What do you intend to say with that? I already wrote that what Windows does has 
nothing to do with the "dhcp" plugin.

Look, I did not participate in the developing of the Windows Agile VPN client 
and I also don't know why they did it. I just tell you how it is.
After the CHILD_SA is up, Windows starts sending DHCP DISCOVER messages over 
the CHILD_SA. That's what it does. I don't know *why* it does that and/or who 
thought that was a good idea, but it does that.
It does *not* do anything over IKE and it has *no* relation to what the "dhcp" 
plugin of strongSwan does (which is the *responder* (*not* the inititator) 
requesting an IP and DNS/WINS settings over DHCP).

On 8/9/18 1:30 PM, Christian Salway wrote:
> https://wiki.strongswan.org/issues/1098
> 
> 
>         Tobias Brunner <https://wiki.strongswan.org/users/8> almost 3 years 
> <https://wiki.strongswan.org/projects/strongswan/activity?from=2015-09-07> ago
> 
>   * *Status* changed from /New/ to /Feedback/
>   * *Priority* changed from /High/ to /Normal/
> 
> There is a DHCP plugin 
> <https://wiki.strongswan.org/projects/strongswan/wiki/DHCPPlugin> to _assign 
> virtual IPs and DNS servers to clients_ that are requested by the strongSwan 
> server via DHCP on behalf of the clients. If you are considering DHCP over 
> IPsec there is a configuration attribute called |INTERNAL_IP4_DHCP| but 
> strongSwan has no support for that as client (i.e. it won't request it). And 
> as server you can only assign it globally via the attr 
> <https://wiki.strongswan.org/projects/strongswan/wiki/Attrplugin> or the 
> attr-sql <https://wiki.strongswan.org/projects/strongswan/wiki/Attrsql> 
> plugins. Also 
> 
> 
> 
> Kind regards,
> 
> *Christian Salway*
> IT Consultant - *Naimuri*
> 
> T: +44 7463 331432
> E: christian.sal...@naimuri.com <mailto:christian.sal...@naimuri.com>
> A: Naimuri Ltd, Chandlers Point, Manchester M50 2UW
> 
>> On 9 Aug 2018, at 07:13, Noel Kuntze 
>> <noel.kuntze+strongswan-users-ml@thermi.consulting 
>> <mailto:noel.kuntze+strongswan-users-ml@thermi.consulting>> wrote:
>>
>> It's because you're doing it wrong. You must *not* use the dhcp plugin of 
>> strongSwan to request the IP. Have Windows do a DHCP request over the VPN 
>> (according to the article it should do that). The dhcp plugin does something 
>> completely different.
>>
>> On 09.08.2018 08:07, Christian Salway wrote:
>>> Perhaps the answer is to set the attr DHCP to the IP of the DHCP server 
>>> inside the VPN but then still, how does the client know how to route to the 
>>> IP address.
>>>
>>> There doesn’t seem to be a solution for this even though all the parts are 
>>> there.
>>>
>>>> On 8 Aug 2018, at 15:15, Noel Kuntze 
>>>> <noel.kuntze+strongswan-users-ml@thermi.consulting 
>>>> <mailto:noel.kuntze+strongswan-users-ml@thermi.consulting>> wrote:
>>>>
>>>> Hello Christian,
>>>>
>>>> I guess the native Mac OSX client just doesn't support being connected to 
>>>> more than one server, so this can't be solved with it.
>>>>
>>>> For Windows, you need to setup and run a DHCP server on the VPN server, 
>>>> which answers the DHCP requests that Windows (uniquely and only Windows!) 
>>>> sends over the VPN. You can use that to push routes to the client. Just 
>>>> use the same options as with "real" DHCP clients, requesting configuration 
>>>> from/on the LAN. This is described in the article about Windows 
>>>> interoperability[1].
>>>>
>>>> [1] 
>>>> https://wiki.strongswan.org/projects/strongswan/wiki/WindowsClients#Split-routing-on-Windows-10-and-Windows-10-Mobile
>>>>
>>>> Kind regards
>>>>
>>>> Noel
>>>>
>>>>> On 07.08.2018 09:07, Christian Salway wrote:
>>>>> Hello all,
>>>>>
>>>>> After several months of using strongSwan, I still can't get the routing 
>>>>> to work correctly on the clients.  I have run out of pages to read on the 
>>>>> strongswan website so I hope you can help me out.
>>>>>
>>>>> The problem is when I connect to strongSwan, the routing is not 
>>>>> configured correctly on the clients (OSX and Windows) - using native 
>>>>> (built-in) clients. All updated with the latest patches/updates.
>>>>>
>>>>> OSX will set up a route based on the local_ts but when I open a 
>>>>> simultaneous connection to another strongSwan server, it removes the 
>>>>> route from the first VPN connection and adds it's own based on the 
>>>>> local_ts.
>>>>>
>>>>> WINDOWS doesnt add the route at all.
>>>>>
>>>>> In either cause, I normally have to manually add the routes in.
>>>>>
>>>>> Has anyone had any success? Can they please shed some light as to how 
>>>>> they achieved it?
>>>>>
>>>>>
>>>>> Kind regards,
>>>>>
>>>>> *Christian Salway*
>>>>> IT Consultant - *Naimuri*
>>>>>
>>>>> T: +44 7463 331432
>>>>> E: christian.sal...@naimuri.com <mailto:christian.sal...@naimuri.com> 
>>>>> <mailto:christian.sal...@naimuri.com>
>>>>> A: Naimuri Ltd, Chandlers Point, Manchester M50 2UW
>>>>>
>>>>
>>
> 

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