| IPPROTO_IP(2const) | IPPROTO_IP(2const) |
NAME¶
IPPROTO_IP - Linux IPv4 protocol socket options
LIBRARY¶
Standard C library (libc, -lc)
SYNOPSIS¶
#include <netinet/in.h> /* Definition of IP* constants */ #include <sys/socket.h>
int setsockopt(int sockfd, IPPROTO_IP, int opt,
const void val[size], size_t size);
int getsockopt(int sockfd, IPPROTO_IP, int opt,
void val[size], size_t size);
DESCRIPTION¶
IP supports some protocol-specific socket options that can be set with setsockopt(2) and read with getsockopt(2). The socket option level for IP is IPPROTO_IP.
The following socket options are supported.
- IP_ADD_MEMBERSHIP(2const)
- IP_ADD_SOURCE_MEMBERSHIP(2const)
- IP_BIND_ADDRESS_NO_PORT(2const)
- IP_BLOCK_SOURCE(2const)
- IP_DROP_MEMBERSHIP(2const)
- IP_DROP_SOURCE_MEMBERSHIP(2const)
- IP_FREEBIND(2const)
- IP_HDRINCL(2const)
- IP_LOCAL_PORT_RANGE(2const)
- IP_MSFILTER(2const)
- IP_MTU(2const)
- IP_MTU_DISCOVER(2const)
- IP_MULTICAST_ALL(2const)
- IP_MULTICAST_IF(2const)
- IP_MULTICAST_LOOP(2const)
- IP_MULTICAST_TTL(2const)
- IP_NODEFRAG(2const)
- IP_OPTIONS(2const)
- IP_PASSSEC(2const)
- IP_PKTINFO(2const)
- IP_RECVERR(2const)
- IP_RECVOPTS(2const)
- IP_RECVORIGDSTADDR(2const)
- IP_RECVTOS(2const)
- IP_RECVTTL(2const)
- IP_RETOPTS(2const)
- IP_ROUTER_ALERT(2const)
- IP_TOS(2const)
- IP_TRANSPARENT(2const)
- IP_TTL(2const)
- IP_UNBLOCK_SOURCE(2const)
ERRORS¶
See setsockopt(2). See ip(7).
- ENOPROTOOPT
- opt is invalid.
HISTORY¶
- IPPROTO_IP
- POSIX.1-2001.
SEE ALSO¶
| 2026-01-05 | Linux man-pages (unreleased) |