How Our DDoS Protection Works

Nearly all of our services use multiple layers of traffic filtering to mitigate DDoS attacks. Below is a brief rundown and explanation of how the protection works, from the beginning to end. We do not null route IPs ever! This means we will continue to mitigate attacks of any size towards your server. If you happen to experience connectivity issues during an attack, please contact us and we can help customize protection for your applications.

The Game Firewall (OVH Game) is available for the following locations:
- Singapore (KVM VPS)

Traffic path while attack is being mitigated:
.. Public Network
... Backbone Routers 
.... Network Firewall ↓
.... Pre-Firewall ↓
.... Tilera (Game Firewall) ["Game Anti-DDoS"] ↓
.... Shield / Armor ↓
... Datacenter Routers ↓

.. Your Server

Here is an explanation of what each one does:


Pre-Firewall: The Pre-Firewall (VAC) blocks most common attacks, allowing TCP/UDP/ICMP/GRE and blocking other protocols.

Network Firewall:
 
The Network Firewall allows the client to add custom rules to modify traffic to their IP. This includes allowing/blocking IPs/IP ranges, allowing/blocking traffic protocols (AH,ESP,TCP,UDP,GRE,ICMP), allowing/blocking ports, allowing/blocking SYN/TCPs.


Tilera ["Game Anti-DDoS"]: The Tilera (Game Firewall) allows clients to use customized filters for blocking L7 attacks towards their game or voice servers, such as Ragnarok Online, Teamspeak, Ark, Minecraft, Source/CSGO, GTA, etc. This means only legitimate user traffic to the applications will be allowed to your server. It also limits ICMP, blocks DNS amp, malformed IP/UDP header/incorrect checksum. Note: The Tilera (Game Firewall) may not available in certain locations where game servers aren't offered.

Shield / Armor:
 
The Shield and Armor firewalls are two mitigation layers traffic is sent through and does some of what previous methods do, including blocking most known attacks that work via amplication methods. These are developed by OVH and don't rely on a third partys hardware or software.

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