Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [ping]

For questions about Packet INternet Groper [PING].

3
votes
2answers
44k views

dont fragment bit PING TOOL

Actually my machine wwan0 MTU is 1500 ashokkrishna@ashokkrishna-Lenovo-B560:~$ ping -s 1490 example.com PING example.com (93.184.216.119) 1490(1518) bytes of data. 1498 bytes from 93.184.216.119: ...
1
vote
1answer
90 views

Switch cannot ping server

My switch won't ping my server. Both are directly connected with each other, and are in vlan 666. When I initiate a ping from my switch to my server, the switch sends ARP requests. Then the server ...
1
vote
1answer
862 views

Sonicwall TZ105 Site to Site VPN Created can ping gateways but can't ping network from other site

Need help here Site B TZ105 x0 Lan 192.168.162.1 X1 WAN 64.x.x.x X2 LAN 10.0.3.1 Site A TZ300 X0 LAN 10.0.1.1 X1 WAN 69.x.x.x VPN tunnel set up as VPN SITE TO SITE and is Green From Site A I can ...
0
votes
1answer
29 views

Why does Nmap not detect a host which is active and responds to Ping?

I have connected to another laptop via the LAN cable, i am able to access the services running on the other laptop via Ip & Port. When i Ping that Ip, the machine is successfully responding. But ...
2
votes
1answer
416 views

GNS3: No Response When Pinging Router Connected on Second Serial Interface

I'm attempting to set up a network with 3 Routers. A "West" and "East" router are each connected to a "Central" router via a PA-4T+ serial interface. The first interface (s1/0) on the Central is ...
1
vote
3answers
21k views

If you can't ping an ip address this means nothing in regards to dns right?

If you can't ping an ip address since you are not resolving a canonical name this has nothing to do with dns and only has to do with the inability to reach that machine (routing) right?
2
votes
2answers
703 views

ARP table is not updated with NMAP

Here is what I do and what happens : Let assume I have a device A with IP X.X.X.200 connected to the network I use Nmap to ping my local network, with the command "nmap --send-ip -sP 192.168.1.1/24" ...
1
vote
0answers
13 views

Why can't I reach mail.google.com, translate.google.com and chrome.google.com? [closed]

I'm experiencing trouble trying to connect to Google. This is the case both through any web browser, and ping from Command Prompt. The trouble is limited to: Laptop devices but not Mobiles my home ...
0
votes
1answer
76 views

How to use ICMP to send message

I was trying to send ICMP package with Payload/Message on server_A to server_B(10.1.1.5) as following: ping -p 12345 10.1.1.5. but when I use Tcpdump to capture the ICMP package from server_A, I ...
10
votes
4answers
31k views

Interpreting TTL in ping results

I work for a VoIP service provider and I am working an issue with a customer who has a cable internet connection that's throwing me for a loop. He has a single block, which we'll pretend is 70.141.15....
3
votes
4answers
17k views

Cant ping across router?

I am trying to set up communication across a network, and I have run into a bit of a problem. In the diagram below, why is it that I cannot ping host 2 from host 1? Router 1 has interfaces on both ...
0
votes
0answers
43 views

Wireshark switch ping

I understand that a switch will broadcast to all ports if it doesn't have the destined destination in its mac address table but when I analysed a scenario in wireshark I got confused at what happened. ...
2
votes
1answer
332 views

If traceroute fails why does ping still work?

If I can ping a router successfully, why is it that when I do traceroute, it stops at a particular interface and says "ICMP type:3, code:3, Destination port unreachable". Doesn't that mean that it can'...
0
votes
0answers
37 views

Why can't I ping to the outside interface of my ASA

Below is the output of packet tracer. I have simulated a ping packet from 10.106.51.203 to 10.106.51.200. 'mgmt' is supposed to be the outside interface. Also, why is output-interface in the result ...
1
vote
3answers
2k views

My first IPv6 ping fails

I have some dual stack websites. When I open my websites they connect using IPv4 the first time, and then IPv6. If I ping the IP address directly, the first ping fails for IPv6 and then works fine. ...
4
votes
3answers
651 views

Understanding hubs and switches

Newbie here. I'm trying to understand how hubs and switches work. I read that hubs only forwards to all ports but a switch only forwards to the port it needs to. So, If I connect 3 computers to the ...
1
vote
1answer
72 views

Broadcast domains switches

If I connect 3 computers to the same switch and used one of the PC's to ping another PC on the switch will this cause a broadcast domain as they are connected to the same switch?
0
votes
1answer
64 views

Can i capture 127.0.0.0 and 0.0.0.0 network using wireshark?

Yeah, I've done capturing 127.0.0.1 ( loopback address ) using GNS . But it is possible to capture 127.0.0.0/8 and 0.0.0.0 direclty from any adapter on our device? Here is a network route of my ...
3
votes
4answers
4k views

Are ping-times directly related to location/distance?

Suppose I want to determine if an IP is located in my country, without a third-party servvice. Could I estimate that to a certain degree by measuring ping times? Or is it better to look at the number ...
5
votes
2answers
4k views

What would happen to Ping if two PCs have same IP address with same Subnet Mask on same network?

If there are two PCs with same IP address on a LAN, what would happen if I ping that IP address from another PC on the same network and why?
1
vote
1answer
2k views

arping with mac address fails

I cannot get arping to run if I give a MAC address. If I use IP address, it works fine. Does anybody know what the problem is? 1. arping -i <ifname> xx:xx:xx:xx:xx:xx arping: Unable to get ...
2
votes
2answers
338 views

Is “Host unreachable” the same as “Communication administratively prohibited” in Access List ping response?

Below is a portion of my topology. Faculty of Arts student subnet should not be able to ping Faculty of Arts staff subnet but the staff should be able to ping the student subnet. I know that this ...
2
votes
1answer
85 views

How to make PCs in the same LAN but on different networks communicate

Is it possible to ping PCs in the same LAN but on different networks? I've done RIP version 2 on all the routers. They all can ping each other. However, the PCs cannot. For example, when I try to ping ...
4
votes
2answers
336 views

Why R1 is not reachable to R3?

I didn't configure any routing protocol to any of the router and tried to apply static routes in order to get out of the network and I've configured static routing in a manner that if R1 sends a ping ...
1
vote
1answer
236 views

Trying to figure out why Serial0/0/0 can't be pinged

Here's the setup: R1 -> R2 | |--> R3 R1 has 2 serial interfaces - Serial0/0/0 (10.0.0.1) is connected to R3 (Serial0/0/0 - 10.0.0.3), and Serial0/1/0 (10.0.0.4) is connected to R2 (Serial0/...
1
vote
2answers
944 views

PC can't ping router 2 hops away (home lab)

To give some context, here is my setup: ----(10.0.0.1 - S0/0/0) R1 (S0/1/0 - 10.0.1.1)---- | | | | ...
5
votes
1answer
601 views

Cisco Router Setup 1841

I need some help. I am new to using Cisco routers (as far as setting them up my self), so forgive me if this is something simple that I am over looking or not understanding. I have a cable internet ...
41
votes
4answers
216k views

PING port number?

Yesterday interviewer ask me what is port number for ping and which protocol ping use TCP/UDP. After interview I search on internet and found different different results someone says ICMP uses Port 7,...
5
votes
5answers
1k views

Why can't two hosts (in two different logical networks) connected to each other through cross-over cable communicate?

Let us say, i have two computers (hosts) A and B. Where A has been assigned an IP address of 192.168.1.10/24 and host B has been assigned an IP address of 192.168.2.11/24. And both of them has been ...
2
votes
2answers
212 views

Data-packets, sent to a router, are treated differently based on their origin: clarification needed

On a Cisco Packet Tracer sample e2-232, there is something I don't understand, even after following the step-by-step instructions on the sample project.The logical topology is shown in the following ...
3
votes
2answers
3k views

Computer unable to ping another over two routers

I am using Cisco Packet Tracer to simulate a network of two routers each connected to a switch and two hosts per switch. The network is setup as so: I'm using a default subnet mask of 255.255.255.0. ...
1
vote
1answer
670 views

Initial ping failure in Packet Tracer

In Packet Tracer 7.0: After directly connecting two switches or a router and switch, pinging the neighboring device always fails on the first one or 2 attempts (i.e. only 4/5 or 3/5 ping attempts are ...
1
vote
1answer
1k views

Can't ping through L3 switch

I've built a scenario in Packet Tracer that I am looking at implementing but having issues with pinging from a PC through a L3 switch. From the switch, I can ping every IP address in the environment ...
2
votes
2answers
425 views

SVI Inter-vlan routing

I have 2 3560G switches and im trying to ping the other vlan on it but wont get the packets. here is my config switch #1 Switch#sh run Building configuration... Current configuration : 1946 bytes ...
3
votes
2answers
1k views

Strange router's MAC address from ICMP Echo Reply?

Using Wireshark to capture ICMP packets (Windows) using ping to google.com, I can see the source-MACAddr of the ICMP Echo replies is not the same as the MAC address of my direct router (which is the ...
11
votes
2answers
13k views

traceroute many hops with the same ip

I'm a software developer that sometimes has to do some easy network tasks but knows almost nothing about it. I'm having some problems with a vps I rent ( ENJOY VPS: Unmanaged VPS - Medium VPS) and ...
1
vote
1answer
318 views
2
votes
1answer
49 views

IPV6 ping, the pinged address is different from the once caught by wireshark

I'm trying to ping an ECU, both PC and ECU have static IPV6 address the problem is that the target address (ECU) pinged is different from the one caught by Wireshark subnet : 64 ping command $ ...
4
votes
1answer
191 views

Strange ping over frame-relay network

Buffing up on Frame-Relay for testing EIGRP nuances over FR for CCNP - topology and relevant show command output here: http://imgur.com/a/Ch6Sh#0 Relevant PVC is between DLCI 103/301 (R1/R4) Why ...
1
vote
5answers
55k views

How Can I use “ping command” with source?

I can not use ping 'target' source 'interface' ping 192.168.0.2 source lo0 % Invalid input detected at '^' marker. It's possible if I use "ping" R2#ping Protocol [ip]: ip Target IP address: 192....
0
votes
2answers
4k views

Block ICMP ping from a PC to a PC

I have a topology like this PC1 ------Switch PC2 ------Layer --------- Router PC3-------two PC1 192.168.1.34 VLAN 10. PC2 192.168.1.50 VLAN 20. PC3 192.168.1.51 VLAN 20. I configured a router on ...
1
vote
1answer
823 views

watch guard not allowing ping or traffic through wireless client

I have setup a little wireless network for some plcs we installed. When we connect directly to the switch or moxa awk 1131, we can ping all ip's 61.1 to 61.6 and also the gateway and get internet ...
0
votes
1answer
388 views

Cannot Ping from Cisco 3650 to Workstation

I have a Cisco 3650 that doesn't seem to be able to communicate with one particular workstation for some reason and I am at a loss to figure out why and hope someone can give me a suggestion. I have ...
0
votes
1answer
338 views

can ping hosts but not gateways (no NAT)

I have 4 networks: A: 10.10.1.0/24 --\ B: 10.10.2.0/24 ---\ Juniper SSG-350M C: 10.10.3.0/24 ---/ D: 10.10.4.0/24 --/ I have a FreeBSD host in network D with an OpenVPN server working in ...
1
vote
1answer
258 views

Cannot ping internet from host on second subnet

Everything works other than the fact that HOST cannot ping the DNS server or anything beyond Router1. I can ping all hosts and Google from both Router1 and Router 2. Host can ping FE0/1 on Router1 and ...
2
votes
1answer
2k views

continues to execute the command ping

tell me please why continues to execute the command ping... Router#ping vrf vrf-trust 50.50.50.50 sou 2.2.2.2 Type escape sequence to abort. ending 5, 100-byte ICMP Echos to 50.50.50.50, timeout is ...
1
vote
2answers
479 views

Unable to ping internet from switch

Router internet interface Fastethernet0/0 192.168.0.17 (ip nat outside) internal interface 192.168.1.1 (ip nat inside) able to ping 8.8.8.8 from router Interface IP-Address OK?...
0
votes
1answer
2k views

Inter vlan can not ping each other

I have this network, but actually pinging between vlans never works. Vlan 10 can ping between its pcs; the same is true for vlan 20, but I can't ping between pcs in different vlans. I don't know if ...
0
votes
3answers
377 views

Unable to ping 192.168.x.x series

My camera IP is in range of 192.168.x.x and I'm using IP in the range of 10.x.x.x series DHCP. When I assign my PC a static IP 10.x.x.x and additional ip 192.168.x.x I am able to ping my camera ip. ...
0
votes
2answers
14k views

How do you ping between VLANs?

I have created VLANs on the layer 3 switch and I would like to ping between them, how do i do so? I would like to allow VLAN 2 to ping VLAN 3, how? What command should I use? new#sh ip interf ...