lwtunnel: add options process for arp request

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Without options copied to the dst tun_info in iptunnel_metadata_reply()
called by arp_process for handling arp_request, the generated arp_reply
packet may be dropped or sent out with wrong options for some tunnels
like erspan and vxlan, and the traffic will break.

Fixes: 63d008a4e9 ("ipv4: send arp replies to the correct tunnel")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Xin Long 2019-11-06 17:01:03 +08:00 • committed by David S. Miller

parent 426071f1f3

commit f52f11ec8a

1 changed files with 4 additions and 3 deletions

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7

net/ipv4/ip_tunnel_core.c

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