The real reason people are having problems connecting to SRO
Posted: Wed Sep 27, 2006 9:46 pm
Suprise!
The issue is not Joymax, @Home, Adelphia, Time Warner, Charter, or Comcast's fault.
As many of you know, SRO is located in Korea. What has happened is that Korea has updated its international routing tables. This has left most providers without access to the proper records and left searching for the host. There are two ways to prove this.
1. http://www.traceroute.org - Run a trace from any US router listed there to either of SRO's IP addresses. The trace will die at a random router within Korea. There are some of those traces that will complete. The reason is that the change to the tables has propogated to their network.
2. As you can see with most of the in network traces here, most users are dying before even getting off their ISP's backbone. The reason for this is because of the way routing is set up. When you send your packets from your cable, dsl, dial up modem they must pass through a series of routers either due to OSPF or static routing. If using static, there is a definite path known and the packet will continue until a destination is unreachable. With OSPF, or open shortest path first, routing the destination must broadcast the location of the host in order for the packet to find its destination. If no path is broadcast the packet hops along the backbone until it gives up and "times out".
Also, for those who believe that you cannot access SRO due to DNS or reverse DNS issues, you honestly do not understand DNS. All reverse DNS does is points a mail server to its host. What on earth do you care if SRO's mail server is pointing to its host for? You all received misinformation from your ISPs with that regard, however, they are all correct in telling you the issue is on SROs end. Though in a way, it isn't on their end either. I hope this makes sense to everyone.
The issue is not Joymax, @Home, Adelphia, Time Warner, Charter, or Comcast's fault.
As many of you know, SRO is located in Korea. What has happened is that Korea has updated its international routing tables. This has left most providers without access to the proper records and left searching for the host. There are two ways to prove this.
1. http://www.traceroute.org - Run a trace from any US router listed there to either of SRO's IP addresses. The trace will die at a random router within Korea. There are some of those traces that will complete. The reason is that the change to the tables has propogated to their network.
2. As you can see with most of the in network traces here, most users are dying before even getting off their ISP's backbone. The reason for this is because of the way routing is set up. When you send your packets from your cable, dsl, dial up modem they must pass through a series of routers either due to OSPF or static routing. If using static, there is a definite path known and the packet will continue until a destination is unreachable. With OSPF, or open shortest path first, routing the destination must broadcast the location of the host in order for the packet to find its destination. If no path is broadcast the packet hops along the backbone until it gives up and "times out".
Also, for those who believe that you cannot access SRO due to DNS or reverse DNS issues, you honestly do not understand DNS. All reverse DNS does is points a mail server to its host. What on earth do you care if SRO's mail server is pointing to its host for? You all received misinformation from your ISPs with that regard, however, they are all correct in telling you the issue is on SROs end. Though in a way, it isn't on their end either. I hope this makes sense to everyone.