An example of the present disclosure provides a method of selecting access. The method of selecting access may include the steps of: selecting a first access point name (APN) that does not support IP flow mobility and seamless offload (IFOM) according to a first setting related to APN-based routing; checking a preferred flag when wireless local area network (WLAN) access for the IFOM is selected according to a second setting related to routing resulting in a collision between the first setting and the second setting; and using any one of the first setting and the second setting according to the preferred flag.