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Socket Options: IPPROTO_IP

Open topic with navigation CAPL Functions » TCP/IP API » Socket Options » IPPROTO_IP Valid for: CANoe DE • CANoe4SW DE The following socket options can be set at the IPPROTO_IP socket option level in CAPL. They influence the behavior of the IPv4 protocol per socket. For all BOOL typed options a non-zero value will be interpreted as TRUE. Stacks
  • C: Supported by CANoe internal network stack
  • W: Supported by Windows network stack

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Socket Options

  • IP_TOS
    • Set/Get: set/get
    • Description: Set or get the Type of Service field in the IPv4 protocol in outgoing datagrams on this socket. The value has to be in the range from 0-255.
    • Type: DWORD
    • Stack: C/W
  • IP_TTL
    • Set/Get: set/get
    • Description: Set or get the value of the TTL field of the IP header in outgoing datagrams on this socket. The value has to be in the range from 0-255.
    • Type: DWORD (boolean)
    • Stack: C/W
  • IP_MULTICAST_TTL
    • Set/Get: set/get
    • Description: Set or get the value of the TTL field for IPv4 multicast traffic on this socket.
    • Type: DWORD
    • Stack: C/W
  • IP_MULTICAST_LOOP
    • Set/Get: set/get
    • Description: This option controls whether multicast data will be received by a listening socket joined the same multicast group when it is sent on the same node.
    • Type: DWORD (boolean)
    • Stack: C/W
  • IP_DONTFRAGMENT
    • Set/Get: set/get
    • Description: If set to TRUE the don’t fragment flag in the IP header is set and data will not be fragmented anymore. This is only available for UDP sockets.
    • Type: DWORD (boolean)
    • Stack: C/W
  • IP_RECEIVE_BROADCAST
    • Set/Get: set/get
    • Description: Allows or disables the reception of broadcast messages. Only for UDP sockets.
    • Type: DWORD (boolean)
    • Stack: W
  • IP_PORTRANGE
    • Set/Get: set/get
    • Description: Select the range which is used for the unspecified port. The following values are supported:
      • IP_PORTRANGE_DEFAULT (0)
      • IP_PORTRANGE_HIGH (1)
      • IP_PORTRANGE_LOW (2)
    • Type: DWORD
    • Stack: C
  • IP_ONESBCAST
    • Set/Get: set/get
    • Description: When this option is set on a UDP Socket the destination address of outgoing broadcast datagrams will be set to the undirected broadcast address.
    • Type: DWORD (boolean)
    • Stack: C
  • IP_BINDANY
    • Set/Get: set/get
    • Description: It is possible to bind to any address, even one that is not bound to any interface when this option is set to a nonzero value.
    • Type: DWORD (boolean)
    • Stack: C
  • IP_MINTTL
    • Set/Get: set/get
    • Description: Set the minimum acceptable TTL value which a packet must have when it is received. If the TTL value is lower, the packet will be dropped.
    • Type: DWORD
    • Stack: C
See Also