ip_icmp.h File Reference

---

Detailed Description

Interface control message protocol definitions.

RFC 792.

Defines
#define	ICMP_ECHOREPLY   0
	Echo reply type.
#define	ICMP_UNREACH   3
	Destination unreachable type.
#define	ICMP_UNREACH_NET   0
	Destination unreachable: Bad net code.
#define	ICMP_UNREACH_HOST   1
	Destination unreachable: Bad host.
#define	ICMP_UNREACH_PROTOCOL   2
	Destination unreachable: Bad protocol.
#define	ICMP_UNREACH_PORT   3
	Destination unreachable: Bad port.
#define	ICMP_UNREACH_NEEDFRAG   4
	Destination unreachable: Fragmentation needed.
#define	ICMP_UNREACH_SRCFAIL   5
	Destination unreachable: Source route failed.
#define	ICMP_UNREACH_NET_UNKNOWN   6
	Destination unreachable: Unknown net.
#define	ICMP_UNREACH_HOST_UNKNOWN   7
	Destination unreachable: Unknown host.
#define	ICMP_UNREACH_ISOLATED   8
	Destination unreachable: Source host isolated.
#define	ICMP_UNREACH_NET_PROHIB   9
	Destination unreachable: Net access prohibited.
#define	ICMP_UNREACH_HOST_PROHIB   10
	Destination unreachable: Host access prohibited.
#define	ICMP_UNREACH_TOSNET   11
	Destination unreachable: Bad tos for net.
#define	ICMP_UNREACH_TOSHOST   12
	Destination unreachable: Bad tos for host.
#define	ICMP_SOURCEQUENCH   4
	Packet lost type.
#define	ICMP_REDIRECT   5
	Shorter route type.
#define	ICMP_REDIRECT_NET   0
	Shorter route for network.
#define	ICMP_REDIRECT_HOST   1
	Shorter route for host.
#define	ICMP_REDIRECT_TOSNET   2
	Shorter route for tos and net.
#define	ICMP_REDIRECT_TOSHOST   3
	Shorter route for tos and host.
#define	ICMP_ECHO   8
	Echo reply type.
#define	ICMP_ROUTERADVERT   9
	Router advertisement type.
#define	ICMP_ROUTERSOLICIT   10
	Router solicitation type.
#define	ICMP_TIMXCEED   11
	Time exceeded type.
#define	ICMP_TIMXCEED_INTRANS   0
	Time exceeded in transit.
#define	ICMP_TIMXCEED_REASS   1
	Time exceeded in reassembly.
#define	ICMP_PARAMPROB   12
	Bad IP header type.
#define	ICMP_PARAMPROB_OPTABSENT   1
	Bad IP header: Required option missing.
#define	ICMP_TSTAMP   13
	Timestamp request type.
#define	ICMP_TSTAMPREPLY   14
	Timestamp reply type.
#define	ICMP_IREQ   15
	Information request type.
#define	ICMP_IREQREPLY   16
	Information reply type.
#define	ICMP_MASKREQ   17
	Address mask request type.
#define	ICMP_MASKREPLY   18
	Address mask reply type.
#define	ICMP_MAXTYPE   18
	Maximum ICMP type number.
#define	ICMP_MINLEN   8
	Lower bounds on packet length.
Typedefs
typedef icmp	ICMPHDR
	ICMP protocol header type.

---