[nsp] Ipv6 uRPF with RBE

[Oliver Boehmer (oboehmer)]

> 
> On Fri, May 07, 2004 at 09:01:29AM +0100, Colin Whittaker wrote:
> > Turns out ipv6 cef was not enable, thanks must go to Saku Ytti
> > whose assistance off list solved this one.
> 
> If you can do that, it might be helpful to open a TAC case on this -
> it shouldn't silently start dropping all packets, but complain about
> "need CEF for this feature to work" - as it is being done in IPv4
> if you have no CEF but try to enable uRPF...
> 
> Cisco needs to be made aware of these small and unhappy surprises.

ack. 

Even though it looks like a platform/feature-specific thing, I just
tested it in my lab with a plain vanilla ipv6 config, and configuring
ipv6 urpf without enabling ipv6 cef didn't cause pkt drops. So this
needs a bit more investigation..

	oli