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Security Considerations Connected: An Internet Encyclopedia
Security Considerations

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Security Considerations

Security Considerations

BGP provides flexible and extendible mechanism for authentication and security. The mechanism allows to support schemes with various degree of complexity. All BGP sessions are authenticated based on the BGP Identifier of a peer. In addition, all BGP sessions are authenticated based on the autonomous system number advertised by a peer. As part of the BGP authentication mechanism, the protocol allows to carry encrypted digital signature in every BGP message. All authentication failures result in sending the NOTIFICATION messages and immediate termination of the BGP connection.

Since BGP runs over TCP and IP, BGP's authentication scheme may be augmented by any authentication or security mechanism provided by either TCP or IP.

However, since BGP runs over TCP and IP, BGP is vulnerable to the same denial of service or authentication attacks that are present in any other TCP based protocol.

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Connected: An Internet Encyclopedia
Security Considerations


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