[openstack-dev] [neutron] Cannot setup IPSEC transport mode between VMS

Yitao Jiang jiangyt.cn at gmail.com
Thu Jun 16 15:00:16 UTC 2016

Hi all,

In Liberty, i want to setup a IPSEC between VMS using transport mode with
ESP protocol,

Just as the diagram above descried, only access

If i setup the IPSEC using manually configured key management,
ipsec-tools(setkey) under ubuntu, the vm of cannot reach to, neither do But if first send request
to, such using ping, the can reach them

here's the related OpenStack info

OpenStack: Liberty
Neutron: ML2 LinuxBridge with VxLAN encapsulation.

​And if i setup the same topology of above under VirtualBox on my laptop
with the same IPSEC configuration, there's no such issue.​



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