OpenVPN on pfSense - Installation guide for (Windows) Dummies :-) (road-warrior)

Garf

This make the thing a hole lote easier. This thread should be Sticky.

hoba

Thanks a lot for posting this! :)

BerSerK

thanks, great tutorial!

jahonix

Thanks alot for this tutorial, Frewald!

Didn't have time to look into OpenVPN at all.
Just followed your tutorial the evening before leaving for holidays and now I'm relaxed, enjoying the kids in the pool and keeping an eye on the mails in the office. Again, thanks for my very relaxed week!

mantissa

Hi Frewald,

These instructions were beautifully easy! Got me up and running in no time!

Kudos,
Mantissa

PredatoryFern

Hey Frewald,

Excellent tutorial. Any objections to me taking (some or all of) this and adding it to the wiki?

mlabenda

Frewald, you are the champ !

Thanks a lot for this "HowTo"

I love pfsense.

tacfit

Yeah, this is great.

Frewald

@PredatoryFern:

Hey Frewald,

Excellent tutorial. Any objections to me taking (some or all of) this and adding it to the wiki?

Great to hear that people like it - and feel free to post all or parts of it to the Wiki - as long as it helps ppl :)

Wasca

Could you please add to this sticky that if your using an OPT interface as your WAN2 that you should use TCP and not UDP for the protocol, this got me stummped until I dug deep on a thread that just mentioned it.

GruensFroeschli

What exactly does not work with UDP?
The problem with TCP is: TCP over TCP should generally not be used where it can be avoided.
–> http://sites.inka.de/~W1011/devel/tcp-tcp.html

Wasca

I found this information on this forum page http://forum.pfsense.org/index.php/topic,8297.msg46717.html#msg46717

as soon as I swapped over to using TCP and updated my WAN2 rules to use TCP I could connect to the OpenVPN service on WAN2 (OPT1)

rpryor

followed this tutorial but can only ping and connect to the pfsense box

protocol: udp
locol port: 1194
address pool: 192.168.20.0/27
local network: 192.168.6.0/25

attached two pics are firewall rules

results of ipconfig:


C:\Documents and Settings\Administrator>ipconfig

Windows IP Configuration

Ethernet adapter Wireless Network Connection:

        Connection-specific DNS Suffix  . :
        IP Address. . . . . . . . . . . . : 192.168.1.104
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        Default Gateway . . . . . . . . . : 192.168.1.1

Ethernet adapter TAP-Win32 Adapter V9:

        Connection-specific DNS Suffix  . :
        IP Address. . . . . . . . . . . . : 192.168.20.6
        Subnet Mask . . . . . . . . . . . : 255.255.255.252
        Default Gateway . . . . . . . . . :

Results of Route Print:


Network Destination        Netmask          Gateway       Interface  Metric
          0.0.0.0          0.0.0.0      192.168.1.1   192.168.1.104       25
        127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1       1
      192.168.0.0    255.255.255.0      192.168.0.1     192.168.0.1       20
      192.168.0.1  255.255.255.255        127.0.0.1       127.0.0.1       20
    192.168.0.255  255.255.255.255      192.168.0.1     192.168.0.1       20
      192.168.1.0    255.255.255.0    192.168.1.104   192.168.1.104       25
    192.168.1.104  255.255.255.255        127.0.0.1       127.0.0.1       25
    192.168.1.255  255.255.255.255    192.168.1.104   192.168.1.104       25
      192.168.6.0  255.255.255.128     192.168.20.5    192.168.20.6       1
     192.168.14.0    255.255.255.0     192.168.20.5    192.168.20.6       1
     192.168.20.1  255.255.255.255     192.168.20.5    192.168.20.6       1
     192.168.20.4  255.255.255.252     192.168.20.6    192.168.20.6       30
     192.168.20.6  255.255.255.255        127.0.0.1       127.0.0.1       30
   192.168.20.255  255.255.255.255     192.168.20.6    192.168.20.6       30
    192.168.122.0    255.255.255.0    192.168.122.1   192.168.122.1       20
    192.168.122.1  255.255.255.255        127.0.0.1       127.0.0.1       20
  192.168.122.255  255.255.255.255    192.168.122.1   192.168.122.1       20
        224.0.0.0        240.0.0.0      192.168.0.1     192.168.0.1       20
        224.0.0.0        240.0.0.0    192.168.1.104   192.168.1.104       25
        224.0.0.0        240.0.0.0     192.168.20.6    192.168.20.6       30
        224.0.0.0        240.0.0.0    192.168.122.1   192.168.122.1       20
  255.255.255.255  255.255.255.255      192.168.0.1     192.168.0.1       1
  255.255.255.255  255.255.255.255    192.168.1.104   192.168.1.104       1
  255.255.255.255  255.255.255.255    192.168.1.104           f0008       1
  255.255.255.255  255.255.255.255    192.168.1.104           10007       1
  255.255.255.255  255.255.255.255     192.168.20.6    192.168.20.6       1
  255.255.255.255  255.255.255.255    192.168.122.1   192.168.122.1       1
Default Gateway:       192.168.1.1

wan_firewall.JPG_thumb

lan_firewall.JPG_thumb

Wasca

followed this tutorial but can only ping and connect to the pfsense box

protocol: udp
locol port: 1194
address pool: 192.168.20.0/27
local network: 192.168.6.0/25

attached two pics are firewall rules

Are your clients using Vista?

I had to add the following to my Vista clients config

route-method exe
mssfix 1200
route-delay 2

And then in the client specifc section in the OpenVPN setup I added the following to the custom options (not the server custom options, the client)

route-delay 2; ns-cert-type server; msssfix 1200; route-method exe;

Give that a try

rpryor

right now just using xp clients and those settings did not help :o(

i can connect to both the vpn interface of the pfsense box and its LAN ipaddress (192.168.6.45) from the laptop on the opposite end of the vpn

i just cant ping/browse/http/telnet into any other system in the 192.168.6.0/25 and to top it off there is no log in the firewall that would suspect it of any misconfiguration

its boggling the mind and body!

–--------------------------------------
got it to work, i had to change all of the gateways on the servers that i wanted to access from the vpn...that will change when i place the proxy server before the pfsense box and should just work as they are all pointing to the proxy right now

im soooooooo flipping excited that i got all of these features for the school that i work for without paying thousands on router equipment and licensing fees!

next step is to create batch files for the staff to auto create all of the client files so i do not get phone calls after hours trying to get them to vpn to the district applications....THANK YOU PFSENSE!

lifethetech

So I've followed the instructions in this discussion, by the way great job on the howto When I get a little more familiar I'll share too.

Anyway this one got me stumped completely. I'm setting up a Vista (Ultimate) roadwarrior config to a pfsense box with dual wan, opt1 wan is static, wan is dynamic
I had issues at first with UDP, switching to TCP was helpful (proto tcp), thanks for the comments on the article guys :)

Anyway I've done the vista workaround in the client config:

route-method exe
route-delay 20

In the server client-specific configuration I specify

route-delay 10; ns-cert-type server; route-method exe

That being said I'm still getting this error:

Thats even after attempting the same command myself using administrator mode of course.

Fri Jun 13 23:34:54 2008 Notified TAP-Win32 driver to set a DHCP IP/netmask of 192.168.200.6/255.255.255.252 on interface {C22CAE94-9A35-48E5-B606-DEF049045B02} [DHCP-serv: 192.168.200.5, lease-time: 31536000]
Fri Jun 13 23:34:54 2008 Successful ARP Flush on interface [22] {C22CAE94-9A35-48E5-B606-DEF049045B02}
Fri Jun 13 23:35:05 2008 TEST ROUTES: 2/2 succeeded len=2 ret=1 a=0 u/d=up
Fri Jun 13 23:35:05 2008 route ADD 192.168.0.1 MASK 255.255.255.0 192.168.200.5
The route addition failed: The parameter is incorrect.
Fri Jun 13 23:35:05 2008 route ADD 192.168.200.1 MASK 255.255.255.255 192.168.200.5
OK!
Fri Jun 13 23:35:05 2008 Initialization Sequence Completed

The thing that sticks in my mind is why just the one route ADD command that fails?

Oh an before anyone asks I'm running the latest RC build (2.1 rc7) and running OpenVPN GUI in administrator mode

And thats the saga, now if one of you fine gents could spare a couple minutes I'd REALLY appreciate it :)
I'm sure its gotta be something reasonably simple that I'm just not getting.

Thanks in advance,
lifethetech

Wasca

Does the Vista PC have UAC enabled on it?

I enabled UAC the other day and then tried to connect to work using OpenVPN and the routes were not added. If you have UAC on try disabling it.

lifethetech

I did have UAC on, but I've turned it off and tested again, no joy yet :(

I'm still getting the same error. Just a little more info I am on the latest release of pfsense.

And I guess it would be pertinent to tell everyone that I'm using Vista with all the latest patches and SP1

Thanks in advance,
lifethetech

EDIT: I've noticed in the openvpn pfsense logs errors related to the client specific openvpn settings:

laptopxxxx/n.n.n.n:49393 Options error: option 'route-delay' cannot be used in this context
laptopxxxx/n.n.n.n:49393 Options error: option 'ns-cert-type' cannot be used in this context
laptopxxxx/n.n.n.n:49393 Options error: option 'route-method' cannot be used in this context

with the n's being the client's IP address

Not sure if that helps or not :)

edit:

A little more info, I've tried tearing down the whole setup and redoing it all then installing the client on XP here is the error from the XP box (still the same error on vista):

The route addition failed: The specified mask parameter is invalid. (Destination & Mask) != Destination

chpalmer

Fix to the link on the original post…

http://openvpn.net/index.php/documentation/howto.html

:)

tacfit

Just for the record, I've posted a slightly modified version for my own personal records on my blog. Big thanks for the work you did here mate!

http://www.jpuddy.net/2008/11/25/setting-up-a-road-warrior-style-vpn-connection-with-pfsense-and-openvpn/