Nic Baxter <nic@nicbaxter.com.au> wrote:
I am totally confused by a networking issue I have. I have 3 servers with Linode and am having problems connecting to 2 of them. I have contaced Linode and they insist everything is OK from their end.
Friends who run Linode instances reported having serious connectivity problems with them over the last week. Thus you are not alone in this respect. It seems the packets are reaching the destination, the echo replies are sent out but never arrive. How many hops are there between the last "good" router at the Linode end and the Linode host? If there is at least one, then that could be the problem. Have you tried a reverse traceroute from the server back to your machine? Perhaps the paths in the "forward" and "reverse" directions are different - I've seen that before. This doesn't help to solve the problem, but if you can work out where it's happening then you'll have data to present to Linode indicative of a network problem. Or maybe it's their upstream, in which case they are the ones who will presumably have to deal with it by contacting the affected "upstream" provider. I think they can use BGP to re-route the traffice if they must. Try to work out which host/network is having the packet loss.