I'm reading through ACRC chapter 11 and have a couple of
questions.  I expect these are pretty basic...

* On page 267-268 theres the comment that "Only a default static
route is automatically advertised".  I'm not sure I understand
this-- does it mean that I don't need to enable redistribution
in my iGP or eGP in order for other routers to see an advetisement
for this default static?  

* route filters (page 270 and 271).  It looks like diagram 11-3 is
incorrect and does not match with the steps provide on p270.   In
the second diamond ("is there an entry for this address"), if the
answer is "no", isn't the update filtered?  (step 4 on p270, indicates
that the update would be dropped)

* the "distance" command (p284).  Specifically the "address" and
"mask" parameters.   Do these two parameters define what interfaces
the "distance" command is actually applied?   Can one have multiple
"distance" command per routing instance?

* does the "ip default-network" subnet command only have meaning or
significance in classful routing protocols (RIPv1, IGRP)?  
** Must this command be coupled with the "ip classless" command on those
routers which will see the advertisement for the "default-network"?
** Does a "0.0.0.0/0 route get advertised or is there an attribute
set on the default network update which the routers detect and then
create a "0.0.0.0/0" routing entry whch has the same next hop as
the default network?

Thanks




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