FIELD: information technology.
SUBSTANCE: invention relates to means for bypassing application layer gateway firewall when establishing RTS connection between RTS client and RTS server. RTS client and RTS server negotiate, when establishing RTS connection, which of firewall ports are required for data packets exchanged over RTS connection, and they use as part of proprietary RTS-signaling protocol at least one standardized message element, by which data that relates to ports to be used can be retrieved. Firewall detects, when establishing RTS connection, by using standardized message item, which of firewall ports have been negotiated by RTS client and RTS server necessary for data packets exchanged over RTS connection, and firewall opens and closes required ports dynamically according to result of matching.
EFFECT: technical result is to provide firewall bypass that meets all security requirements.
7 cl, 5 dwg
