Examkin

Soru

Zorluk: KolayInside Source NAT and PAT Configuration and Verification

A network administrator is configuring Port Address Translation (PAT) on a Cisco IOS router to allow internal users access to the Internet using a single public IP address assigned to the GigabitEthernet0/1 interface. The administrator has already configured the Access Control List (ACL) and the inside/outside interfaces. What exact Cisco IOS keyword must be appended to the end of the 'ip nat inside source list 1 interface GigabitEthernet0/1' command to enable port-level address translation?

Cevap: overload / the overload keyword / overload keyword

Cevap

overload
The 'overload' keyword instructs the Cisco IOS router to perform Port Address Translation (PAT), enabling multiple private IPv4 addresses to share a single public IP address by tracking source port numbers.

Adım Adım Çözüm

1
Identify the requirement for Port Address Translation (PAT) using an interface IP address.
PAT enables multiple private IP addresses to share a single public IP address by mapping distinct layer 4 port numbers.
Without the overload capability, static NAT or standard dynamic NAT requires a 1-to-1 IP mapping.
2
Determine the necessary Cisco IOS command syntax.
The command syntax is 'ip nat inside source list <acl> interface <interface> overload'.
The 'overload' keyword specifically enables PAT, allowing port tracking for dynamic address translation.

Anahtar Kavram

Port Address Translation (PAT) Interface Overload Syntax
Bu soruyu puanla

Konular

Inside Source NAT and PAT Configuration and Verification

Bu konudan daha fazla soru