amazon web services - Can't attach 2nd interface to ec2 instance -


i've got 2 instances running nicely

web - t2.medium - us-east-1d - private ip - 10.1.1.6 vpn - t2.micro  - us-east-1d - eip assigned

i'm trying add 2nd interface onto vpn server within 10.1.1.0/24 network.

after create interface can't attach vpn. web instance shows attach that's on internal network.

how can 2nd interface within 10.1.1.0/24 network onto vpn server?

vpc setup:

internal: cidr - 10.1.1.0/24      - us-east-1d (web server) vpn:      cidr - 192.168.247.0/24 - us-east-1d (vpn server)

i've tried manage priv ip addresses on vpn server see if assign internal comes with:

"ip address not in subnet"

i need vpn server have 2 network interfaces: 1 public , 1 private/internal.

it looks you're trying assign ip isn't in subnet range. if instance in subnet-foo , subnet-foo us-east-1a 10.1.1.0/24 should work. fail instance if tried attach nic ip 10.0.1.6 in example. error message pretty specific ip address not in subnet cidr rang


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