[strongSwan] Ipsec Connection Limits

joshua grossjo2 at hotmail.com
Tue Feb 10 17:55:30 CET 2015

We are running Strongswan 5.04 on Ubuntu 12.04 KVM.The kernel used to be a 3.2-virtual which we upgraded to 3.13-generic.
It seems that strongswan only ever gets 20-30 connected users.  Meanwhile we have very similar servers on the public cloud (i.e.: digital ocean) that easily get over 150 connected users.
The VM with the issue was built ourselves on a dedicated server.  We checked the majority of OS settings between the two servers and nothing sticks out.
Is there any setting on a host or VM that could cause this kind of behavious?

Joshua J. Gross
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