The method of performing local routing comprises configuring a next hop and a destination IAB address in a first IAB node based on an IAB donor, receiving a V2X message from a first terminal accessing the first IAB node, and transmitting the V2X message to a second terminal accessing a second IAB node through the second IAB node based on the local routing. When the first IAB node receives the V2X message from the first terminal through a V2X radio bearer, a backhaul adaptation protocol (BAP) packet data unit (PDU) comprising a BAP header with a V2X local routing bit set to enable and the V2X message may be generated, and the V2X message may be transmitted to the second terminal through the second IAB node based on a BAP layer.