A communications device, wherein the communications device comprises: a forwarding module and one or more interfaces, wherein: the forwarding module is configured to: receive a data packet sent to a receive end; determine, according to a correspondence between data filtering template information of the data packet and interface information in forwarding information maintained by the forwarding module, an interface for forwarding the data packet to the receive end, wherein if data packet transmission is performed by using a specific radio access technology between the communications device and a next hop to which the communications device forwards the data packet, the interface is an interface corresponding to the radio access technology; and forward the data packet to the interface; wherein the data filtering template information of the data packet is Internet Protocol, IP, 5-tuple information, Multiprotocol Label Switching, MPLS, label information, or Virtual Local Area Network, VLAN, label information in header information of the data packet; and the interface is configured to: receive the data packet sent by the forwarding module, and forward the data packet; wherein the forwarding information further comprises bearer information of the data packet; the forwarding module is further configured to: determine, by using a correspondence between the data filtering template information of the data packet and the bearer information in the forwarding information, a bearer used for forwarding the data packet; attach a label to the data packet, wherein the label is used to identify that the data packet is forwarded by using the bearer; and send the data packet with the label to the interface; and the interface is further configured to forward the data packet according to the label and by using the bearer. the forwarding module is configured to: receive a data packet sent to a receive end; determine, according to a correspondence between data filtering template information of the data packet and interface information in forwarding information maintained by the forwarding module, an interface for forwarding the data packet to the receive end, wherein if data packet transmission is performed by using a specific radio access technology between the communications device and a next hop to which the communications device forwards the data packet, the interface is an interface corresponding to the radio access technology; and forward the data packet to the interface; wherein the data filtering template information of the data packet is Internet Protocol, IP, 5-tuple information, Multiprotocol Label Switching, MPLS, label information, or Virtual Local Area Network, VLAN, label information in header information of the data packet; and the interface is configured to: receive the data packet sent by the forwarding module, and forward the data packet; wherein the forwarding information further comprises bearer information of the data packet; the forwarding module is further configured to: determine, by using a correspondence between the data filtering template information of the data packet and the bearer information in the forwarding information, a bearer used for forwarding the data packet; attach a label to the data packet, wherein the label is used to identify that the data packet is forwarded by using the bearer; and send the data packet with the label to the interface; and the interface is further configured to forward the data packet according to the label and by using the bearer.