OpenVPN vs IPSec

Miroslav Lachman 000.fbsd at quip.cz
Sun Nov 19 13:33:43 UTC 2017


Muenz, Michael wrote on 2017/11/19 13:32:
> Am 19.11.2017 um 13:08 schrieb Victor Sudakov:
>> Muenz, Michael wrote:
>>>> Is there any reason to prefer IPSec over OpenVPN for building VPNs
>>>> between FreeBSD hosts and routers (and others compatible with OpenVPN
>>>> like pfSense, OpenWRT etc)?
>>>>
>>>> I can see only advantages of OpenVPN (a single UDP port, a single
>>>> userland daemon, no kernel rebuild required, a standard PKI, an easy
>>>> way to push settings and routes to remote clients, nice monitoring
>>>> feature etc). But maybe there is some huge advantage of IPSec I've
>>>> skipped?
>>>>
>>> Hi,
>>>
>>> partners/customers with Cisco IOS or ASA wont be able to partner up
>>> without IPSEC.
>> Sure, that's why I wrote "and others compatible with OpenVPN
>> like pfSense, OpenWRT etc" in the first paragraph.
>>
>
> Are you just searching for arguments against IPSec or real life cases?
> IMHO when you have both ends under control OpenVPN is just fine.
> If you are planning to interconnect with many customers/vendors IPSec
> fits best.
>
> In the last 15 years I was never asked about a Site2Site VPN with OpenVPN
> from any customer or partner of the firewalls I managed.

I have opposite experience. One customer needs IPSec and setting and 
debugging was a pain because we don't have access to the other end.
On the other hand customers with OpenVPN works in a minute. Just send or 
receive openvpn.conf, set some variables in rc.conf and VPN is up and 
running. So I prefer OpenVPN whenever possible.

Miroslav Lachman



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