Upstream: no
The private TCP option for support Taobao LVS full-NAT feature
This option saves the original IP address and source port of a TCP segment
after LVS performed NAT on it. So far, this module only supports IPv4 and
IPv6 mapped IPv4.
cdb need it.
Signed-off-by: Xiaoming Gao <newtongao@tencent.com>
Signed-off-by: katrinzhou <katrinzhou@tencent.com>
Signed-off-by: Kairui Song <kasong@tencent.com>