Cisco Cisco IOS Software Release 12.4(6)T
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SIP: Cisco IOS SIP Gateway Signaling Support
Over TLS Transport
Over TLS Transport
First Published: February 27, 2006
Last Updated: February 27, 2006
Last Updated: February 27, 2006
This feature module describes the SIP: Cisco IOS SIP Gateway Signaling Support Over TLS Transport
feature which implements the Transport Layer Security (TLS) protocol on the Transmission Control
Protocol (TCP) transport for Cisco IOS SIP Gateways. The feature leverages the existing SIP gateway’s
support of the public-key infrastructure (PKI) (for certificate management) and utilizes TLS
functionality to provide SIP signaling over TLS transport. The use of PKI on the Cisco IOS software
requires that the clock on the session initiation protocol (SIP) gateway be synchronized with the network
time to ensure proper validation of certificates.
feature which implements the Transport Layer Security (TLS) protocol on the Transmission Control
Protocol (TCP) transport for Cisco IOS SIP Gateways. The feature leverages the existing SIP gateway’s
support of the public-key infrastructure (PKI) (for certificate management) and utilizes TLS
functionality to provide SIP signaling over TLS transport. The use of PKI on the Cisco IOS software
requires that the clock on the session initiation protocol (SIP) gateway be synchronized with the network
time to ensure proper validation of certificates.
Note
The SIP: Cisco IOS SIP Gateway Signaling Over TLS Transport feature provides security only to the
device authentication and data encryption of SIP signaling information at the transport layer of the Open
System Interconnection (OSI) model. The authentication of the SIP user itself at the application level is
done using the Digest Mechanism Implemented by the SIP Gateway Authentication feature.
device authentication and data encryption of SIP signaling information at the transport layer of the Open
System Interconnection (OSI) model. The authentication of the SIP user itself at the application level is
done using the Digest Mechanism Implemented by the SIP Gateway Authentication feature.
Finding Feature Information in This Module
Your Cisco IOS software release may not support all of the features documented in this module. To reach
links to specific feature documentation in this module and to see a list of the releases in which each feature is
supported, use the
links to specific feature documentation in this module and to see a list of the releases in which each feature is
supported, use the
.
Finding Support Information for Platforms and Cisco IOS Software Images
Use Cisco Feature Navigator to find information about platform support and Cisco IOS software image
support. Access Cisco Feature Navigator at
support. Access Cisco Feature Navigator at
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