net.ipv4.ip_forward lxc vm ping DUP

Asked Oct 24 '16 at 17:15

Active Oct 26 '16 at 09:37

Viewed 563 times

I run LXC Linux containers and so I have net.ipv4.ip_forward=1 set on the host so that I can ping internet (google.com) from inside the LXC container.

However, when I run VirtualBox VMs in the same environment and bridge to the wlan wireless interface I get duplicate ICMP packets (DUP!). I can stop the duplicate packets in the VirtualBox VM by setting net.ipv4.ip_forward=0 on the host, but then this breaks the resolution of internet in the LXC containers.

How can I prevent the DUP! pings in the VM and leave net.ipv4.ip_forward=1 set? Thanks.

edited Oct 26 '16 at 09:37

J. Chomel

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asked Oct 24 '16 at 17:15

gstanden

Your question doesn't have much to do with programming. Have you tried _[ServerFault](https://serverfault.com/)_? – J. Chomel Oct 26 '16 at 09:37
Thank you for your reply I will try ServerFault. – gstanden Oct 27 '16 at 19:32

net.ipv4.ip_forward lxc vm ping DUP

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