Bandwidth usage question

This forum is for admins who are looking to build or expand their OpenVPN setup.
Forum rules
Please use the [oconf] BB tag for openvpn Configurations. See viewtopic.php?f=30&t=21589 for an example.
Post Reply
Dr-Jon
OpenVpn Newbie
Posts: 4
Joined: Mon Apr 11, 2016 12:34 pm

Bandwidth usage question

Post by Dr-Jon » Wed May 31, 2017 2:36 pm

HI, I have an OpenVPN server on my desk that connects to 2 client machines over 3G
there is a 4G router here and 2 3G routers at the other end.
My question is as i'm paying per Gb for the data connections, How much data will the vpn tunnels use. I know the data transfered across the tunnels will be included but if there were no traffic just the tunnels how much data would these use?
Thanks

User avatar
TinCanTech
OpenVPN Protagonist
Posts: 3006
Joined: Fri Jun 03, 2016 1:17 pm

Re: Bandwidth usage question

Post by TinCanTech » Wed May 31, 2017 2:45 pm

It depends on your configuration ..

See --keepalive for instance and use --dev-type tun not --dev-type tap.

Pippin
OpenVPN Expert
Posts: 260
Joined: Wed Jul 01, 2015 8:03 am

Re: Bandwidth usage question

Post by Pippin » Wed May 31, 2017 4:30 pm

Yeah, --keep-alive and also renegotiation, standard every hour.

Dr-Jon
OpenVpn Newbie
Posts: 4
Joined: Mon Apr 11, 2016 12:34 pm

Re: Bandwidth usage question

Post by Dr-Jon » Thu Jun 01, 2017 1:55 pm

so Im useing dev-type tap and keep-alive. these should not account for more than a few meg a day?
or will it be more

User avatar
TinCanTech
OpenVPN Protagonist
Posts: 3006
Joined: Fri Jun 03, 2016 1:17 pm

Re: Bandwidth usage question

Post by TinCanTech » Thu Jun 01, 2017 2:15 pm

Dr-Jon wrote:so Im useing dev-type tap
If you want lower background data usage:
TinCanTech wrote:use --dev-type tun not --dev-type tap

Post Reply