[strongSwan] One to Many VPN (Host-Host)

[Noel Kuntze]

We two talked about this on IRC about two weeks ago. Use the Host-To-Host transport mode configuration on the bottom of the UsableExamples page.
How you authenticate the hosts is up to you. Preferably, you want to have some central PKI that you use. Maybe put the keys in DNS using the ipseckey plugin, but I haven't tested that yet.

Kind regards

Noel

On 17.03.2018 01:16, Info wrote:
>
> Nothing.  Hm.
>
>
> On 03/07/2018 06:47 AM, Info wrote:
>>
>> Any input would be appreciated.
>>
>>
>> On 03/05/2018 05:25 PM, Info wrote:
>>>
>>> On 03/05/2018 12:13 PM, Info wrote:
>>>>
>>>> I'm looking to VPN every machine in a LAN.  I infer that this would be something like a host-to-host config.
>>>>
>>>> I'll use swanctl/vici and x509 certs.
>>>>
>>>> I can't identify any configurations that seem right for this at
>>>>
>>>> https://www.strongswan.org/testing/testresults/swanctl/
>>>>
>>>> Maybe?  https://www.strongswan.org/testing/testresults/swanctl/ip-pool/index.html
>>>>
>>>>
>>>> Also, there is a machine outside on the Internet which I'd like to join the party transparently.  It's a mail server, so somehow I'd like its mail traffic to not be VPNed, but everything else to be.  I guess this might be a roadwarrior with some kind of split for the mail ports.
>>>>
>>>
>>> So my best idea, since IPSec is point-to-point, is to set up a 'hub and spoke' config.  IOW designate one machine as the hub and its remote_addrs are IPs of the multiple other members of the LAN which will be in the VPN.  Or maybe just the CIDR/24 of the LAN.  And all the other members would point to the hub with their remote_addrs.  The hub would be a juicy target for attack though, and forwarding must be on.
>>>
>>> Of course the traffic selectors would be the CIDR/24 of the LAN, although I haven't figured out how to include a remote machine in the ts since its IP could change.  Maybe I could use its resolvable domain name, and DNAT it in through the firewall to the hub.  But this doesn't solve the problem of phones and tablets which change outside IPs and don't have resolvable domain names.
>>>
>>> And what would 'remote' id= be in the hub?  %any?
>>>
>>>
>>
>

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: OpenPGP digital signature
URL: <http://lists.strongswan.org/pipermail/users/attachments/20180317/f4c3d054/attachment.sig>