# Before You Configure BGP

Before you attempt to configure BGP, ensure that you have TCP/IP reachability to the BGP peers with which you want your router to communicate. This may include tasks such as setting up interfaces and creating routes.

See the JunosE Link Layer Configuration Guide and JunosE Physical Layer Configuration Guide for information about how to configure appropriate interfaces. See JunosE IP Services Configuration Guide, for information about setting up routing information.