Re: [v6ops] draft-gont-v6ops-ipv6-ehs-in-real-world: clarification text

[Joe Touch <[e-mail]>]

On 4/17/2015 10:58 PM, Eric Vyncke (evyncke) wrote:
> If for some reasons, a router in the middle needs access to layer-4
                                              ^^^^^
> information (IPFIX? DDoS mitigation? ... ?), then the EH chain must be
> parsed which can cause a performance impact.

Let's be clear - "wants" access.

If that's what you want, then that's what you have to pay for (for the
vendor, in complexity to parse the packet to find the L4 header; for the
customer, in price).

But two things ought to be made clear:

	1) this is the router vendor's decision, not a requirement
	of Internet routers

	2) this might not even be worthwhile as we move to more
	secure protocols

Joe