Il 02/11/21 13:15, Petr Pisar ha scritto:
> V Tue, Nov 02, 2021 at 09:46:28AM +0000, Mattia Verga via devel napsal(a):
>> I was trying to set up a VPN to my work company network. It seems I need
>> to use IPSec XAuth PSK, so I found some guide in internet that says to
>> set up a libreswan VPN.
>> I'm facing several problems, first of all I'm using Plasma KDE which
>> seems to not have a GUI for setup/editing libreswan VPNs. Plasma-nm only
>> has support for openswan. I've reported that upstream and downstream. So
>> I went setting up the VPN through nmcli: it doesn't work, but that's not
>> my point here.
>>
>> I was wondering how both plasma-nm and nmcli allow to setup an openswan
>> VPN since openswan has been retired in Fedora many years ago... it also
>> seems to work (well, in some way, since the connection fails) even if
>> there's no NM plugin or openswan package installed.
>> How is it possible? Does NM bundles some openswan library itself? If so,
>> is it updated (latest Fedora openswan build was 8 years ago) or there
>> may be any security concern?
>>
> An explanation is that you mistaken IPsec as a protocol and Openswan as an
> implementation of the protocol. There are multiple implementations of IPsec.
> E.g. in Fedora we have Strongswan and Libreswan. And NetworkManager plugins
> for both of them:
>
> # dnf repoquery --qf '%{name} %{summary}' |grep IPsec
> NetworkManager-l2tp NetworkManager VPN plugin for L2TP and L2TP/IPsec
> NetworkManager-l2tp-gnome NetworkManager VPN plugin for L2TP and L2TP/IPsec - GNOME files
> NetworkManager-libreswan NetworkManager VPN plug-in for IPsec VPN
> ike-scan IKE protocol tool to discover, fingerprint and test IPsec VPN servers
> libreswan Internet Key Exchange (IKEv1 and IKEv2) implementation for IPsec
> openvswitch-ipsec Open vSwitch IPsec tunneling support
> strongswan An OpenSource IPsec-based VPN and TNC solution
>
> So the answer is that nmcli in Fedora does use Openswan. It uses Strongswan or
> Libreswan.
>
> -- Petr
mmm, but if I:
$ nmcli conn add type vpn vpn-type openswan
it creates a vpn of vpn-type=org.freedesktop.NetworkManager.openswan,
while if I:
$ nmcli conn add type vpn vpn-type libreswan
it creates a vpn-type=org.freedesktop.NetworkManager.libreswan
Do you mean that both are using the same implementation even if they
seem to point to different plugins?
Mattia
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