[e2e] It's all my fault

[Harald Koch]

Vadim Antonov wrote:
> I never ever in my long career as a backbone engineer had any legitimate
> need to use SR options.

The LSRR option to traceroute was incredibly useful for debugging 
routing problems during CA*net's transition from the NSFnet to MCI back 
in 1994 (we were one of the first NSFnet "regionals" to leave, if I 
recall correctly). Of course, I only had a short career as a backbone 
engineer before leaping into network security, where I saw first-hand 
the "fun" that one could have with those same LSRR options.

I straddle the fence on this one. Like so many other things in life, 
source routing is a tool that can be used for Good or Evil...

-- 
Harald Koch
chk at pobox.com