---
title: tls.client.iana_chosen_cipher_id
summary: null
url: >-
  https://www.fastly.com/documentation/reference/vcl/variables/client-connection/tls-client-iana-chosen-cipher-id
---

**Type:** INTEGER  
**Access:** read-only

**Available in:** recv, hash, deliver, log

The cipher suite as an IANA identifier used to secure the client TLS connection (see the IANA [TLS Cipher Suites](https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-4) protocol registry for more information). Returns `0` if the connection wasn't established over TLS.

## Examples

`49199`, standing for `0xC0, 0x2F`, corresponding to `TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256`