I have a group of users connecting to my server via OpenVPN TCP and UDP (2 services). The two services are operating on
I'd like to be able to limit each user's bandwidth to say 5mb/s up and 5mb/s down using the TC command.
This was fairly easy to implement with PPTP as each user got their own interface, so I could just create a new class/filter for that interface limiting it to my desired speed limit using something like this:
IF=<taken from up script, i.e. ppp1> tc qdisc del dev $IF root tc qdisc add dev $IF root handle 1: cbq avpkt 1000 bandwidth 100mbit tc class add dev $IF parent 1: classid 1:1 cbq rate 10mbit allot 1500 prio 5 bounded isolated tc filter add dev $IF parent 1: protocol ip prio 16 u32 match ip src 0.0.0.0/0 flowid 1:1 tc qdisc add dev $IF parent 1:1 sfq perturb 10
As far as I can tell with OpenVPN users do not get their own interface, all traffic goes through the main
So I have 2 problems here.
1) The script above does not seem to work with OpenVPN for some reason (setting the interface name to
tun1) my test user can still download at their internet's max speed.
2) I need to be able to filter this per source IP and add it in OpenVPN's
up script when they connect while maintaining the other filter/classes and remove that filter/class in the
down script, again without affecting the other connected user's limits (i.e. I can't simply delete the qdisc for tun0 each time a user connects).
The only help I can find when searching is
"you can use TC for that"
but no explanation of how...