On Tue, Dec 04, 2012 at 12:38:25AM +0100, Jan Engelhardt wrote:

On Monday 2012-12-03 22:31, Dries De Winter wrote:

quoted

Not fixing this means that skb->mark is unavailable for use on ICMPv6
packets because it will inevitably put those packets on the wrong
interface. [...]

I use skb->mark for QoS, not for routing so I don't expect
the outgoing interface to be affected by my markers.

Why would it do that, if one has no routes joined to a fwmark NNN
routing rule?

iptables_mangle assumes that ip_route_me_harder needs to be called if
the mark has changed.