OpenVPN (Ubuntu) and multiple gateways

[The_Unbeliever]

Hi

Anybody had any success in getting openVPN to work successfully on a PC with more than one gateway?

In our case we got both an ADSL line and a wireless link.

I want to set it up so that, should the ADSL go down, we still can VPN in via wireless.

Should the wireless be down, then we can still VPN in via ADSL.

ADSL will be the default, and will fall back to wireless should the ADSL be down for whatever reason.

Regards

Libs

 

[Anthro]

Only issue that you might have is if the wireless is a NAT type (ie no public IP address) - where you will have to someow convince the WISP to open / forward the ports to your NATted IP address

 

[The_Unbeliever]

Only issue that you might have is if the wireless is a NAT type (ie no public IP address) - where you will have to someow convince the WISP to open / forward the ports to your NATted IP address

This has already been done.

At the moment we can VPN in via the wireless link to the openVPN server.

I just need to take the next step

Have no idea on how to configure the server for multiple gateways though.

Thanks

 

[Anthro]

Have no idea on how to configure the server for multiple gateways though

Which part of the server config are you struggling with ? The app itself ?

 

[The_Unbeliever]

Which part of the server config are you struggling with ? The app itself ?

The openvpn.conf file, as well as on how to configure Ubuntu for multiple gateways with one network card.

 

[Anthro]

Ahh, failovers.. I understand.. mm.. wil have to read up on that one,, seems complex..

 

[Kroks]

Source based routing

I setup a system similar to yours a few years ago.

have a look at http://www.wlug.org.nz/SourceBasedRouting the info might be a bit old, but should point you into the right direction. P.S. a lot of the examples will have to do with systems with 2 or more network cards. Even if you use only 1 card you can create a alias to the card, and set it up with it's own IP. It does make things a lot easier.

NOTE: the above link is just a example, you can google for source based routing or policy based routing.

A good idea is to try this on a test box first, and not remotely.

EDIT: I used Freeswan and Openswan when I did this.

 

[Tinuva]

you could have multiple default gateways, just set the wireless to have a higher metric, so that if the adsl fail and the gateway removed for adsl it automatically fail back to wireless.

 

[kingrob]

Hi

Anybody had any success in getting openVPN to work successfully on a PC with more than one gateway?

In our case we got both an ADSL line and a wireless link.

I want to set it up so that, should the ADSL go down, we still can VPN in via wireless.

Should the wireless be down, then we can still VPN in via ADSL.

ADSL will be the default, and will fall back to wireless should the ADSL be down for whatever reason.

Regards

Libs

I wouldn't put all the strain on a poor pc/server, get yourself a MultiWAN Broadband router....we use a cheapskate TP-LINK router that supports two WANs and three LANs. Does the trick....but a bit iffy. A Cisco one would have been nice.