rfc1918 ignorant

Wed Jul 23 17:58:17 UTC 2003

On Wednesday, July 23, 2003, at 11:50  AM, Dave Temkin wrote:

> Needs is a tough call.  Plenty of networks block ICMP at the border and
> could very well be using 1918 addressing in between and you'd have no
> idea.

True enough, but my view of networks that blindly block all ICMP is 
about the same as those that misuse 1918 addresses. And if they're 
blocking ICMP specifically to hide their misuse of 1918, well ...

There are direct costs associated with dealing with networks that are 
configured as described above. If you can't see inside to diagnose 
problems, you can't call horsepucky when their support people start 
feeding you a line. The cost of downtime and local support staff 
quickly adds up. I've cancelled contracts in the past for this very 
reason.

--lyndon