RockCloud-基石云安全-官方博客
How to Tell If It's Really a CN2 Line: Check AS4809 and 59.43, and Test Both Outbound and Return Paths
A four-step method to verify whether a CN2 line is genuine: use MTR or Traceroute to check ASNs and IP ranges, test the outbound path, then test the return path (which is easier to fake), and finally retest during peak evening hours, examining China Telecom, China Unicom, and China Mobile separately.
CN2 GIA vs CN2 GT: Routing, Peak-Hour Performance, and Selection Criteria
CN2 GT only uses CN2 for the outbound segment, while CN2 GIA uses CN2 from provincial nodes along the entire route. This article explains the differences in routing, peak-hour stability, three-network return paths, and cost, shows how to identify lines with traceroute/MTR, and gives selection advice based on business scenarios.
Understanding CN2 Lines: Pros and Cons of Hong Kong and US CN2
An analysis of China Telecom's CN2 network lines, comparing the advantages and disadvantages of Hong Kong and US CN2 servers.
