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1. Click the Create TLS Profile ( ) icon at the top of the TLS Profile page.

   Create TLS - SBC SWe Edge and SBC 1000/2000

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   Create TLS Profile - SBC CNe Edge 

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TLS Profile - Field Definitions

TLS Protocol

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Specifies the TLS Protocol. Valid entries: TLS 1.0 Only, TLS 1.2 Only, or TLS 1.0 - 1.2. Once the TLS is option is selected, the Client Cipher List is automatically updated to display only the ciphers supported for the selected TLS version. 

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Mutual Authentication

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Enables the Mutual authentication request and verifications of the SIP peer client certificate.

Note
This setting is part of the standard level of Mutual TLS security. Mutual Authentication includes a check on the certificate dates for certificate validity and whether the certificate is signed by a local trusted root CA.

Handshake Inactivity Timeout

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Specifies the SIP TLS client and server handshake inactivity timeout interval.

The Inactivity Timeout terminates the TLS session if there have been no handshakes in the specified period of time.
The handshake inactivity timeout should be adjusted to 30 seconds if there are network delays and/or timeouts.

Client Cipher List

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Specifies the cipher suite parameter exchanged and negotiated in the SIP TLS client handshake message. The list is automatically populated with the ciphers supported for the selected TLS Protocol

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For

Spacevars
0 series3

 and SBC 1000/2000: 

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The 

Spacevars
0 product

supports the following TLS cipher suites:

• TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
• TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 
• TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
• TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
• TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
• TLS_RSA_WITH_3DES_EDE_CBC_SHA
• TLS_RSA_WITH_AES_256_CBC_SHA256
• TLS_RSA_WITH_AES_128_CBC_SHA256
• TLS_RSA_WITH_AES256_CBC_SHA
• TLS_RSA_WITH_AES128_CBC_SHA
• TLS_RSA_WITH_DES_CBC_SHA

Note
title Lync Cipher Incompatability
The TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA is incompatible with Lync servers. For Spacevars 0 series5 : The  Spacevars 0 series5 supports the following TLS cipher suites: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 TLS_RSA_WITH_AES_256_CBC_SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 TLS_RSA_WITH_AES256_CBC_SHA TLS_RSA_WITH_AES128_CBC_SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA

Info
The cipher list must be provided while configuring SBC using REST. The SBC will try to use the existing cipher list configured when setting the TLS Protocol; if this matches the TLS Protocol being configured it will be successful. If it does not match or the Client Cipher List is empty then the REST command will be rejectedOnly 3 ciphers are allowed per profile in the Spacevars 0 series5 cluster.

Verify Peer Server Certificate

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Specifies whether or not to verify the identity of a peer server. Available when Mutual Authentication is disabled.

Validate Server FQDN

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The Validate Server FQDN is an enhanced security feature of the

Spacevars
0 product

, which is disabled if the common name in the certificate is an IP address ( a practice observed by some ITSP's). This field is only visible when Mutual Authentication is disabled and Validate Peer Server Certificate.

Validate Server FQDN (enabled) option allows the 

Spacevars
0 product

to perform an FQDN match of an incoming peer certificate common name (CN) or Subject Alternate Name (SAN) against the host that is configured in the SIP Server table of 

Spacevars
0 product

(protocol must be TLS and the Host must be in the form of FQDN).

Note
Spacevars 0 product  does not validate IP addresses to identify a peer server, but only Fully Qualified Domain Names (FQDN). Make sure this parameter is set to Disabled if the peer server is using an IP address.

Certificate (Client Attributes)

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Specifies the certificate (primary or supplementary) that is in use and that the

Spacevars
0 product2

sends when the

Spacevars
0 product2

receives the certificate request from the destination endpoint during the Mutual TLS handshake process. The client attributes of the TLS profile associate with the SIP Server Table entries configured for the TLS protocol. The default is the primary certificate.

Validate Client FQDN

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Specifies the reverse DNS lookup of a peer's FQDN. Used to verify the identity of the SIP peer client certificate.

This action takes place when both, Mutual Authentication and Validate Client FQDN are enabled. If Mutual Authentication is disabled, the Validate Client FQDN is also disabled. Validate Client FQDN is an enhanced security feature of

Spacevars
0 product

, which could be disabled if the common name in the certificate is an IP address (some ITSP's do that). When the Validate Client FQDN is enabled, this option allows 

Spacevars
0 product

to perform an FQDN match of an incoming peer certificate common name (CN) or Subject Alternate Name (SAN) against a reverse DNS lookup of the IP address to an FQDN.

Note
Spacevars 0 product  does not validate IP addresses to identify a peer server, but only Fully Qualified Domain Names (FQDN).

Certificate (Server Attributes)

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Specifies the certificate (primary or supplementary) that is in use and that the 

Spacevars
0 product2

sends to the endpoint that initiates the TLS handshake process. The server attributes of the TLS profile associate with the SIP SG Listener Port entries configured for the TLS protocol. The default is the primary certificate.