Preloaded dispVMs losing network connectivity

Noticed a strange thing: if I do not run new dispVMs for a while, “old” preloaded dispVMs appear with non-functional networking. I can ping internal qubes network, but outside connectivity does not work – seemingly NAT rules for them expire somehow.

Did you do anything special in the meantime, like suspend / resume, changing a netvm, etc… ?

apparently, no! however, could restart netvm. will try to reproduce.

Please ping me once you can reproduce it (I won’t get notified otherwise).

Also, don’t turn off the disposables once that happens, I will try to provide guidance once that happens.

For now, I’d say, when that happens:

Are you using IPv6?

On the disposable that was preloaded:

ip r
ip -4 a show dev eth0
# if the last command doesn't show enough
ip a

On the netvm:

ip r

Can you see the IP of the disposable in the netvm?

My uplink is v4-only. Did not manage to reproduce the bug yet.

This might fix it:

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