Page permalink Always use the following permalink when referencing this page. It will remain unchanged in future help versions. https://docs.sophos.com/support/surf/en-us/index.html?contextId=network Your browser doesn’t support copying the link to the clipboard. Please copy it manually. Network This page shows the Network Interface information on the SDU/CTR. Was this page helpful? Thank you for your feedback Thank you for your feedback. Help us improve this page by giving us more information.