mirror of
https://github.com/opnsense/docs
synced 2024-10-30 21:20:20 +00:00
124 lines
4.6 KiB
ReStructuredText
124 lines
4.6 KiB
ReStructuredText
==========================
|
|
IPsec: Setup Remote Access
|
|
==========================
|
|
|
|
.. contents:: Index
|
|
|
|
-----
|
|
Intro
|
|
-----
|
|
|
|
Road Warriors are remote users who need secure access to the company's infrastructure.
|
|
IPsec Mobile Clients offer a solution that is easy to setup and comptabile with most current devices.
|
|
|
|
With this guide we will show you how to configure the server side on OPNsense with the different
|
|
authentication methods e.g.
|
|
|
|
* EAP-MSCHAPv2
|
|
* Mutual-PSK + XAuth
|
|
* Mutual-RSA + XAuth
|
|
* ...
|
|
|
|
|
|
.. Note::
|
|
|
|
For the sample we will use a private ip for our WAN connection.
|
|
This requires us to disable the default block rule on WAN to allow private traffic.
|
|
To do so, go to :menuselection:`Interfaces --> [WAN]` and uncheck “Block private networks”.
|
|
*(Don't forget to save and apply)*
|
|
|
|
.. image:: images/block_private_networks.png
|
|
|
|
------------
|
|
Sample Setup
|
|
------------
|
|
All configuration examples are based on the following setup, please read this carefully
|
|
as all guides depend on it.
|
|
|
|
**Company Network with Remote Client**
|
|
|
|
.. nwdiag::
|
|
:scale: 100%
|
|
|
|
nwdiag {
|
|
|
|
span_width = 90;
|
|
node_width = 180;
|
|
Internet [shape = "cisco.cloud"];
|
|
fileserver [label="File Server",shape="cisco.fileserver",address="192.168.1.10"];
|
|
fileserver -- switchlan;
|
|
|
|
network LAN {
|
|
switchlan [label="",shape = "cisco.workgroup_switch"];
|
|
label = " LAN";
|
|
address ="192.168.1.1.x/24";
|
|
fw1 [address="192.168.1.1/24"];
|
|
}
|
|
|
|
network WAN {
|
|
label = " WAN";
|
|
fw1 [shape = "cisco.firewall", address="172.18.0.164"];
|
|
Internet;
|
|
}
|
|
|
|
network Remote {
|
|
Internet;
|
|
laptop [address="172.10.10.55 (WANIP),10.10.0.1 (IPsec)",label="Remote User",shape="cisco.laptop"];
|
|
}
|
|
}
|
|
|
|
Company Network
|
|
---------------
|
|
==================== =============================
|
|
**Hostname** fw1
|
|
**WAN IP** 172.18.0.164
|
|
**LAN IP** 192.168.1.0/24
|
|
**LAN DHCP Range** 192.168.1.100-192.168.1.200
|
|
**IPsec Clients** 10.10.0.0/24
|
|
==================== =============================
|
|
|
|
|
|
---------------------------
|
|
Firewall Rules Mobile Users
|
|
---------------------------
|
|
To allow IPsec Tunnel Connections, the following should be allowed on WAN.
|
|
|
|
* Protocol ESP
|
|
* UDP Traffic on Port 500 (ISAKMP)
|
|
* UDP Traffic on Port 4500 (NAT-T)
|
|
|
|
.. image:: images/ipsec_wan_rules.png
|
|
:width: 100%
|
|
|
|
To allow traffic passing to your LAN subnet you need to add a rule to the IPsec
|
|
interface.
|
|
|
|
.. image:: images/ipsec_ipsec_lan_rule.png
|
|
:width: 100%
|
|
|
|
-----------------
|
|
VPN compatibility
|
|
-----------------
|
|
|
|
In the next table you can see the existing VPN authentication mechanisms and which client
|
|
operating systems support it, with links to their configurations.
|
|
For Linux testing was done with Ubuntu 18.4 Desktop and *network-manager-strongswan* and
|
|
*libcharon-extra-plugins* installed.
|
|
As Andoid does not support IKEv2 yet we added notes for combinations with strongSwan
|
|
app installed to have a broader compatibility for all systems.
|
|
Mutual RSA and PSK without XAuth requires L2TP, since this legacy technology is
|
|
very error prone we will not cover it here.
|
|
|
|
.. csv-table:: VPN combinations
|
|
:header: "VPN Method", "Win7", "Win10", "Linux", "Mac OS X", "IOS", "Android", "OPNsense config"
|
|
:widths: 40, 20, 20, 20, 20, 20, 20, 20
|
|
|
|
"IKEv1 Hybrid RSA + XAuth","N","N","N","tbd","tbd","N",":doc:`/manual/how-tos/ipsec-rw-srv-ikev1xauth`"
|
|
"IKEv1 Mutual RSA + XAuth","N","N","N","tbd","tbd","Y :doc:`/manual/how-tos/ipsec-rw-android`",":doc:`/manual/how-tos/ipsec-rw-srv-ikev1xauth`"
|
|
"IKEv1 Mutual PSK + XAuth","N","N","N","tbd","tbd","Y :doc:`/manual/how-tos/ipsec-rw-android`",":doc:`/manual/how-tos/ipsec-rw-srv-ikev1xauth`"
|
|
"IKEv2 EAP-TLS","N","N","N","tbd","tbd","Y :doc:`/manual/how-tos/ipsec-rw-android`",":doc:`/manual/how-tos/ipsec-rw-srv-eaptls`"
|
|
"IKEv2 RSA local + EAP remote","N","N","N","tbd","tbd","Y :doc:`/manual/how-tos/ipsec-rw-android`",":doc:`/manual/how-tos/ipsec-rw-srv-eaptls`"
|
|
"IKEv2 EAP-MSCHAPv2","Y :doc:`/manual/how-tos/ipsec-rw-w7`","Y :doc:`/manual/how-tos/ipsec-rw-w7`","Y :doc:`/manual/how-tos/ipsec-rw-linux`","Y","Y","Y :doc:`/manual/how-tos/ipsec-rw-android`",":doc:`/manual/how-tos/ipsec-rw-srv-mschapv2`"
|
|
"IKEv2 Mutual RSA + EAP-MSCHAPv2","N","N","N","tbd","tbd","Y :doc:`/manual/how-tos/ipsec-rw-android`",":doc:`/manual/how-tos/ipsec-rw-srv-rsamschapv2`"
|
|
"IKEv2 EAP-RADIUS","Y :doc:`/manual/how-tos/ipsec-rw-w7`","Y :doc:`/manual/how-tos/ipsec-rw-w7`","Y :doc:`/manual/how-tos/ipsec-rw-linux`","Y","Y","Y :doc:`/manual/how-tos/ipsec-rw-android`",":doc:`/manual/how-tos/ipsec-rw-srv-eapradius`"
|