A method performed in an Interaction Gateway, IGW, located between a Packet Data Network, PDN, and a user plane gateway of a communication network used by a service client for service level communication with a service provider, in which communication network there is a first and a second communication bearer (106,107) between a radio device, comprising the service client, and the user plane gateway via a Radio Access Network, RAN, where the second communication bearer is associated with the service level communication, for establishing a first interaction session on the second communication bearer between the IGW and the service client for controlling the service level communication, and for establishing a second interaction session between the IGW and the RAN, the method comprising: obtaining an initialization message addressed to the IGW by means of default IGW address information via the first bearer, for initiating the first interaction session, the initialization message comprising service level address information used for the service level communication; determining first dedicated IGW address information for the first interaction session and second dedicated IGW address information for the second interaction session; initiating sending of a confirmation message comprising the determined first dedicated IGW address information to the service client; and ensuring that the first interaction session, using the first dedicated IGW address information, and the second interaction session, using the second dedicated IGW address information, are associated with the second communication bearer wherein the ensuring comprises initiating sending a message comprising the determined first dedicated IGW address information as well as the service level address information to a Policy and Charging Rules Function, PCRF, or to an Application Function, AF, for initiating setting up of a filter, e.g. a Traffic Flow Template, TFT, in the radio device and/or in a Core Network, CN, of the communication network for mapping IP data packets associated with the determined first dedicated IGW address information to the second communication bearer. obtaining an initialization message addressed to the IGW by means of default IGW address information via the first bearer, for initiating the first interaction session, the initialization message comprising service level address information used for the service level communication; determining first dedicated IGW address information for the first interaction session and second dedicated IGW address information for the second interaction session; initiating sending of a confirmation message comprising the determined first dedicated IGW address information to the service client; and ensuring that the first interaction session, using the first dedicated IGW address information, and the second interaction session, using the second dedicated IGW address information, are associated with the second communication bearer wherein the ensuring comprises initiating sending a message comprising the determined first dedicated IGW address information as well as the service level address information to a Policy and Charging Rules Function, PCRF, or to an Application Function, AF, for initiating setting up of a filter, e.g. a Traffic Flow Template, TFT, in the radio device and/or in a Core Network, CN, of the communication network for mapping IP data packets associated with the determined first dedicated IGW address information to the second communication bearer.