loopback routing - just curious

[da Bobstopper <rmarlow@tartarus.uwa.edu.au>]

hiya, i've noticed that 

route add -net 127.0.0.0

doesn't seem to work anymore and, even more curiously, doesn't seem to be
needed. i can still ping 127.0.0.1 but the 127.0.0.0 route isn't evident in
my route -n output.

i gather that this is kernel related, not debian related since it only happens
after upgrading the default slink kernel to 2.2.10, but i'm still curious. 

removing the 127.0.0.0 route from the older 2.0.36 kernel machines prevents
me from pinging 127.0.0.1. i like it, but what happened?

from

da Bobstopper