On Sat, 2019-02-02 at 12:01 +0000, Patrick O'Callaghan wrote:
On Sat, 2019-02-02 at 10:55 +0800, Ed Greshko wrote:
> On 2/2/19 6:13 AM, Patrick O'Callaghan wrote:
> > On Fri, 2019-02-01 at 17:55 +0000, Patrick O'Callaghan wrote:
> > > They both show *the same MAC address*: 52:54:00:8b:88:60, which looks
> > > at least suspicious.
> > Correction: the address being shown (while arp is still working) is
> > that of the gateway, so naturally it's the same in both guests.
> >
> OK, I misunderstood what you were saying.
>
> Yes, arp should return the MAC addresses of the gateway. And, incomplete does
confirm
> that communication has been lost between the guest and the gateway.
>
> Ahh.....can't think of what to try next.
Yes, I'm at a loss. Note that in all cases the IPv6 connection keeps
working. I'll either BZ it or look for a libvirt list to ask on.
Thanks again Ed.
poc
Last ditch left-field idea: I have a (commercial) VPN service which is
not normally turned on but does have a systemd daemon running. I turned
it off and everything started working.
I am now looking at 3 Fedora guests and a Windows guest all connected
and even able to ping each other.
I think the VPN daemon was messing with the firewall. I'll have to see
what to do about that but for now, it looks like this was the culprit
all along. Who knew?
Apologies for wasting everyone's time, but maybe there's a lesson here
somewhere ...
poc