Based on network analysis and language preference, we we will be implementing a change where SWG users in South Korea will have anycast traffic directed to our data center in Singapore. Anycast routing often directs South Korean user traffic to our data centers in Japan or Hong Kong, and while this offers the least hops and lowest latency the language change can negatively impact user experience.
This change only affects AnyConnect SWG, PAC file, and proxy chaining deployments. IPsec tunnels and DNS are not affected.
Country-level redirection of traffic is done sparingly by our operations teams because of the wide-ranging implications, and this change was made in careful consideration of our customers' desires. This change will go into effect the week of 27th March, 2023. If you have any concerns please contact Umbrella Support.