On 2018-04-12 05:52, Noel Kuntze wrote:
Thanks Noel, that was the direction I needed !
Your dhcp relay suggestion is a good one too.
Back to the engineering lab for me :)
Best regards.
Hello,
IPsec is a layer 3 tunneling protocol. The solution to your problem is
to wrap a layer two tunneling protocol inside IPsec. On Linux, that
could be a gretap tunnel, geneve, or other. There are many to choose.
Check the man page of `ip tunnel` or the corresponding help message.
Kind regards
Noel
On 11.04.2018 05:04, flyingrhino wrote:
Hi,
I am trying to connect a servers-network to several remote
clients-networks using ipsec/strongswan.
Normally I could do that easily at Layer 3 on my own without troubling
the forum.
However, I need to pass L2 packets from side to side - this includes
ARP - because the machines at the initiator left side are being given
IP addresses from a DHCP server located at the responder left side.
Network description:
- On the initiator machine I have a tap interface that's bridged with
eth0 that connects to a physical switch. The DHCP clients connect to
this switch.
I have several of these networks.
Each of these networks is a road-warrior style setup - the network can
pop up anywhere in the world.
- On the responder machine I also have a tap interface that's bridged
with eth0 that connects to a switch. The DHCP server and other servers
connect to this switch.
I must assign IPs to the initiator-side-clients from the
responder-side DHCP server - I can't have DHCP servers on the remote
networks at the clients end (where the initiator lives).
Is there a way to tell strongswan/ipsec that it should take all the
traffic from the tap interface and push it through the tunnel to make
it appear at the other side tap interface?
If needed - I don't mind setting up multiple tap interfaces on the
responder - each serving one initiator.
Can you please point me in the right direction?
Do you have an example similar to my scenario that I can look at to
learn from?
Thank you very much.
A long time openvpn sysadmin now turned strongswan sysadmin!
