Do problems 2 and 13 at the end of chapter 5.

3. Read the man pages for the Linux (Unix) commands "route" and "traceroute".
   Delete all routes to 157.252.0.0/16.  Add a route to network 157.252.0.0/16 
   with your gateway configured as follows (to do this, first add a gateway-less
   route to 157.0.0.0/8)

     bertucci -> lena -> flaco -> lebowski -> eagle -> 
       maceo -> fletch -> panther -> shaguar -> bertucci.

   That is, bertucci will use lena as gateway, lena will use flaco, etc...

   Run the command "traceroute -n 157.252.104.42", 

3b: Change the default TTL of traceroute to 15 and redo the experiment.

3c: With the routes configured as above, do a "ping 157.252.104.42".
    Read the man pages for "ifconfig" and "ping". Change the MTU of your 
    ethernet interface from the default 1500 down to 1000 with ifconfig.
    Use "ping -s" to send a ping of 1500 bytes to 157.252.104.42, and
    record the results.  (also, at least traceroute allows you to set
    the DF - don't fragment - bit, so you can experiment with this also
    and see where your packet goes.)


Turn in printouts of your routing table, as well as outputs of each
of the experiements, document well what was produced by what.
IN ADDITION, MAKE SURE YOUR LINUX MACHINE IS UP BEFORE COMMING TO
CLASS NEXT WEEK.  All members of your group must participate and may
be called opon to demonstrate their knowledge of the various Linux
commands.