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authorChris Johns <chrisj@rtems.org>2016-11-08 21:33:20 +1100
committerChris Johns <chrisj@rtems.org>2016-11-08 21:33:20 +1100
commitbf61a8b14e57ef56e8f5e190e9bdd0ba5db16a6f (patch)
treecca300e6dd29b3539aac4946e4316515ac89ebe8 /shell/network_commands.rst
parentwaf: Get a copy of the optional packages. (diff)
downloadrtems-docs-bf61a8b14e57ef56e8f5e190e9bdd0ba5db16a6f.tar.bz2
shell: Update commands to use descriptions.
Diffstat (limited to 'shell/network_commands.rst')
-rw-r--r--shell/network_commands.rst1022
1 files changed, 508 insertions, 514 deletions
diff --git a/shell/network_commands.rst b/shell/network_commands.rst
index 985706a..5deaa73 100644
--- a/shell/network_commands.rst
+++ b/shell/network_commands.rst
@@ -27,190 +27,191 @@ This section details the Network Commands available. A subsection is dedicated
to each of the commands and describes the behavior and configuration of that
command as well as providing an example usage.
+.. raw:: latex
+
+ \clearpage
+
.. _netstats:
netstats - obtain network statistics
------------------------------------
.. index:: netstats
-**SYNOPSYS:**
-
-.. code-block:: shell
-
- netstats [-Aimfpcut]
-
-**DESCRIPTION:**
-
-This command is used to display various types of network statistics. The
-information displayed can be specified using command line arguments in various
-combinations. The arguments are interpreted as follows:
-
-*-A*
- print All statistics
-
-*-i*
- print Inet Routes
-
-*-m*
- print MBUF Statistics
-
-*-f*
- print IF Statistics
-
-*-p*
- print IP Statistics
-
-*-c*
- print ICMP Statistics
+SYNOPSYS:
+ .. code-block:: shell
-*-u*
- print UDP Statistics
+ netstats [-Aimfpcut]
-*-t*
- print TCP Statistics
+DESCRIPTION:
+ This command is used to display various types of network statistics. The
+ information displayed can be specified using command line arguments in
+ various combinations. The arguments are interpreted as follows:
-**EXIT STATUS:**
+ *-A*
+ print All statistics
-This command returns 0 on success and non-zero if an error is encountered.
+ *-i*
+ print Inet Routes
-**NOTES:**
+ *-m*
+ print MBUF Statistics
-NONE
+ *-f*
+ print IF Statistics
-**EXAMPLES:**
+ *-p*
+ print IP Statistics
-The following is an example of using the ``netstats`` command to print the IP
-routing table:
+ *-c*
+ print ICMP Statistics
-.. code-block:: shell
+ *-u*
+ print UDP Statistics
- [/] $ netstats -i
- Destination Gateway/Mask/Hw Flags Refs Use Expire Interface
- default 192.168.1.14 UGS 0 0 0 eth1
- 192.168.1.0 255.255.255.0 U 0 0 1 eth1
- 192.168.1.14 00:A0:C8:1C:EE:28 UHL 1 0 1219 eth1
- 192.168.1.51 00:1D:7E:0C:D0:7C UHL 0 840 1202 eth1
- 192.168.1.151 00:1C:23:B2:0F:BB UHL 1 23 1219 eth1
+ *-t*
+ print TCP Statistics
-The following is an example of using the ``netstats`` command to print the MBUF
-statistics:
+EXIT STATUS:
+ This command returns 0 on success and non-zero if an error is encountered.
-.. code-block:: shell
+NOTES:
+ NONE
+
+EXAMPLES:
+ The following is an example of using the ``netstats`` command to print the
+ IP routing table:
- [/] $ netstats -m
- ************ MBUF STATISTICS ************
- mbufs:2048 clusters: 128 free: 63
- drops: 0 waits: 0 drains: 0
- free:1967 data:79 header:2 socket:0
- pcb:0 rtable:0 htable:0 atable:0
- soname:0 soopts:0 ftable:0 rights:0
- ifaddr:0 control:0 oobdata:0
+ .. code-block:: shell
-The following is an example of using the ``netstats`` command to print the
-print the interface statistics:
+ [/] $ netstats -i
+ Destination Gateway/Mask/Hw Flags Refs Use Expire Interface
+ default 192.168.1.14 UGS 0 0 0 eth1
+ 192.168.1.0 255.255.255.0 U 0 0 1 eth1
+ 192.168.1.14 00:A0:C8:1C:EE:28 UHL 1 0 1219 eth1
+ 192.168.1.51 00:1D:7E:0C:D0:7C UHL 0 840 1202 eth1
+ 192.168.1.151 00:1C:23:B2:0F:BB UHL 1 23 1219 eth1
-.. code-block:: shell
+ The following is an example of using the ``netstats`` command to print the
+ MBUF statistics:
- [/] $ netstats -f
- ************ INTERFACE STATISTICS ************
- ***** eth1 *****
- Ethernet Address: 00:04:9F:00:5B:21
- Address:192.168.1.244 Broadcast Address:192.168.1.255 Net mask:255.255.255.0
- Flags: Up Broadcast Running Active Multicast
- Send queue limit:50 length:1 Dropped:0
- Rx Interrupts:889 Not First:0 Not Last:0
- Giant:0 Non-octet:0
- Bad CRC:0 Overrun:0 Collision:0
- Tx Interrupts:867 Deferred:0 Late Collision:0
- Retransmit Limit:0 Underrun:0 Misaligned:0
+ .. code-block:: shell
-The following is an example of using the ``netstats`` command to print the
-print IP statistics:
+ [/] $ netstats -m
+ ************ MBUF STATISTICS ************
+ mbufs:2048 clusters: 128 free: 63
+ drops: 0 waits: 0 drains: 0
+ free:1967 data:79 header:2 socket:0
+ pcb:0 rtable:0 htable:0 atable:0
+ soname:0 soopts:0 ftable:0 rights:0
+ ifaddr:0 control:0 oobdata:0
-.. code-block:: shell
+ The following is an example of using the ``netstats`` command to print the
+ print the interface statistics:
- [/] $ netstats -p
- ************ IP Statistics ************
- total packets received 894
- packets rcvd for unreachable dest 13
- datagrams delivered to upper level 881
- total ip packets generated here 871
+ .. code-block:: shell
-The following is an example of using the ``netstats`` command to print the ICMP
-statistics:
+ [/] $ netstats -f
+ ************ INTERFACE STATISTICS ************
+ ***** eth1 *****
+ Ethernet Address: 00:04:9F:00:5B:21
+ Address:192.168.1.244 Broadcast Address:192.168.1.255 Net mask:255.255.255.0
+ Flags: Up Broadcast Running Active Multicast
+ Send queue limit:50 length:1 Dropped:0
+ Rx Interrupts:889 Not First:0 Not Last:0
+ Giant:0 Non-octet:0
+ Bad CRC:0 Overrun:0 Collision:0
+ Tx Interrupts:867 Deferred:0 Late Collision:0
+ Retransmit Limit:0 Underrun:0 Misaligned:0
-.. code-block:: shell
+ The following is an example of using the ``netstats`` command to print the
+ print IP statistics:
- [/] $ netstats -c
- ************ ICMP Statistics ************
- Type 0 sent 843
- number of responses 843
- Type 8 received 843
+ .. code-block:: shell
-The following is an example of using the ``netstats`` command to print the UDP
-statistics:
+ [/] $ netstats -p
+ ************ IP Statistics ************
+ total packets received 894
+ packets rcvd for unreachable dest 13
+ datagrams delivered to upper level 881
+ total ip packets generated here 871
-.. code-block:: shell
+ The following is an example of using the ``netstats`` command to print the
+ ICMP statistics:
+
+ .. code-block:: shell
- [/] $ netstats -u
- ************ UDP Statistics ************
-
-The following is an example of using the ``netstats`` command to print the TCP
-statistics:
-
-.. code-block:: shell
-
- [/] $ netstats -t
- ************ TCP Statistics ************
- connections accepted 1
- connections established 1
- segs where we tried to get rtt 34
- times we succeeded 35
- delayed acks sent 2
- total packets sent 37
- data packets sent 35
- data bytes sent 2618
- ack-only packets sent 2
- total packets received 47
- packets received in sequence 12
- bytes received in sequence 307
- rcvd ack packets 35
- bytes acked by rcvd acks 2590
- times hdr predict ok for acks 27
- times hdr predict ok for data pkts 10
-
-**CONFIGURATION:**
+ [/] $ netstats -c
+ ************ ICMP Statistics ************
+ Type 0 sent 843
+ number of responses 843
+ Type 8 received 843
+
+ The following is an example of using the ``netstats`` command to print the
+ UDP statistics:
+
+ .. code-block:: shell
+
+ [/] $ netstats -u
+ ************ UDP Statistics ************
+
+ The following is an example of using the ``netstats`` command to print the
+ TCP statistics:
+
+ .. code-block:: shell
+
+ [/] $ netstats -t
+ ************ TCP Statistics ************
+ connections accepted 1
+ connections established 1
+ segs where we tried to get rtt 34
+ times we succeeded 35
+ delayed acks sent 2
+ total packets sent 37
+ data packets sent 35
+ data bytes sent 2618
+ ack-only packets sent 2
+ total packets received 47
+ packets received in sequence 12
+ bytes received in sequence 307
+ rcvd ack packets 35
+ bytes acked by rcvd acks 2590
+ times hdr predict ok for acks 27
+ times hdr predict ok for data pkts 10
.. index:: CONFIGURE_SHELL_NO_COMMAND_NETSTATS
.. index:: CONFIGURE_SHELL_COMMAND_NETSTATS
-This command is included in the default shell command set. When building a
-custom command set, define ``CONFIGURE_SHELL_COMMAND_NETSTATS`` to have this
-command included.
+CONFIGURATION:
+ This command is included in the default shell command set. When building a
+ custom command set, define ``CONFIGURE_SHELL_COMMAND_NETSTATS`` to have
+ this command included.
-This command can be excluded from the shell command set by defining
-``CONFIGURE_SHELL_NO_COMMAND_NETSTATS`` when all shell commands have been
-configured.
-
-**PROGRAMMING INFORMATION:**
+ This command can be excluded from the shell command set by defining
+ ``CONFIGURE_SHELL_NO_COMMAND_NETSTATS`` when all shell commands have been
+ configured.
.. index:: rtems_shell_rtems_main_netstats
-The ``netstats`` is implemented by a C language function
-which has the following prototype:
+PROGRAMMING INFORMATION:
+ The ``netstats`` is implemented by a C language function which has the
+ following prototype:
+
+ .. code-block:: c
+
+ int rtems_shell_rtems_main_netstats(
+ int argc,
+ char **argv
+ );
-.. code-block:: c
+ The configuration structure for the ``netstats`` has the following prototype:
- int rtems_shell_rtems_main_netstats(
- int argc,
- char **argv
- );
+ .. code-block:: c
-The configuration structure for the ``netstats`` has the following prototype:
+ extern rtems_shell_cmd_t rtems_shell_NETSTATS_Command;
-.. code-block:: c
+.. raw:: latex
- extern rtems_shell_cmd_t rtems_shell_NETSTATS_Command;
+ \clearpage
.. _ifconfig:
@@ -218,79 +219,77 @@ ifconfig - configure a network interface
----------------------------------------
.. index:: ifconfig
-**SYNOPSYS:**
-
-.. code-block:: shell
-
- ifconfig
- ifconfig interface
- ifconfig interface \[up|down]
- ifconfig interface \[netmask|pointtopoint|broadcast] IP
-
-**DESCRIPTION:**
-
-This command may be used to display information about the network interfaces in
-the system or configure them.
-
-**EXIT STATUS:**
-
-This command returns 0 on success and non-zero if an error is encountered.
+SYNOPSYS:
+ .. code-block:: shell
-**NOTES:**
+ ifconfig
+ ifconfig interface
+ ifconfig interface \[up|down]
+ ifconfig interface \[netmask|pointtopoint|broadcast] IP
-Just like its counterpart on GNU/Linux and BSD systems, this command is
-complicated. More example usages would be a welcome submission.
+DESCRIPTION:
+ This command may be used to display information about the network
+ interfaces in the system or configure them.
-**EXAMPLES:**
+EXIT STATUS:
+ This command returns 0 on success and non-zero if an error is encountered.
-The following is an example of how to use ``ifconfig``:
+NOTES:
+ Just like its counterpart on GNU/Linux and BSD systems, this command is
+ complicated. More example usages would be a welcome submission.
-.. code-block:: shell
+EXAMPLES:
+ The following is an example of how to use ``ifconfig``:
- ************ INTERFACE STATISTICS ************
- ***** eth1 *****
- Ethernet Address: 00:04:9F:00:5B:21
- Address:192.168.1.244 Broadcast Address:192.168.1.255 Net mask:255.255.255.0
- Flags: Up Broadcast Running Active Multicast
- Send queue limit:50 length:1 Dropped:0
- Rx Interrupts:5391 Not First:0 Not Last:0
- Giant:0 Non-octet:0
- Bad CRC:0 Overrun:0 Collision:0
- Tx Interrupts:5256 Deferred:0 Late Collision:0
- Retransmit Limit:0 Underrun:0 Misaligned:0
+ .. code-block:: shell
-**CONFIGURATION:**
+ ************ INTERFACE STATISTICS ************
+ ***** eth1 *****
+ Ethernet Address: 00:04:9F:00:5B:21
+ Address:192.168.1.244 Broadcast Address:192.168.1.255 Net mask:255.255.255.0
+ Flags: Up Broadcast Running Active Multicast
+ Send queue limit:50 length:1 Dropped:0
+ Rx Interrupts:5391 Not First:0 Not Last:0
+ Giant:0 Non-octet:0
+ Bad CRC:0 Overrun:0 Collision:0
+ Tx Interrupts:5256 Deferred:0 Late Collision:0
+ Retransmit Limit:0 Underrun:0 Misaligned:0
.. index:: CONFIGURE_SHELL_NO_COMMAND_IFCONFIG
.. index:: CONFIGURE_SHELL_COMMAND_IFCONFIG
-This command is included in the default shell command set. When building a
-custom command set, define ``CONFIGURE_SHELL_COMMAND_IFCONFIG`` to have this
-command included.
+CONFIGURATION:
+ This command is included in the default shell command set. When building a
+ custom command set, define ``CONFIGURE_SHELL_COMMAND_IFCONFIG`` to have
+ this command included.
-This command can be excluded from the shell command set by defining
-``CONFIGURE_SHELL_NO_COMMAND_IFCONFIG`` when all shell commands have been
-configured.
-
-**PROGRAMMING INFORMATION:**
+ This command can be excluded from the shell command set by defining
+ ``CONFIGURE_SHELL_NO_COMMAND_IFCONFIG`` when all shell commands have been
+ configured.
.. index:: rtems_shell_rtems_main_ifconfig
-The ``ifconfig`` is implemented by a C language function which has the
-following prototype:
+PROGRAMMING INFORMATION:
+ The ``ifconfig`` is implemented by a C language function which has the
+ following prototype:
+
+ .. code-block:: c
+
+ int rtems_shell_rtems_main_ifconfig(
+ int argc,
+ char **argv
+ );
-.. code-block:: c
+ The configuration structure for the ``ifconfig`` has the following
+ prototype:
- int rtems_shell_rtems_main_ifconfig(
- int argc,
- char **argv
- );
+ .. code-block:: c
-The configuration structure for the ``ifconfig`` has the following prototype:
+ extern rtems_shell_cmd_t rtems_shell_IFCONFIG_Command;
-.. code-block:: c
+.. raw:: latex
- extern rtems_shell_cmd_t rtems_shell_IFCONFIG_Command;
+ \clearpage
.. _route:
@@ -298,101 +297,98 @@ route - show or manipulate the ip routing table
-----------------------------------------------
.. index:: route
-**SYNOPSYS:**
-
-.. code-block:: shell
-
- route [subcommand] [args]
-
-**DESCRIPTION:**
-
-This command is used to display and manipulate the routing table. When invoked
-with no arguments, the current routing information is displayed. When invoked
-with the subcommands ``add`` or ``del``, then additional arguments must be
-provided to describe the route.
-
-Command templates include the following:
-
-.. code-block:: shell
-
- route [add|del] -net IP_ADDRESS gw GATEWAY_ADDRESS [netmask MASK]
- route [add|del] -host IP_ADDRESS gw GATEWAY_ADDRES [netmask MASK]
-
-When not provided the netmask defaults to ``255.255.255.0``
-
-**EXIT STATUS:**
-
-This command returns 0 on success and non-zero if an error is encountered.
-
-**NOTES:**
-
-Just like its counterpart on GNU/Linux and BSD systems, this command is
-complicated. More example usages would be a welcome submission.
-
-**EXAMPLES:**
-
-The following is an example of how to use ``route`` to display, add, and delete
-a new route:
-
-.. code-block:: shell
-
- [/] $ route
- Destination Gateway/Mask/Hw Flags Refs Use Expire Interface
- default 192.168.1.14 UGS 0 0 0 eth1
- 192.168.1.0 255.255.255.0 U 0 0 1 eth1
- 192.168.1.14 00:A0:C8:1C:EE:28 UHL 1 0 1444 eth1
- 192.168.1.51 00:1D:7E:0C:D0:7C UHL 0 10844 1202 eth1
- 192.168.1.151 00:1C:23:B2:0F:BB UHL 2 37 1399 eth1
- [/] $ route add -net 192.168.3.0 gw 192.168.1.14
- [/] $ route
- Destination Gateway/Mask/Hw Flags Refs Use Expire Interface
- default 192.168.1.14 UGS 0 0 0 eth1
- 192.168.1.0 255.255.255.0 U 0 0 1 eth1
- 192.168.1.14 00:A0:C8:1C:EE:28 UHL 2 0 1498 eth1
- 192.168.1.51 00:1D:7E:0C:D0:7C UHL 0 14937 1202 eth1
- 192.168.1.151 00:1C:23:B2:0F:BB UHL 2 96 1399 eth1
- 192.168.3.0 192.168.1.14 UGS 0 0 0 eth1
- [/] $ route del -net 192.168.3.0 gw 192.168.1.14
- [/] $ route
- Destination Gateway/Mask/Hw Flags Refs Use Expire Interface
- default 192.168.1.14 UGS 0 0 0 eth1
- 192.168.1.0 255.255.255.0 U 0 0 1 eth1
- 192.168.1.14 00:A0:C8:1C:EE:28 UHL 1 0 1498 eth1
- 192.168.1.51 00:1D:7E:0C:D0:7C UHL 0 15945 1202 eth1
- 192.168.1.151 00:1C:23:B2:0F:BB UHL 2 117 1399 eth1
-
-**CONFIGURATION:**
+SYNOPSYS:
+ .. code-block:: shell
+
+ route [subcommand] [args]
+
+DESCRIPTION:
+ This command is used to display and manipulate the routing table. When
+ invoked with no arguments, the current routing information is displayed.
+ When invoked with the subcommands ``add`` or ``del``, then additional
+ arguments must be provided to describe the route.
+
+ Command templates include the following:
+
+ .. code-block:: shell
+
+ route [add|del] -net IP_ADDRESS gw GATEWAY_ADDRESS [netmask MASK]
+ route [add|del] -host IP_ADDRESS gw GATEWAY_ADDRES [netmask MASK]
+
+ When not provided the netmask defaults to ``255.255.255.0``
+
+EXIT STATUS:
+ This command returns 0 on success and non-zero if an error is encountered.
+
+NOTES:
+ Just like its counterpart on GNU/Linux and BSD systems, this command is
+ complicated. More example usages would be a welcome submission.
+
+EXAMPLES:
+ The following is an example of how to use ``route`` to display, add, and
+ delete a new route:
+
+ .. code-block:: shell
+
+ [/] $ route
+ Destination Gateway/Mask/Hw Flags Refs Use Expire Interface
+ default 192.168.1.14 UGS 0 0 0 eth1
+ 192.168.1.0 255.255.255.0 U 0 0 1 eth1
+ 192.168.1.14 00:A0:C8:1C:EE:28 UHL 1 0 1444 eth1
+ 192.168.1.51 00:1D:7E:0C:D0:7C UHL 0 10844 1202 eth1
+ 192.168.1.151 00:1C:23:B2:0F:BB UHL 2 37 1399 eth1
+ [/] $ route add -net 192.168.3.0 gw 192.168.1.14
+ [/] $ route
+ Destination Gateway/Mask/Hw Flags Refs Use Expire Interface
+ default 192.168.1.14 UGS 0 0 0 eth1
+ 192.168.1.0 255.255.255.0 U 0 0 1 eth1
+ 192.168.1.14 00:A0:C8:1C:EE:28 UHL 2 0 1498 eth1
+ 192.168.1.51 00:1D:7E:0C:D0:7C UHL 0 14937 1202 eth1
+ 192.168.1.151 00:1C:23:B2:0F:BB UHL 2 96 1399 eth1
+ 192.168.3.0 192.168.1.14 UGS 0 0 0 eth1
+ [/] $ route del -net 192.168.3.0 gw 192.168.1.14
+ [/] $ route
+ Destination Gateway/Mask/Hw Flags Refs Use Expire Interface
+ default 192.168.1.14 UGS 0 0 0 eth1
+ 192.168.1.0 255.255.255.0 U 0 0 1 eth1
+ 192.168.1.14 00:A0:C8:1C:EE:28 UHL 1 0 1498 eth1
+ 192.168.1.51 00:1D:7E:0C:D0:7C UHL 0 15945 1202 eth1
+ 192.168.1.151 00:1C:23:B2:0F:BB UHL 2 117 1399 eth1
.. index:: CONFIGURE_SHELL_NO_COMMAND_ROUTE
.. index:: CONFIGURE_SHELL_COMMAND_ROUTE
-This command is included in the default shell command set. When building a
-custom command set, define ``CONFIGURE_SHELL_COMMAND_ROUTE`` to have this
-command included.
-
-This command can be excluded from the shell command set by defining
-``CONFIGURE_SHELL_NO_COMMAND_ROUTE`` when all shell commands have been
-configured.
+CONFIGURATION:
+ This command is included in the default shell command set. When building a
+ custom command set, define ``CONFIGURE_SHELL_COMMAND_ROUTE`` to have this
+ command included.
-**PROGRAMMING INFORMATION:**
+ This command can be excluded from the shell command set by defining
+ ``CONFIGURE_SHELL_NO_COMMAND_ROUTE`` when all shell commands have been
+ configured.
.. index:: rtems_shell_rtems_main_route
-The ``route`` is implemented by a C language function which has the following
-prototype:
+PROGRAMMING INFORMATION:
+ The ``route`` is implemented by a C language function which has the
+ following prototype:
-.. code-block:: c
+ .. code-block:: c
- int rtems_shell_rtems_main_route(
- int argc,
- char **argv
- );
+ int rtems_shell_rtems_main_route(
+ int argc,
+ char **argv
+ );
-The configuration structure for the ``route`` has the following prototype:
+ The configuration structure for the ``route`` has the following prototype:
-.. code-block:: c
+ .. code-block:: c
- extern rtems_shell_cmd_t rtems_shell_ROUTE_Command;
+ extern rtems_shell_cmd_t rtems_shell_ROUTE_Command;
+
+.. raw:: latex
+
+ \clearpage
.. _ping:
@@ -400,255 +396,253 @@ ping - ping a host or IP address
--------------------------------
.. index:: ping
-**SYNOPSYS:**
-
-.. code-block:: shell
-
- ping [-AaDdfnoQqRrv] [-c count] [-G sweepmaxsize] [-g sweepminsize]
- [-h sweepincrsize] [-i wait] [-l preload] [-M mask | time] [-m ttl]
- [-p pattern] [-S src_addr] [-s packetsize] [-t timeout]
- [-W waittime] [-z tos] host
- ping [-AaDdfLnoQqRrv] [-c count] [-I iface] [-i wait] [-l preload]
- [-M mask | time] [-m ttl] [-p pattern] [-S src_addr]
- [-s packetsize] [-T ttl] [-t timeout] [-W waittime]
- [-z tos] mcast-group
-
-**DESCRIPTION:**
-
-The ping utility uses the ICMP protocol's mandatory ECHO_REQUEST datagram to
-elicit an ICMP ECHO_RESPONSE from a host or gateway. ECHO_REQUEST datagrams
-("pings") have an IP and ICMP header, followed by a "struct timeval" and then
-an arbitrary number of "pad" bytes used to fill out the packet. The options
-are as follows:
-
-*-A*
- Audible. Output a bell (ASCII 0x07) character when no packet is received
- before the next packet is transmitted. To cater for round-trip times that
- are longer than the interval between transmissions, further missing packets
- cause a bell only if the maximum number of unreceived packets has
- increased.
-
-*-a*
- Audible. Include a bell (ASCII 0x07) character in the output when any
- packet is received. This option is ignored if other format options are
- present.
-
-*-c count*
- Stop after sending (and receiving) count ECHO_RESPONSE packets. If this
- option is not specified, ping will operate until interrupted. If this
- option is specified in conjunction with ping sweeps, each sweep will
- consist of count packets.
-
-*-D*
- Set the Don't Fragment bit.
-
-*-d*
- Set the SO_DEBUG option on the socket being used.
-
-*-f*
- Flood ping. Outputs packets as fast as they come back or one hundred times
- per second, whichever is more. For every ECHO_REQUEST sent a period "." is
- printed, while for every ECHO_REPLY received a backspace is printed. This
- provides a rapid display of how many packets are being dropped. Only the
- super-user may use this option. This can be very hard on a network and
- should be used with caution.
-
-*-G sweepmaxsize*
- Specify the maximum size of ICMP payload when sending sweeping pings. This
- option is required for ping sweeps.
-
-*-g sweepminsize*
- Specify the size of ICMP payload to start with when sending sweeping pings.
- The default value is 0.
-
-*-h sweepincrsize*
- Specify the number of bytes to increment the size of ICMP payload after
- each sweep when sending sweeping pings. The default value is 1.
-
-*-I iface*
- Source multicast packets with the given interface address. This flag only
- applies if the ping destination is a multicast address.
-
-*-i wait*
- Wait wait seconds between sending each packet. The default is to wait for
- one second between each packet. The wait time may be fractional, but only
- the super-user may specify values less than 1 second. This option is
- incompatible with the -f option.
-
-*-L*
- Suppress loopback of multicast packets. This flag only applies if the ping
- destination is a multicast address.
-
-*-l preload*
- If preload is specified, ping sends that many packets as fast as possible
- before falling into its normal mode of behavior. Only the super-user may
- use this option.
-
-*-M mask | time*
- Use ICMP_MASKREQ or ICMP_TSTAMP instead of ICMP_ECHO. For mask, print the
- netmask of the remote machine. Set the net.inet.icmp.maskrepl MIB variable
- to enable ICMP_MASKREPLY. For time, print the origination, reception and
- transmission timestamps.
-
-*-m ttl*
- Set the IP Time To Live for outgoing packets. If not specified, the kernel
- uses the value of the net.inet.ip.ttl MIB variable.
-
-*-n*
- Numeric output only. No attempt will be made to lookup symbolic names for
- host addresses.
-
-*-o*
- Exit successfully after receiving one reply packet.
-
-*-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*
- Somewhat quiet output. Don't display ICMP error messages that are in
- response to our query messages. Originally, the -v flag was required to
- display such errors, but -v displays all ICMP error messages. On a busy
- machine, this output can be overbear- ing. Without the -Q flag, ping
- prints out any ICMP error mes- sages caused by its own ECHO_REQUEST
- messages.
-
-*-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; the traceroute(8) command is
- usually better at determining the route packets take to a particular
- destination. If more routes come back than should, such as due to an
- illegal spoofed packet, ping will print the route list and then truncate it
- at the correct spot. Many hosts ignore or discard the RECORD_ROUTE option.
-
-*-r*
- Bypass the normal routing tables and send directly to a host on an attached
- network. 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 (e.g., after the interface was
- dropped).
-
-*-S src_addr*
- Use the following IP address as the source address in outgoing packets. On
- hosts with more than one IP address, this option can be used to force the
- source address to be something other than the IP address of the interface
- the probe packet is sent on. If the IP address is not one of this
- machine's interface addresses, an error is returned and nothing is sent.
-
-*-s packetsize*
- Specify 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. Only the super-user may specify val- ues more than default.
- This option cannot be used with ping sweeps.
-
-*-T ttl*
- Set the IP Time To Live for multicasted packets. This flag only applies if
- the ping destination is a multicast address.
-
-*-t timeout*
- Specify a timeout, in seconds, before ping exits regardless of how many
- packets have been received.
-
-*-v*
- Verbose output. ICMP packets other than ECHO_RESPONSE that are received
- are listed.
-
-*-W waittime*
- Time in milliseconds to wait for a reply for each packet sent. If a reply
- arrives later, the packet is not printed as replied, but considered as
- replied when calculating statistics.
-
-*-z tos*
- Use the specified type of service.
-
-**EXIT STATUS:**
-
-The ping utility exits with one of the following values:
-
-0 At least one response was heard from the specified host.
-
-2 The transmission was successful but no responses were
- received.
-
-any other value an error occurred. These values are defined in <sysexits.h>.
-
-**NOTES:**
-
-When using ping for fault isolation, it should first be run on the local host,
-to verify that the local network interface is up and running. Then, hosts and
-gateways further and further away should be "pinged". Round-trip times and
-packet loss statistics are computed. If duplicate packets are received, they
-are not included in the packet loss calculation, although the round trip time
-of these packets is used in calculating the round-trip time statistics. When
-the specified number of packets have been sent a brief summary is displayed,
-showing the number of packets sent and received, and the minimum, mean,
-maximum, and standard deviation of the round-trip times.
-
-This program is intended for use in network testing, measurement and
-management. Because of the load it can impose on the network, it is unwise to
-use ping during normal operations or from automated scripts.
-
-This command can fail if more than the FD_SET size number of file descriptors
-are open.
-
-**EXAMPLES:**
-
-The following is an example of how to use ``oing`` to ping:
-
-.. code-block:: shell
-
- [/] # ping 10.10.10.1
- PING 10.10.10.1 (10.10.10.1): 56 data bytes
- 64 bytes from 10.10.10.1: icmp_seq=0 ttl=63 time=0.356 ms
- 64 bytes from 10.10.10.1: icmp_seq=1 ttl=63 time=0.229 ms
- 64 bytes from 10.10.10.1: icmp_seq=2 ttl=63 time=0.233 ms
- 64 bytes from 10.10.10.1: icmp_seq=3 ttl=63 time=0.235 ms
- 64 bytes from 10.10.10.1: icmp_seq=4 ttl=63 time=0.229 ms
- --- 10.10.10.1 ping statistics ---
- 5 packets transmitted, 5 packets received, 0.0% packet loss
- round-trip min/avg/max/stddev = 0.229/0.256/0.356/0.050 ms
- [/] # ping -f -c 10000 10.10.10.1
- PING 10.10.10.1 (10.10.10.1): 56 data bytes
- .
- --- 10.10.10.1 ping statistics ---
- 10000 packets transmitted, 10000 packets received, 0.0% packet loss
- round-trip min/avg/max/stddev = 0.154/0.225/0.533/0.027 ms
-
-**CONFIGURATION:**
+SYNOPSYS:
+ .. code-block:: shell
+
+ ping [-AaDdfnoQqRrv] [-c count] [-G sweepmaxsize] [-g sweepminsize]
+ [-h sweepincrsize] [-i wait] [-l preload] [-M mask | time] [-m ttl]
+ [-p pattern] [-S src_addr] [-s packetsize] [-t timeout]
+ [-W waittime] [-z tos] host
+ ping [-AaDdfLnoQqRrv] [-c count] [-I iface] [-i wait] [-l preload]
+ [-M mask | time] [-m ttl] [-p pattern] [-S src_addr]
+ [-s packetsize] [-T ttl] [-t timeout] [-W waittime]
+ [-z tos] mcast-group
+
+DESCRIPTION:
+ The ping utility uses the ICMP protocol's mandatory ECHO_REQUEST datagram
+ to elicit an ICMP ECHO_RESPONSE from a host or gateway. ECHO_REQUEST
+ datagrams ("pings") have an IP and ICMP header, followed by a "struct
+ timeval" and then an arbitrary number of "pad" bytes used to fill out the
+ packet. The options are as follows:
+
+ *-A*
+ Audible. Output a bell (ASCII 0x07) character when no packet is
+ received before the next packet is transmitted. To cater for
+ round-trip times that are longer than the interval between
+ transmissions, further missing packets cause a bell only if the maximum
+ number of unreceived packets has increased.
+
+ *-a*
+ Audible. Include a bell (ASCII 0x07) character in the output when any
+ packet is received. This option is ignored if other format options are
+ present.
+
+ *-c count*
+ Stop after sending (and receiving) count ECHO_RESPONSE packets. If
+ this option is not specified, ping will operate until interrupted. If
+ this option is specified in conjunction with ping sweeps, each sweep
+ will consist of count packets.
+
+ *-D*
+ Set the Don't Fragment bit.
+
+ *-d*
+ Set the SO_DEBUG option on the socket being used.
+
+ *-f*
+ Flood ping. Outputs packets as fast as they come back or one hundred
+ times per second, whichever is more. For every ECHO_REQUEST sent a
+ period "." is printed, while for every ECHO_REPLY received a backspace
+ is printed. This provides a rapid display of how many packets are
+ being dropped. Only the super-user may use this option. This can be
+ very hard on a network and should be used with caution.
+
+ *-G sweepmaxsize*
+ Specify the maximum size of ICMP payload when sending sweeping pings.
+ This option is required for ping sweeps.
+
+ *-g sweepminsize*
+ Specify the size of ICMP payload to start with when sending sweeping
+ pings. The default value is 0.
+
+ *-h sweepincrsize*
+ Specify the number of bytes to increment the size of ICMP payload after
+ each sweep when sending sweeping pings. The default value is 1.
+
+ *-I iface*
+ Source multicast packets with the given interface address. This flag
+ only applies if the ping destination is a multicast address.
+
+ *-i wait*
+ Wait wait seconds between sending each packet. The default is to wait
+ for one second between each packet. The wait time may be fractional,
+ but only the super-user may specify values less than 1 second. This
+ option is incompatible with the -f option.
+
+ *-L*
+ Suppress loopback of multicast packets. This flag only applies if the
+ ping destination is a multicast address.
+
+ *-l preload*
+ If preload is specified, ping sends that many packets as fast as
+ possible before falling into its normal mode of behavior. Only the
+ super-user may use this option.
+
+ *-M mask | time*
+ Use ICMP_MASKREQ or ICMP_TSTAMP instead of ICMP_ECHO. For mask, print
+ the netmask of the remote machine. Set the net.inet.icmp.maskrepl MIB
+ variable to enable ICMP_MASKREPLY. For time, print the origination,
+ reception and transmission timestamps.
+
+ *-m ttl*
+ Set the IP Time To Live for outgoing packets. If not specified, the
+ kernel uses the value of the net.inet.ip.ttl MIB variable.
+
+ *-n*
+ Numeric output only. No attempt will be made to lookup symbolic names
+ for host addresses.
+
+ *-o*
+ Exit successfully after receiving one reply packet.
+
+ *-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*
+ Somewhat quiet output. Don't display ICMP error messages that are in
+ response to our query messages. Originally, the -v flag was required
+ to display such errors, but -v displays all ICMP error messages. On a
+ busy machine, this output can be overbear- ing. Without the -Q flag,
+ ping prints out any ICMP error mes- sages caused by its own
+ ECHO_REQUEST messages.
+
+ *-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; the
+ traceroute(8) command is usually better at determining the route
+ packets take to a particular destination. If more routes come back
+ than should, such as due to an illegal spoofed packet, ping will print
+ the route list and then truncate it at the correct spot. Many hosts
+ ignore or discard the RECORD_ROUTE option.
+
+ *-r*
+ Bypass the normal routing tables and send directly to a host on an
+ attached network. 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 (e.g., after the
+ interface was dropped).
+
+ *-S src_addr*
+ Use the following IP address as the source address in outgoing packets.
+ On hosts with more than one IP address, this option can be used to
+ force the source address to be something other than the IP address of
+ the interface the probe packet is sent on. If the IP address is not
+ one of this machine's interface addresses, an error is returned and
+ nothing is sent.
+
+ *-s packetsize*
+ Specify 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. Only the super-user may specify val- ues more than
+ default. This option cannot be used with ping sweeps.
+
+ *-T ttl*
+ Set the IP Time To Live for multicasted packets. This flag only
+ applies if the ping destination is a multicast address.
+
+ *-t timeout*
+ Specify a timeout, in seconds, before ping exits regardless of how many
+ packets have been received.
+
+ *-v*
+ Verbose output. ICMP packets other than ECHO_RESPONSE that are
+ received are listed.
+
+ *-W waittime*
+ Time in milliseconds to wait for a reply for each packet sent. If a
+ reply arrives later, the packet is not printed as replied, but
+ considered as replied when calculating statistics.
+
+ *-z tos*
+ Use the specified type of service.
+
+EXIT STATUS:
+ The ping utility exits with one of the following values:
+
+ 0 At least one response was heard from the specified host.
+
+ 2 The transmission was successful but no responses were
+ received.
+
+ any other value an error occurred. These values are defined in
+ <sysexits.h>.
+
+NOTES:
+ When using ping for fault isolation, it should first be run on the local
+ host, to verify that the local network interface is up and running. Then,
+ hosts and gateways further and further away should be "pinged". Round-trip
+ times and packet loss statistics are computed. If duplicate packets are
+ received, they are not included in the packet loss calculation, although
+ the round trip time of these packets is used in calculating the round-trip
+ time statistics. When the specified number of packets have been sent a
+ brief summary is displayed, showing the number of packets sent and
+ received, and the minimum, mean, maximum, and standard deviation of the
+ round-trip times.
+
+ This program is intended for use in network testing, measurement and
+ management. Because of the load it can impose on the network, it is unwise
+ to use ping during normal operations or from automated scripts.
+
+ This command can fail if more than the FD_SET size number of file
+ descriptors are open.
+
+EXAMPLES:
+ The following is an example of how to use ``oing`` to ping:
+
+ .. code-block:: shell
+
+ [/] # ping 10.10.10.1
+ PING 10.10.10.1 (10.10.10.1): 56 data bytes
+ 64 bytes from 10.10.10.1: icmp_seq=0 ttl=63 time=0.356 ms
+ 64 bytes from 10.10.10.1: icmp_seq=1 ttl=63 time=0.229 ms
+ 64 bytes from 10.10.10.1: icmp_seq=2 ttl=63 time=0.233 ms
+ 64 bytes from 10.10.10.1: icmp_seq=3 ttl=63 time=0.235 ms
+ 64 bytes from 10.10.10.1: icmp_seq=4 ttl=63 time=0.229 ms
+ --- 10.10.10.1 ping statistics ---
+ 5 packets transmitted, 5 packets received, 0.0% packet loss
+ round-trip min/avg/max/stddev = 0.229/0.256/0.356/0.050 ms
+ [/] # ping -f -c 10000 10.10.10.1
+ PING 10.10.10.1 (10.10.10.1): 56 data bytes
+ .
+ --- 10.10.10.1 ping statistics ---
+ 10000 packets transmitted, 10000 packets received, 0.0% packet loss
+ round-trip min/avg/max/stddev = 0.154/0.225/0.533/0.027 ms
.. index:: CONFIGURE_SHELL_NO_COMMAND_PING
.. index:: CONFIGURE_SHELL_COMMAND_PING
-This command is included in the default shell command set. When building a
-custom command set, define ``CONFIGURE_SHELL_COMMAND_PING`` to have this
-command included.
-
-This command can be excluded from the shell command set by defining
-``CONFIGURE_SHELL_NO_COMMAND_PING`` when all shell commands have been
-configured.
+CONFIGURATION:
+ This command is included in the default shell command set. When building a
+ custom command set, define ``CONFIGURE_SHELL_COMMAND_PING`` to have this
+ command included.
-**PROGRAMMING INFORMATION:**
+ This command can be excluded from the shell command set by defining
+ ``CONFIGURE_SHELL_NO_COMMAND_PING`` when all shell commands have been
+ configured.
.. index:: rtems_shell_rtems_main_ping
-The ``ping`` is implemented by a C language function which has the following
-prototype:
+PROGRAMMING INFORMATION:
+ The ``ping`` is implemented by a C language function which has the following
+ prototype:
-.. code-block:: c
+ .. code-block:: c
- int rtems_shell_rtems_main_ping(
- int argc,
- char **argv
- );
+ int rtems_shell_rtems_main_ping(
+ int argc,
+ char **argv
+ );
-The configuration structure for the ``ping`` has the following prototype:
+ The configuration structure for the ``ping`` has the following prototype:
-.. code-block:: c
+ .. code-block:: c
- extern rtems_shell_cmd_t rtems_shell_PING_Command;
+ extern rtems_shell_cmd_t rtems_shell_PING_Command;