pSOSystem System Calls - Read

ioctl pNA+ System Calls
};
* IP address for the route. */
unsigned short rt_flags; /* Specifies the type of route*/
unsigned short reserved; /* Reserved */
unsigned long rt_netmask; /* netmask of route */
long rt_ifno; /* interface number */
unsigned long reserved2[2]; /* Reserved */
The rt_flags element can contain one or more of the symbolic constants below
(defined in pna.h), in the following syntax:
RTF_MASK | RTF_GATEWAY
Symbolic Constant Description
RTF_HOST Host entry (net otherwise).
RTF_GATEWAY Destination is a gateway.
RTF_UP Route is usable.
RTF_DYNAMIC Route is added dynamically using the ICMP Redirect message.
RTF_MODIFIED Route is modified using the ICMP Redirect message.
RTF_INTF Route includes intf num.
RTF_MASK Route includes subnet mask.
Network Node ID Operations
The following operations are available for accessing the pNA+ Network Node ID. This
is also known as the Router ID. The Network Node ID may be equal to any one of the
IP addresses assigned to the node. To set or get the Network Node ID, arg must
point to an in_addr structure containing the IP address.
Operation Description
SIOCSNNODEID Sets the Network Node ID.
SIOCGNNODEID Gets the Network Node ID.
Setting the IP TTL
Each IP packet sent by pNA+ (TCP/UDP or Raw IP) is assigned a TTL value. pNA+
assigns a default TTL value of 64 for outgoing UDP and TCP packets as per RFC
1700. Note that this system wide default value affects all sockets. The system wide
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