ddos - fod€¦ · ddos by type of network nrens interconnects gÉant 81 183 641 509 143 1,877...

Networks·Services·Peoplewww.geant.org

GEANTInforma.on&InfrastructureSecurityTeam

CEEPeeringDays

DDoSMi:ga:onToolDDoS-FoD

Budapest,March30th2016

EvangelosSpatharas

Networks·Services·Peoplewww.geant.org 2

WhoisGÉANT?

Networks·Services·Peoplewww.geant.org

NetworkAAacks

GÉANT

DNS,NTP,SMTPandotheramplifica:onaKacks..

4

55%40%

5%

DDoSbyTypeofNetwork

NRENs

Interconnects

GÉANT

81 183 641 509 143

1,877

4,862 4,723

0

1000

2000

3000

4000

5000

6000

Apr-19 May-19 Jun-19 Jul-19 Aug-19 Sep-19 Oct-19 Nov-19

NoofAAacksperM

onth

April2015-October2015

DDoSAAacksDetected

Networks·Services·Peoplewww.geant.org

GÉANT’sSecurityApproach

Interconnect

Transit

??

7

Networks·Services·Peoplewww.geant.org 5

DefendingGÉANT

Networks·Services·Peoplewww.geant.org 6

DefendingGÉANT

Networks·Services·Peoplewww.geant.org 7

Preventa.veControls-Zones

Networks·Services·Peoplewww.geant.org 8

NumberofVulnerableSystembyOS

•  Assetmanagement•  AreasofaKen:on•  Monthlyscans

Preventa.veControls–Others

Others

•  uRPF•  Bogons•  Spoofing•  Etc

Networks·Services·Peoplewww.geant.org 9

Detec.on

Networks·Services·Peoplewww.geant.org 10

NetFlowMonitoring+ADS

FlowMon

•  NetFlowv9•  33JuniperMXs•  >900Mflowsperday•  1:100samplingrate•  Entrypoints•  Fan-outforothertools•  Notjustanomalydetec:ontool•  Alerts•  Redundacy?•  Manymethods..

Networks·Services·Peoplewww.geant.org 11

NetFlowAlerts+AutomatedTickets=NSHaRP

!  Basedoncri:cality!  Perclientbasis!  Automa:cclosure!  MainlyanNRENservice!  Dailyreports

Networks·Services·Peoplewww.geant.org 12

Mi.ga.on

Networks·Services·Peoplewww.geant.org 13

Chainarchitecture

•  Head"Middle"Tail•  Audi:ng•  Troubleshoo:ng•  Deployment

ACLs–ChainArchitecture

Networks·Services·Peoplewww.geant.org 14

Sta.s.cs

•  6RTBH-eddes:na:ons•  ~3billionsofpacketsblocked

Countersreseteveryweek!!

RTBH

Other

•  UTRSservice–TeamCYMRU•  CogentRTBHservice•  Etc.

Networks·Services·Peoplewww.geant.org

fod.geant.netBGPFlowspec-FoD

Networks·Services·Peoplewww.geant.org 16

FoDWEBGUI

Networks·Services·Peoplewww.geant.org 17

FoDDemoTime

DemoTime!

Networks·Services·Peoplewww.geant.org 18

Underthehood–CurrentStatus

IXA

GÈANTInternet

IXB

NRENA

Flowspec

FoD

NSHaRP/other

Networks·Services·Peoplewww.geant.org 19

Upgrade–FuturePlans

IXA

GÈANTInternet

IXB

NRENA

Flowspec

FoD

NSHaRP&RepShield

Networks·Services·Peoplewww.geant.org 20

LessonsLearned

Networks·Services·Peoplewww.geant.org 21

WhatdoYOUthink?

WhatdoYOUthink?

Networks·Services·Peoplewww.geant.org 22

Q&A

Networks·Services·Peoplewww.geant.org

Thankyou

Networks·Services·Peoplewww.geant.org

23

GEANTInforma:on&InfrastructureSecurityTeam

Evangelos.Spatharas@geant.org