CONFIG_NET_TCP_ISN_RFC6528

Use ISN algorithm from RFC 6528

Type: bool

Help

Implement Initial Sequence Number calculation as described in
RFC 6528 chapter 3. https://tools.ietf.org/html/rfc6528
If this is not set, then sys_rand32_get() is used for ISN value.

Direct dependencies

NET_TCP && !NET_RAW_MODE && NETWORKING

(Includes any dependencies from ifs and menus.)

Default

• y

Symbols selected by this symbol

• MBEDTLS

• MBEDTLS_MD

• MBEDTLS_MAC_MD5_ENABLED

Kconfig definition

At <Zephyr>/subsys/net/ip/Kconfig:458

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:44 → <Zephyr>/subsys/Kconfig:39 → <Zephyr>/subsys/net/Kconfig:83

Menu path: (Top) → Sub Systems and OS Services → Networking → Link layer and IP networking support → IP stack → Enable TCP

config NET_TCP_ISN_RFC6528
    bool "Use ISN algorithm from RFC 6528"
    default y
    select MBEDTLS
    select MBEDTLS_MD
    select MBEDTLS_MAC_MD5_ENABLED
    depends on NET_TCP && !NET_RAW_MODE && NETWORKING
    help
      Implement Initial Sequence Number calculation as described in
      RFC 6528 chapter 3. https://tools.ietf.org/html/rfc6528
      If this is not set, then sys_rand32_get() is used for ISN value.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)