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Ping Error Codes

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U.S. ICMP_ECHO_REPLY32 structure The ICMP_ECHO_REPLY32 structure describes the data returned in response to an IPv4 echo request on a 64-bit platform. Generated Mon, 24 Oct 2016 07:18:53 GMT by s_wx1011 (squid/3.5.20) Ping (networking utility) From Wikipedia, the free encyclopedia Jump to: navigation, search An example run of the command-line ping utility on Success rate is 0 percent (0/5) This time, the source address is 20.0.0.1, and it is not working! http://iipseconline.com/ping-error/ping-command-error-codes.html

Success rate is 100 percent (5/5), round-trip min/avg/max = 32/32/32 ms The traffic is going through Router2, and is now fast-switched. Jan 20 16:00:31.599: IP: s=12.0.0.1 (local), d=34.0.0.4, len 100, unroutable. Privacy policy About Wikipedia Disclaimers Contact Wikipedia Developers Cookie statement Mobile view The request cannot be fulfilled by the server Flex System information > Management devices and solutions > CMM > This documentation is archived and is not being maintained.

Ping Messages Explained

If the host is already active and configured to allow replies to incoming ICMP Echo Request packets, the returned reply should include the same payload. Recommended Books & Training Resources Privacy Contact Us Support Archive current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. We get a better idea of the problem using this debug command: Router4#debug arp ARP packet debugging is on Router4#ping 100.0.0.5 Type escape sequence to abort.

IP Traceroute Text Characters Character Description nn msec For each node, the round-trip time in milliseconds for the specified number of probes * The probe timed out A Administratively prohibited (example, Jan 20 16:16:17.363: IP: s=12.0.0.1 (local), d=34.0.0.4 (Serial0), len 100, sending. Jan 20 16:40:20.303: IP: s=20.0.0.1 (local), d=12.0.0.2 (Serial0), len 100, sending. Ping Output Correct Source Address Here is an example of a typical situation: We add a LAN interface on Router1: Router1(config)#interface e0 Router1(config-if)#ip address Router1(config-if)#ip address 20.0.0.1 255.255.255.0 From a station on the

Fourth link down is this which states: If ping does not receive any reply packets at all it will exit with code 1. Ping Error Message General Failure If your CPU is not powerful, or if you have a lot of process-switched packets, they can easily stall your device. We are sending our packets, but we are not receiving anything. Downloads and tools Windows 10 dev tools Visual Studio Windows SDK Windows Store badges Essentials API reference (Windows apps) API reference (desktop apps) Code samples How-to guides (Windows apps) Learning resources

Retrieved 20 December 2010. ^ "Shields Up, Firewall Test". Unix+ping+command+exit+status+codes ping command errors. Jan 20 16:00:27.599: IP: s=12.0.0.1 (local), d=34.0.0.4, len 100, unroutable. Router2# ! !

Ping Error Message General Failure

Status Type: ULONG The status of the echo request, in the form of an IP_STATUS code. http://www.nthelp.com/icmp.html This corresponds to the Time Exceeded Message. Ping Messages Explained interface Serial0 ip address 34.0.0.3 255.255.255.0 no fair-queue ! Ping Failure Reasons Please try again.

Sending 5, 100-byte ICMP Echos to 12.0.0.2, timeout is 2 seconds: !!!!! have a peek at these guys If the host was just sleeping in low power active state, a single request wakes up that host just enough to allow its Echo Reply service to reply instantly if that Jon Postel's original paper on ICMP, RFC 792. Some packets are always processed, but with the appropriate configuration and in stable networks, the rate of processed packets must never congest the input queue. Ping Return Codes Windows

The table below lists possible ICMP-type values. Jan 20 16:00:33.599: IP: s=12.0.0.1 (local), d=34.0.0.4, len 100, unroutable. It is the 16-bit one's complement of the one's complement sum of the ICMP message starting with the Type field[8] Header Data (32 bits) field, which in this case (ICMP echo check over here The user tries to issue a command that is not valid for the command target.

IP_REQ_TIMED_OUT 11010 The request timed out. Different Ping Errors If we want to simulate a packet coming from the LAN, we have to use an extended ping: Router1#ping Protocol [ip]: Target IP address: 12.0.0.2 Repeat count [5]: Datagram size [100]: Why would breathing pure oxygen be a bad idea?

To use the PING utility simply open a command prompt from your Start menu or type in cmd from your run command box or your search box.

The first router, in this case Router2 (12.0.0.2), drops the packet, and sends back to the source (12.0.0.1) a type=11 ICMP message. Jan 20 15:54:47.523: IP: s=12.0.0.2 (Serial0), d=12.0.0.1 (Serial0), len 100, rcvd 3 Jan 20 15:54:47.527: ICMP type=0, code=0 !--- This is the answer we get from 12.0.0.2. !--- ICMP type=0 corresponds more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Icmp Error Messages p.42.

The command-line options of the ping utility and its output vary between the numerous implementations. The default value of this timeout is two seconds on Cisco routers. From Router1, you can ping Router2 because, by default, you use the IP address of the outgoing interface as the source address in your ICMP packet. this content IP_DEST_NET_UNREACHABLE 11002 The destination network was unreachable.

Success rate is 0 percent (0/5) Router4# In this example, the ping is not working due to "encapsulation failed". Basically, ARP is a protocol used to map the Layer 2 address (MAC address) to a Layer 3 address (IP address). If your network is live, make sure that you understand the potential impact of any command. Data Type: VOID * POINTER_32 A pointer to the reply data.

In practice, most Linux systems use a unique identifier for every ping process, and sequence number is an increasing number within that process. Q Source quench (destination too busy). In this example, the shortest round trip time was 9.674 ms, the average was 10.968 ms, and the maximum value was 11.726 ms. Success rate is 100 percent (5/5), round-trip min/avg/max = 24/25/28 ms The RTT has dramatically increased here.

Router4# ! ! Let us add a static route to Router4: Router4(config)#ip route 0.0.0.0 0.0.0.0 Serial0 Now it works perfectly, and both sides can access each other: Router1#ping 34.0.0.4 Type escape sequence to abort. It is one of the most commonly used tools used to troubleshoot network connectivity between devices. Echo request[edit] The echo request ("ping") is an ICMP message. 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20

Type Name Reference ---- ------------------------- --------- 0 Echo Reply [RFC792] 1 Unassigned [JBP] 2 Unassigned [JBP] 3 Destination Unreachable [RFC792] 4 Source Quench [RFC792] 5 Redirect [RFC792] 6 Alternate Host Address Jan 20 17:19:49.843: IP ARP: sent req src 100.0.0.4 0000.0c5d.7a0d, dst 100.0.0.5 0000.0000.0000 Ethernet0. If it has to reply to a packet coming from this network, it does not know how to handle it. Your cache administrator is webmaster.

Router3# ! ! In addition, these messages include the first eight bytes of the original message (in this case header of the ICMP echo request, including the quench value), so the ping utility can Jan 20 17:04:13.175: IP: s=100.0.0.4 (local), d=100.0.0.5 (Ethernet0), len 100, sending Jan 20 17:04:13.179: IP: s=100.0.0.4 (local), d=100.0.0.5 (Ethernet0), len 100, encapsulation failed. ValueMeaning IP_SUCCESS 0 The status was success.

See also[edit] Computer networking portal Keepalive List of DOS commands List of Unix utilities Traceroute Ping of death Ping-pong scheme Security through obscurity Smurf attack References[edit] ^ a b Mike Muuss.