Re: [lwip-devel] ipv6 processing - ip6_input()

[address@hidden]

Enrico Lehmann wrote:
> > I will look into whether it makes sense to pass on the input netif or
> > accept netif to ucp/tcp layers.
> I think it is necessary to always pass the netif where the adress match 
> occured, which is not necessarily the input netif.
> For example, the nd6_input() uses the passed netif for address checkings. So if 
> the wrong netif is used, this will fail.

Hmm, I guess that might make sense for IPv4, too: I've always wondered 
why we check all netifs for accepting packets but then pass on a 
potentially "wrong" packet to transport layer. OTOH, if the 'inp' is 
used to send packets (e.g. by calling 'udp_sendot_if()'), then passing 
the input netif might be required?

I think *if* we change this for IPv6, we should change it for IPv4, too.

Simon