Retaining capability of handling original type messages in an upgraded computer system
First Claim
1. Method of handling messages in an interface between an external network and an internal network comprising the steps of:
- setting a first address according to a first addressing protocol to be used on a first port connected to the external network for transmission of messages according to the first protocol, where transmitted messages comprise messages including embedded messages according to a second addressing protocol and original messages according to the first protocol, assigning a second port connected to a first part of the internal network as a port to be used for all messages not including embedded messages, assigning a second address to the second port, which is closely related to the address of the first port, and informing the first part of the internal network about the second port and its address, such that original messages according to the first protocol can be transferred between the internal network and the external network.
1 Assignment
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Accused Products
Abstract
The present invention relates to a method, a gateway (10), an internal network, a computer program product and a computer program element, where the gateway includes a first port (30) connected to an external network for transmission of messages according to a first protocol and having a first address according to the first protocol, where transmitted messages comprise messages including embedded messages according to a second protocol and original messages according to the first protocol, a second port (32) connected to a first part of the internal network and a control unit (36), which assigns the second port as a port to be used for all messages not including embedded messages, assigns a second address to the second port, which is closely related to the address of the first port, and informs the first part of the internal network about the second port and its address.
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Citations
17 Claims
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1. Method of handling messages in an interface between an external network and an internal network comprising the steps of:
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setting a first address according to a first addressing protocol to be used on a first port connected to the external network for transmission of messages according to the first protocol, where transmitted messages comprise messages including embedded messages according to a second addressing protocol and original messages according to the first protocol, assigning a second port connected to a first part of the internal network as a port to be used for all messages not including embedded messages, assigning a second address to the second port, which is closely related to the address of the first port, and informing the first part of the internal network about the second port and its address, such that original messages according to the first protocol can be transferred between the internal network and the external network. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. Interface device for routing of messages between an external network and an internal network including:
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a first port connectable to the external network for transmission of messages according to a first addressing protocol and having a first address according to the first protocol, where transmitted messages comprise messages including embedded messages according to a second addressing protocol and original messages according to the first protocol, a second port connectable to a first part of the internal network and a control unit arranged to;
assign the second port as a port to be used for all messages not including embedded messages, assign a second address to the second port, which is closely related to the address of the first port, and inform the first part of the internal network about the second port and its address, such that original messages according to the first protocol can be transferred between the internal network and the external network. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An internal network for communicating with an external network comprising:
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a first part and an interface device connectable between the first part and the external network, said interface device comprising;
a first port connectable to the external network for reception of messages sent according to the first protocol and having a first address according to a first addressing protocol, where received messages comprise messages including embedded messages according to a second addressing protocol and original messages according to the first protocol, a second port connected to the first part of the internal network, and a control unit arranged to;
assign the second port as a port to be used for all messages not including embedded messages, assign a second address to the second port, which is closely related to the address of the first port, and inform the first part of the internal network about the second port and its address, such that original messages according to the first protocol can be transferred between the internal network and the external network.
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16. Computer program product comprising a computer readable medium to be used on a computer connectable between an internal and an external network and having a first address according to a first addressing protocol to be used on a first port connectable to the external network for transmission of messages according to the first protocol, where transmitted messages comprise messages including embedded messages according to a second addressing protocol and original messages according to the first protocol, said computer readable medium having thereon:
computer program code means, to make the computer execute, when said program is loaded in the computer;
assigning a second port connectable to a first part of the internal network as a port to be used for messages not including embedded messages, assigning a second address to the second port, which is closely related to the address of the first port, and informing the first part of the internal network about the second port and its address, such that original messages according to the first protocol can be transferred between the internal network and the external network.
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17. Computer program element to be used on a computer connectable between an internal and an external network and having a first address according to a first addressing protocol to be used on a first port connectable to the external network for transmission of messages according to the first protocol, where transmitted messages comprise messages including embedded messages according to a second addressing protocol and original messages according to the first protocol, said computer program element comprising:
computer program code means, to make the computer execute, when said program is loaded in the computer;
assigning a second port connectable to a first part of the internal network as a port to be used for messages not including embedded messages, assigning a second address to the second port, which is closely related to the address of the first port, and informing the first part of the internal network about the second port and its address, such that original messages according to the first protocol can be transferred between the internal network and the external network.
Specification