which interface on the instance handles public-facing t…

In a management network scenario, which interface on the instance handles public-facing traffic?

In a management network scenario, which interface on the instance handles public-facing traffic?

A.
Primary network interface

B.
Subnet interface

C.
Secondary network interface

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Ash

Ash

C. Secondary ENI eth1 handles the public facing traffic

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Steve

Steve

You both are wrong. The primary interfae is assigned both the public IP and the private IP for the instance.

Network interface ID
eni-580636e6
Subnet ID
subnet-ca19d581
VPC ID
vpc-ac18eed4
Availability Zone
us-east-1a
MAC address
0a:de:37:49:82:de
Description
Primary network interface
Security groups
lab1-public-sg. view inbound rules
Owner ID
002889752094
Status
in-use
Primary private IPv4 IP
10.100.1.123
Private DNS (IPv4)
–
IPv4 Public IP
34.229.144.145*
Secondary private IPv4 IPs
–
IPv6 IPs
–
Source/dest. check
true
Attachment ID
eni-attach-ba761849
Instance ID
i-0aff99b81fcb6902b
Attachment owner
002889752094
Device index
0
Attachment status
attached
Delete on termination
true
Owner ID
amazon
Allocation ID
–
Assocation ID
–

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Harsha

Harsha

Steve – Check this

http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-eni.html

You can create a management network using network interfaces. “In this scenario, the secondary network interface on the instance handles public-facing traffic” and the primary network interface handles back-end management traffic and is connected to a separate subnet in your VPC that has more restrictive access controls.

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