Problems on Kimsufi / Routing Hickups

bsh

@fLoo said:
nameserver 2620:fe::10
nameserver 2620:fe::fe:10

Delete these 2 bad NS. I've tried and found that these two having long response or timeout. Post a traceroute from your KS to these two to know issues (?!)

@fLoo said:

iface eno1 inet6 static
        address 2001:41d0:2:8XXX::1/64
        gateway 2001:41d0:2:8Xff:ff:ff:ff:ff

Try with /48 or /56

Also, you'd need accept_rtadv (Router Advertisement) for IPv6 (strange in aspect of static IPv6), check your sysctl.conf if it has been enabled.

I've used many SyS/KS from both FR and CA, IPv6 in CA seems less stable than in FR

rm_

@fLoo said: Querying DNS via IPv6

Based on the resolv.conf that you posted, you do not appear to query DNS via IPv6.

@fLoo said: it takes ~ 5-10 seconds for OVH routers to build routes so packets start to flow.

Against a bare IP address (with the -n option) or a hostname? If the latter, then could be again something DNS-related.