Block Multiple Client-Initiated TLS Renegotiations

The device can block client-initiated TLS renegotiations (handshakes). This is useful for preventing DoS attacks on the device caused by multiple TLS renegotiations per second of the encrypted key initiated by the attacker.

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To block multiple client-initiated TLS renegotiations:

1.

Open the TLS Contexts table (Setup menu > IP Network tab > Security folder > TLS Contexts).

2.

For the relevant TLS Context, from the 'TLS Renegotiation' drop-down list, select Disable:

Blocking TLS Renegotiations