On 8/23/19 11:51 AM, Alexey Kodanev wrote:
> When using mpls over gre/gre6 setup, rt->rt_gw4 address is not set, the
> same for rt->rt_gw_family. Therefore, when rt->rt_gw_family is checked
> in mpls_xmit(), neigh_xmit() call is skipped. As a result, such setup
> doesn't work anymore.
>
> This issue was found with LTP mpls03 tests.
>
> Fixes: 1550c171935d ("ipv4: Prepare rtable for IPv6 gateway")
> Signed-off-by: Alexey Kodanev <[email protected]>
> ---
> net/mpls/mpls_iptunnel.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
ok, I see now. This is a device only route with MPLS encap:
10.23.0.1 encap mpls 60 dev ltp_v0 scope link
and the change reverts to 5.1 behavior unless the gateway is IPv6 (new
behavior). Thanks for the patch.
Reviewed-by: David Ahern <[email protected]>
