Andy Smith <[email protected]> wrote: > Hi, > > On Mon, Jul 06, 2026 at 07:02:38PM +0200, Nicolas George wrote: > > Are you sure of your numbers? For a host two gigabit switches away, I am > > already at 0.390/0.676/0.806/0.112 ms. That a random host on the > > Internet would happen to be at 0.6 ms from you seems really unlikely to > > me. > > The destination (2a00:1098:82::6:1), judging by reverse DNS and RTT > time, is in Sovereign House datacentre (London Docklands). The host I > traced from is in another Docklands datacentre probably less than 1 mile > away. The IONOS VPS is a fair bit further away than that. > > $ mtr -rc 10 2a00:1098:82::6:1 > Start: 2026-07-06T17:08:10+0000 > HOST: use Loss% Snt Last Avg Best Wrst StDev > 1.|-- strugglers.ipv6.bitfolk.c 0.0% 10 0.2 0.2 0.2 0.4 0.1 > 2.|-- e4a.jump.net.uk 0.0% 10 0.4 0.4 0.3 0.4 0.0 > 3.|-- c4.jump.net.uk 0.0% 10 0.4 0.6 0.3 1.9 0.5 > 4.|-- i1b.jump.net.uk 0.0% 10 0.4 0.4 0.3 0.6 0.1 > 5.|-- router-ths-a.mythic-beast 0.0% 10 0.3 0.3 0.2 0.5 0.1 > 6.|-- router-sov-c.mythic-beast 0.0% 10 0.4 0.4 0.3 0.5 0.1 > 7.|-- spine-sov-20-1.mythic-bea 0.0% 10 0.7 0.6 0.4 0.7 0.1 > 8.|-- leaf-sov-20-1.mythic-beas 0.0% 10 0.7 0.7 0.5 1.0 0.2 > 9.|-- vds-sov-ab.mythic-beasts. 0.0% 10 0.6 0.6 0.4 0.7 0.1 > 10.|-- caracal.mythic-beasts.com 0.0% 10 0.8 0.8 0.6 0.9 0.1 > > > $ mtr -rc 10 213.171.194.64 > Start: 2026-07-06T17:13:33+0000 > HOST: use Loss% Snt Last Avg Best Wrst StDev > 1.|-- pisang.bitfolk.com 0.0% 10 0.2 0.2 0.1 0.3 0.1 > 2.|-- e4a.jump.net.uk 0.0% 10 0.3 0.3 0.2 0.4 0.1 > 3.|-- c3.jump.net.uk 0.0% 10 0.3 0.3 0.3 0.4 0.1 > 4.|-- i1b.jump.net.uk 0.0% 10 0.3 0.3 0.2 0.4 0.1 > 5.|-- linx.bb-d.ba.slo.gb.onean 0.0% 10 1.5 1.4 1.1 1.5 0.1 > 6.|-- lo-0.rc-b.ce6.wtr.gb.net. 0.0% 10 6.3 6.3 6.1 6.4 0.1 > 7.|-- po1-2.nf1-bp1-l1.ce6.wtr. 0.0% 10 5.9 5.8 5.8 5.9 0.0 > 8.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 > > The first 4 hops are still inside London - jump.net.uk is my colo > provider so I can tell you where that 4th hop router physically is. Hop 5 is a > little further away and by the "slo.gb" I'm going to guess is one of the > big Slough datacentres. I don't know what "wtr.gb"¹ might be but as it's > 5ms further away I will guess it's either in the North of England, or > Scotland. > > Anyway, the IPv4 is ~5ms more distant than the IPv6 so barring > shenanigans they are not the same device. > See my earlier reply. I think the IPV6 address is plain wrong as a result of a failed attempt to move the domain hosting to Mythic Beasts.
-- Chris Green ·
