Hi Pablo, On Sun, Nov 24, 2019 at 01:33:10PM +1100, Duncan Roe wrote: > Updated: > > src/extra/ipv6.c: Only test the first 4 bits of the putative IPv6 header to be > 6, since all the other bits are up for grabs. > (I have seen nonzero Flow Control on the local interface and > RFC2474 & RFC3168 document Traffic Class use). > > Signed-off-by: Duncan Roe <duncan_roe@xxxxxxxxxxxxxxx> > --- > src/extra/ipv6.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/src/extra/ipv6.c b/src/extra/ipv6.c > index af307d6..f685b3b 100644 > --- a/src/extra/ipv6.c > +++ b/src/extra/ipv6.c > @@ -45,7 +45,7 @@ struct ip6_hdr *nfq_ip6_get_hdr(struct pkt_buff *pktb) > ip6h = (struct ip6_hdr *)pktb->network_header; > > /* Not IPv6 packet. */ > - if (ip6h->ip6_flow != 0x60) > + if ((*(uint8_t *)ip6h & 0xf0) != 0x60) > return NULL; > > return ip6h; > -- > 2.14.5 > This patch is uncontroversial surely? Cheers ... Duncan.