On 4/30/18 6:58 AM, Sukumar Gopalakrishnan wrote:

VRF: ICMPV6 Echo Reply failed to egress if ingress pkt Src is IPV6
Global and Dest is IPV6 Link Local.

...

if (fl6->flowi6_oif == dev->ifindex) {

try adding ' && !rt6_need_strict(saddr)' to the above.

If it works, add a comment above the line noting this case (link local
dest and global source) submit a patch.

                dst = &net->ipv6.ip6_null_entry->dst;
                dst_hold(dst);
                return dst;
        }
..


TEMP FIX:
=========

Return Ingress vlan device's ifIndex instead of skb->dev's.

static int icmp6_iif(const struct sk_buff *skb)
{
        int iif = IP6CB(skb)->iif; // skb->dev->ifindex;

..
..
}