Different types of firewall deployment modes

--> Selection of firewall mode mainly depends upon two criteria's

i) Security and Performance requirements

ii) Location of the firewall to be placed




--> Enterprise Firewalls can be deployed in four modes,

i) Distributed Enterprise Firewall

--> Performance and Security requirements are very less.

--> Security throughputs are ranging up to  10 Gbps.

--> Distributed Enterprise Firewalls can be placed at Branch offices or Small Medium Business Offices.

-->  Distributed Enterprise Firewalls are having all the features such as NAT, IPS, Dynamic and Static Routing, VPN, Anti Virus, Firewall policies and cloud sandboxing in a single device.

ii) Internal Segmentation Firewall

--> Performance and Security requirements are more as they need to protect the servers & applications from internal users.


--> Security throughputs are ranging up to 100 Gbps.

--> Internal Segmentation Firewalls are placed at the between Distribution and Access Layer of the network.

--> Internal Segmentation Firewalls need to have features such as IPS, Dynamic and Static Routing, Anti Virus, Firewall policies ranging up to Application Layer and Sandboxing.

iii) Next Generation Firewall

--> This is most commonly used mode in enterprise firewalls.

--> Performance requirements are lower as Internet speeds in the enterprise are lower than network speeds.

--> Security throughputs are ranging up to 40 Gbps.

--> Next-Generation Firewalls are placed at the edge of the network ( Between Core Layer and Internet).

--> Next Generation Firewalls will be mostly default gateway for Internal networks as they are placed at the edge of the network.

--> Next Generation Firewalls need to have features such as NAT, IPS, Dynamic and Static Routing, VPN, Anti Virus, Firewall policies ranging up to Application Layer and Web/E-Mail/Content Filtering.

iv) Data Center Firewall

--> Performance and Security requirements are more than the other deployment modes as they need protect servers and applications.


-->  Security throughputs are ranging up to 1 Tbps.

-->  Data Center Firewalls are placed at the DMZ of the network.

--> Data Center Firewalls need to have features such as IPS, Dynamic and Static Routing, Anti Virus, Firewall policies ranging up to Application Layer.


Reference : Fortinet


Md.Kareemoddin


CCIE # 54759










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