Re: kvm.qumranet.com uncontactable?

Alistair John Strachan
2007-08-14T10:17:55Z

On Monday 13 August 2007 09:43:51 Avi Kivity wrote:
> Luca wrote:
> > On 8/12/07, Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org> wrote:
> >> Alistair John Strachan wrote:
> >>> Hi there,
> >>>
> >>> The site at kvm.qumranet.com seems to be inaccessible. My DNS comes
> >>> directly from the root servers, so it is not a DNS issue on my end. I
> >>> seem to be able to traceroute the domain, but a web browser will time
> >>> out.
> >>>
> >>> Supposedly, it's there, as my colleague in the US can access the site,
> >>> but it does not work in the UK (on JANET). Netcraft.com cannot connect
> >>> to it either.
> >>>
> >>> Could somebody please look into this? Thanks.
> >>
> >> I'm just back from travel in the US, and can confirm this. From some
> >> locations, it works well; from others it doesn't work at all; and when
> >> the quantum state is just right you get half your packets dropped.
> >>
> >> I suspect that we just have a bad ISP that doesn't peer well. We'll
> >> work to fix this.
> >
> > Seems more like a firewall or something like that. IP routing is ok, I
> > can reach the server (from Italy) just fine, but nothing responds
> > (nothing at *all*, not event a RST - the same behaviour of iptables
> > DROP target BTW).
>
> Well, when our UDP VPN managed to connect, I saw a lot of packet loss,
> but connectivity was there, which is inconsistent with a firewall. I'll
> ask that the rule restricting ICMP be removed so we can debug more easily.

Seems to be working here again. Thanks.

--
Cheers,
Alistair.

137/1 Warrender Park Road, Edinburgh, UK.