Hello! My machines have 16GB of memory but traffic generator uses about ~1GB of memory for 10GE link. On Tue, Jul 28, 2015 at 12:36 AM, alvin nanog <nanogml@mail.ddos-mitigator.net> wrote:
hi pavel
On 07/28/15 at 12:02am, Pavel Odintsov wrote:
It's poor man's traffic generator :)
that's the best kind :-) as long as it gets the job done and you get to control what it does
My test lab is i7 2600 with 2 port Intel X520 10GE and Intel Xeon E5 2604 witj 2 port Intel X520 10GE.
nice cpu hw
trick questions for those thinking of generating ddos traffic for testing
- ?? how much memory was needed to run the traffic generator
i assume around 1GB of memory for 1gigE interface and i still can purposely run out of memory while some apps are running
at 10gigE pci card, you'd probably want at least 12GB - 16GB of memory
- some "poor mans apps" to generate traffic ... start w/ nping or hping
# generate 1,000 Mbit/sec of junk .. floodig is trivial ... ping -i 0.001 -s 2000 victimIP# nping --data-length 2000 --rate 1000 victimIP# socat iperf ... # # generate udp or icmp or arp or tcp traffic # # add options to generate large-sized packets # add options to generate 10Gbit/sec ( number of packet/sec ) # # play around with tcp headers # add options to send MTU=1501 byte but NOT set DF # add options to send ACK but no request # # add options to spoof source and desitination address and ports
# # if the host machine become un-available, you've got a problem # for host in gw dns ntp http smtp for protocol in arp icmp udp tcp nping --protocol [ options ] host.example.com # hping is nice too done done
# for bonus arp fun ... attacker# arpspoof gateway victim attacker# arpspoof victim gateway
# prevent mitm with: use hard coded arp "/etc/ethers" for linux
use OpenSSL certs to flag a warning when "attacker" inserted itself in between gateway and un-aware victim
pixie dust alvin - DDoS-Mitigator.net
On Mon, Jul 27, 2015 at 11:59 PM, <Valdis.Kletnieks@vt.edu> wrote:
On Mon, 27 Jul 2015 23:32:56 +0300, Pavel Odintsov said:
I would like to recommend MoonGen for generating very high speed attacks (I have generated up to 56 mpps/40GE with it).
OK, I'll bite - what hardware were you using to inject that many packets?
-- Sincerely yours, Pavel Odintsov