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Re: Duda Ping

--- Ricardo Eureka! <ricardoeureka@gmail.com>
escribió:

> Se que es algo repetitivo lo mio, pero.....probaste
> con man ping?
> 

Si, probe con man ping pero no me saco la duda, 

       Gracias  a todos por la info, a veces uno se
enrieda.

OPTIONS


-a
 Audible ping. 
-A
 Adaptive ping. Interpacket interval adapts to
round-trip time, so that effectively not more than one
(or more, if preload is set) unanswered probes present
in the network. Minimal interval is 200msec for not
super-user. On networks with low rtt this mode is
essentially equivalent to flood mode. 
-b
 Allow pinging a broadcast address. 
-B
 Do not allow ping to change source address of probes.
The address is bound to one selected when ping starts.

-c count
 Stop after sending count ECHO_REQUEST packets. With
deadline option, ping waits for count ECHO_REPLY
packets, until the timeout expires. 
-d
 Set the SO_DEBUG option on the socket being used.
Essentially, this socket option is not used by Linux
kernel. 
-F flow label
 Allocate and set 20 bit flow label on echo request
packets. (Only ping6). If value is zero, kernel
allocates random flow label. 
-f
 Flood ping. For every ECHO_REQUEST sent a period
``.'' is printed, while for ever ECHO_REPLY received a
backspace is printed. This provides a rapid display of
how many packets are being dropped. If interval is not
given, it sets interval to zero and outputs packets as
fast as they come back or one hundred times per
second, whichever is more. Only the super-user may use
this option with zero interval. 
-i interval
 Wait interval seconds between sending each packet.
The default is to wait for one second between each
packet normally, or not to wait in flood mode. Only
super-user may set interval to values less 0.2
seconds. 
-I interface address
 Set source address to specified interface address.
Argument may be numeric IP address or name of device.
When pinging IPv6 link-local address this option is
required. 
-l preload
 If preload is specified, ping sends that many packets
not waiting for reply. Only the super-user may select
preload more than 3. 
-L
 Suppress loopback of multicast packets. This flag
only applies if the ping destination is a multicast
address. 
-n
 Numeric output only. No attempt will be made to
lookup symbolic names for host addresses. 
-p pattern
 You may specify up to 16 ``pad'' bytes to fill out
the packet you send. This is useful for diagnosing
data-dependent problems in a network. For example, -p
ff will cause the sent packet to be filled with all
ones. 
-Q tos
 Set Quality of Service -related bits in ICMP
datagrams. tos can be either decimal or hex number.
Traditionally (RFC1349), these have been interpreted
as: 0 for reserved (currently being redefined as
congestion control), 1-4 for Type of Service and 5-7
for Precedence. Possible settings for Type of Service
are: minimal cost: 0x02, reliability: 0x04,
throughput: 0x08, low delay: 0x10. Multiple TOS bits
should not be set simultaneously. Possible settings
for special Precedence range from priority (0x20) to
net control (0xe0). You must be root (CAP_NET_ADMIN
capability) to use Critical or higher precedence
value. You cannot set bit 0x01 (reserved) unless ECN
has been enabled in the kernel. In RFC2474, these
fields has been redefined as 8-bit Differentiated
Services (DS), consisting of: bits 0-1 of separate
data (ECN will be used, here), and bits 2-7 of
Differentiated Services Codepoint (DSCP). 
-q
 Quiet output. Nothing is displayed except the summary
lines at startup time and when finished. 
-R
 Record route. Includes the RECORD_ROUTE option in the
ECHO_REQUEST packet and displays the route buffer on
returned packets. Note that the IP header is only
large enough for nine such routes. Many hosts ignore
or discard this option. 
-r
 Bypass the normal routing tables and send directly to
a host on an attached interface. If the host is not on
a directly-attached network, an error is returned.
This option can be used to ping a local host through
an interface that has no route through it provided the
option -I is also used. 
-s packetsize
 Specifies the number of data bytes to be sent. The
default is 56, which translates into 64 ICMP data
bytes when combined with the 8 bytes of ICMP header
data. 
-S sndbuf
 Set socket sndbuf. If not specified, it is selected
to buffer not more than one packet. 
-t ttl
 Set the IP Time to Live. 
-T timestamp option
 Set special IP timestamp options. timestamp option
may be either tsonly (only timestamps), tsandaddr
(timestamps and addresses) or tsprespec host1 [host2
[host3 [host4]]] (timestamp prespecified hops). 
-M hint
 Select Path MTU Discovery strategy. hint may be
either do (prohibit fragmentation, even local one),
want (do PMTU discovery, fragment locally when packet
size is large), or dont (do not set DF flag). 
-U
 Print full user-to-user latency (the old behaviour).
Normally ping prints network round trip time, which
can be different f.e. due to DNS failures. 
-v
 Verbose output. 
-V
 Show version and exit. 
-w deadline
 Specify a timeout, in seconds, before ping exits
regardless of how many packets have been sent or
received. In this case ping does not stop after count
packet are sent, it waits either for deadline expire
or until count probes are answered or for some error
notification from network. 
-W timeout
 Time to wait for a response, in seconds. The option
affects only timeout in absense of any responses,
otherwise ping waits for two RTTs. 

Tambien en Wikipedia

http://es.wikipedia.org/wiki/Ping



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|     Ricardo Delgado       |
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|gusanos no, porque todo lo |
|que hacen es cavar         |
|y arrastrarse."            |
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