[c-nsp] Hiding a Cisco Router from a Traceroute

[Gordon Bezzina]

Hi,

I do not know if this is possible with an ACL, but I would like to hide my
network topology from the internet.

Eg. trace to c.c.c.c

1 a.a.a.a
2 b.b.b.b
3 c.c.c.c

Assume that c.c.c.c is final client whilst b.b.b.b is my border router and
a.a.a.a and before is from the Internet. Now I want to set up an ACL that
hides from b onwards. Excuse my ignorance, but I cannot find a clean way to
do it. Obviously, I still want my client to be able to perform pings and
tracroutes to the external world.

Thanks/Regards
Gordon Bezzina