On Tue, 2015-10-06 at 16:23 +0200, Maxime Bizon wrote:
> + if (maniptype == NF_NAT_MANIP_SRC) {
> + from = ipv6h->saddr.s6_addr32;
> + to = target->src.u3.in6.s6_addr32;
> + } else {
> + from = ipv6h->daddr.s6_addr32;
> + to = target->src.u3
With this setup:
* non IPv6 checksumming capable network hardware
* GRO off
* IPv6 SNAT
I get this when I receive an UDPv6 reply: ": hw csum failure"
Call trace:
* nf_ip6_checksum() calls __skb_checksum_complete()
* nf_nat_ipv6_csum_update() & nf_nat_ipv6_manip_pkt()
* __udp6_lib_rcv() => udp6
On Tue, Oct 06, 2015 at 04:10:52PM +0200, Maxime Bizon wrote:
>
> With this setup:
>
> * non IPv6 checksumming capable network hardware
> * GRO off
> * IPv6 SNAT
>
> I get this when I receive an UDPv6 reply: ": hw csum failure"
>
> Call trace:
>
> * nf_ip6_checksum() calls __skb_checksum_compl
With this setup:
* non IPv6 checksumming capable network hardware
* GRO off
* IPv6 SNAT
I get this when I receive an UDPv6 reply: ": hw csum failure"
Call trace:
* nf_ip6_checksum() calls __skb_checksum_complete()
* nf_nat_ipv6_csum_update() & nf_nat_ipv6_manip_pkt()
* __udp6_lib_rcv() => udp6
