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Zorluk: KolayNAT and PAT Implementation

Match each Network Address Translation (NAT) implementation type on the left with its corresponding address mapping behavior on the right.

  • Static NATMaps a single private IP address to a single public IP address on a permanent 1:1 basis.
  • Dynamic NATMaps private IP addresses to available public IP addresses from a pool on a first-come, first-served basis.
  • Port Address Translation (PAT)Maps multiple private IP addresses to a single public IP address by tracking unique Layer 4 port numbers.

Cevap

Static NAT maps to the permanent 1:1 translation; Dynamic NAT maps to translation using an available pool of public IP addresses; Port Address Translation (PAT) maps to translation using unique Layer 4 port numbers on a single public IP address.
Static NAT assigns a permanent 1:1 mapping between a private and public IP. Dynamic NAT dynamically allocates a public IP address from an IP pool to a private IP host. Port Address Translation (PAT) allows multiple private IP devices to share a single public IP address by assigning unique Layer 4 source port numbers to distinct connections.

Adım Adım Çözüm

1
Analyze Static NAT requirements.
Static NAT provides a constant 1:1 mapping between one private IP and one public IP.
This is used when an internal host, such as a web server, must always be reachable at a fixed public IP address.
2
Analyze Dynamic NAT requirements.
Dynamic NAT selects an unused public IP address from a defined pool for outbound traffic.
The mapping exists only while the session is active and requires as many public IPs in the pool as concurrent outbound users.
3
Analyze PAT (NAT Overload) requirements.
PAT appends source port numbers to differentiate traffic from multiple internal private IPs sharing a single public IP address.
Using source ports allows thousands of internal hosts to access external networks using a single public IPv4 address.

Anahtar Kavram

NAT and PAT Types and Translation Behaviors
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Konular

NAT and PAT Implementation

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