CODEWITHSUNDEEP
network-programmingudpiptablestcpiproute
DaveB
DaveB

Reputation: 1

NetEm IPv4 filtering

Hope I've came to the right place to ask this, if not I guess my question becomes where can I find people who know the answer as a week on google doesnt help!

I have NetEm setup and got it finally working but what I want to do is test using an IPv4 filter, i.e I want to have latency added to one IP without adding it to others to test the effect of a range of different latencies all commected to one server.

Im running NetEm through ubuntu, any advice pointing me to the right direction would help!

Thanks,

Dave

Upvotes: -1

Views: 510

Answers (1)

lorem
lorem

Reputation: 1199

Please use the below set of commands to setup netem to do whatever you want for a particular ip address.

tc qdisc del dev eth0 root

(assuming eth0 is the interface)

tc qdisc add dev eth0 root handle 1: htb

tc class add dev eth0 parent 1: classid 1:1 htb rate 100mbit

(100mbit rate of tokens)

tc filter add dev eth0 parent 1: protocol ip prio 1 u32 flowid 1:1 match ip dst 192.168.2.219

(assuming you want to throttle bw for this dst ip address)

tc qdisc add dev eth0 parent 1:1 handle 10: netem delay 25ms

(assuming you want a 25ms delay)

Refer to my other answer for a better explaination

And this excellent thesis for a better understanding

Upvotes: 1

Related Questions