OpenVPN client config arguments

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HNJAMeindersma
DD-WRT Novice


Joined: 10 May 2018
Posts: 7
PostPosted: Thu May 10, 2018 22:26    Post subject: OpenVPN client config arguments Reply with quote
I currently have a successful DD-WRT v3.0-r35898 std (05/07/18) OpenVPN client setup running with NordVPN as the provider on a simple D-link DIR-825. I am using the 'TLS Auth Key' and 'CA Cert' fields to paste in the certificates. And the 'User Pass Authentication' fields for login credentials.

The setup tutorial I used: https://nordvpn.com/tutorials/dd-wrt/openvpn-gui/

However, I would like to direct to a certificate file on a flashdrive connected to the router via the 'Additional Config' field. I've found this article describing various arguments/commands for the VPN client.

https://www.dd-wrt.com/wiki/index.php/VPN_%28the_easy_way%29_v24%2B

I am currently unable to get this to work with a combination of the following commands:

Code:
ca /jffs/nordvpn/2018-04-27.certificates/nl209_nordvpn_com_ca.crt
cert /jffs/nordvpn/2018-04-27.certificates/nl209_nordvpn_com_ca.crt
key /jffs/nordvpn/2018-04-27.certificates/nl209_nordvpn_com_tls.key


When I use the 'key' argument is says in the log that I "should use both". But then trying either key+ca or key+cert or all 3 will not work.

Would I be able to use this method, and if so what arguments do I need to use?

Last edited by HNJAMeindersma on Wed Jul 11, 2018 19:07; edited 1 time in total
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HNJAMeindersma
DD-WRT Novice


Joined: 10 May 2018
Posts: 7
PostPosted: Sat May 12, 2018 16:40    Post subject: Reply with quote
eibgrad wrote:
Code:
cat /tmp/openvpncl/openvpn.conf


Just what I needed, thanks!
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HNJAMeindersma
DD-WRT Novice


Joined: 10 May 2018
Posts: 7
PostPosted: Wed Jul 11, 2018 19:16    Post subject: Reply with quote
Oh btw, my solution was:

I mounted a USB flash drive as /jffs which contains all the certificate files specifically for NordVPN. Then in 'Additional Config' I put:

Code:
# Certificates
tls-auth /jffs/nordvpn/certificates/ab123_nordvpn_com_tls.key 1
ca /jffs/nordvpn/certificates/ab123_nordvpn_com_ca.crt

# Logging
log /jffs/logs/vpn.log

# Additional configuration
remote-cert-tls server
remote-random
nobind
tun-mtu 1500
tun-mtu-extra 32
mssfix 1450
persist-key
persist-tun
ping-timer-rem
reneg-sec 0


Notice the '1' behind tls-auth. This got me struggling for some time.

It is easiest this way for me keep a recent copy of the NordVPN certificate files, to easily switch the router to another server.

This setup could also work for other VPN providers, however the '# Additional configuration' may be different.
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thomasashwin
DD-WRT Novice


Joined: 14 Aug 2017
Posts: 19
PostPosted: Fri Aug 03, 2018 6:17    Post subject: Reply with quote
Recently I have also faced the same problem & contacted with Wanos.co. They helped me to fix that issue in a short time period. According to me, it will better to take help from your network service provider.
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