By using AWS re:Post, you agree to the AWS re:Post Terms of Use
AWS re:Postre:Post

Cannot ping ipv6 lightsail instance

0

Hi, I am trying to ping the public ipv6 address of my lightsail instance using ping6 on my mac book pro but it does not work and just hangs.

ping6 2a05:............. When I Control-c it returns:- 3 packets transmitted, 0 packets received, 100.0% packet loss

The instance is running and is showing the public ipv6 address

Does anyone have any ideas why this ping6 is failing?

Thanks David

  • Adeleke Adebowale J EXPERT
    2 months ago

    Can you ensure that the IPv6 address you are pinging is correct. You can verify this from the Lightsail console: Go to your Lightsail instance's management page. Check the public IPv6 address listed there.

    Also ensure that your instance's firewall/security group rules allow ICMPv6 traffic. By default, Lightsail instances might not allow ICMPv6 (which is required for ping6

Topics
ComputeNetworking & Content Delivery
Tags
Amazon LightsailNetworking & Content DeliveryIPv6
Language
English
David
asked 2 months ago409 views
1 Answer
1

Hello.

Lightsail's default firewall rules do not allow ICMP.
Therefore, change your Lightsail firewall settings to allow ICMP traffic.
https://docs.aws.amazon.com/lightsail/latest/userguide/understanding-firewall-and-port-mappings-in-amazon-lightsail.html#default-lightsail-firewall-rules

I think it is possible to check ping communication with IPv6 if you follow the steps described in the document below.
https://docs.aws.amazon.com/lightsail/latest/userguide/amazon-lightsail-ipv6-reachability.html

profile picture
EXPERT
Riku_Kobayashi
answered 2 months ago
profile pictureAWS
EXPERT
iBehr
reviewed 2 months ago

Relevant content