On Mon, Aug 16, 2010 at 1:49 AM, Marco Hogewoning <mar...@marcoh.net> wrote: > On 15 aug 2010, at 20:05, Randy Bush wrote: >> rfc1918 packets are not supposed to reach the public internet. once you >> start accommodating their doing so, the downward slope gets pretty steep >> and does not end in a nice place. > > I cannot agree more with this. If you want PMTU use >non-private space, there is enough really :) And saving > a /24 by renumbering your core into RFC 1918 won't > save you from the coming run out.
I once suggested something along the lines of: interface Loopback0 ip address 1.2.3.4 255.255.255.255 interface GigabitEthernet0/0 ip address 192.168.0.1 255.255.255.0 icmp errors-from Loopback0 But I was yelled at for trying to break traceroute. Regards, Bill Herrin -- William D. Herrin ................ her...@dirtside.com b...@herrin.us 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004