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Questions tagged [ping]

Ping is a mechanism to see if a remote host is reachable via an IP network

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How do I get packets to egress to the tap0 interface rather than the lo interface?

I ran ping 10.0.0.1 and ping -I tap0 10.0.0.1 to see if my custom tcp/ip stack would receive them. Instead of sending the packets through the tap0 interface, they are sent through the loopback. I ...
Leastrio's user avatar
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1 answer
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Ping from dummy interface

I want to test NAT table using dummy interface. I have enp1s0 interface connected to internet and have configured NAT table to MASQUERADE packets as shown below. random@debian:~$ ip addr 1: lo: &...
Saurav Niraula's user avatar
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2 answers
82 views

Ping shown 0 received, 100% packet loss. But the captured packets shown the reply packets is ok

I pinged a host, shown 0 received, 100% packet loss. The captured packets show a reply, however the message "admin prohibited filter" is displayed.
Donghua Liu's user avatar
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35 views

linux ip route (interface) selection based on ping to destination?

Intro I live in Thailand. Our connectivity to Europe here is somewhat strange. Sometimes connections go directly to Europe (ping of 180-250ms), because my ISP has a direct 100G link to a peering ...
Arkadiy Bolotov's user avatar
1 vote
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check_ping in nagios resolves to ipv6 instead of ipv4

mn1.testchn1s1.ind ~# /usr/lib64/nagios/plugins/check_ping -H mn1.testchn1s1.pub -w "700,60%" -c "1400,100%" -p 5 -4 -s PING OK - Packet loss = 0%, RTA = 0.10 ms - mn1.testchn1s1....
sree's user avatar
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ICMP request | By Virtual NIC | no response

The Issue: I want to Understand what's going on when I'm sniffing from the host machine with Wireshark for instance packets that are coming from the VM that is bridged directly to the physical network....
Eden Refaelov's user avatar
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1 answer
30 views

Server is slow to reply to ping via WiFi interface, but not when sending traffic

The server is Fedora on amd64. It has an eth interface and an wifi one, 5GHz. From a machine in the same LAN, when I ping the server I see: Ping 192.168.2.20 (eth) gives <1 ms Ping 192.168.2.21 (...
Sebastian's user avatar
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1 answer
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Ping arclk.net returns ping response from ip 127.0.0.3 [closed]

Ping arclk.net returns ping response from ip 127.0.0.3 in each of my 4 PCs and my android mobile as well. Is it normal? Or it's infected by a virus? If so, how can I disinfect all of my devices? CMD ...
Md. Jahurul Islam's user avatar
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1 answer
116 views

Ping resolves hostname but takes 10 seconds before it starts sending packets

I have two Linux machines connected to a router, so they are on the same subnet. Machine A tries to ping machine B by its local IP, everything works fine. But when A tries to ping B via a DDNS enabled ...
hkoosha's user avatar
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Embedded Board Replies to Pings in Wireshark but not in Windows

I have an embedded board (running a Cortex-M7), and LWIP for the networking library. MAC is integrated to the CPU, but has an external PHY. I go ahead and initialize LWIP, and when I ping the board ...
Shaken_U's user avatar
-1 votes
1 answer
145 views

Hostname and DNS for embedded devices in LAN

I'm not able to find an explanation or even related questions since I don't know exactly what is the problem and the correct keywords to use. I'm a firmware guy and often I develop code that enables a ...
Mark's user avatar
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Unable to ping the vm running with ebpf program

I am using an eBPF program which counts the number of packets received on its interface on my destination vm. At first I can able to ping the vm running with eBPF program that is destination from the ...
Manideep G's user avatar
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223 views

In Windows firewall, what is the different between the two same default ICMP-ping rules?

In the Windows firewall, 2 default rules are identical: File and Printer Sharing (Echo Request - ICMPv4-In) (technical name is FPS-ICMP4-ERQ-In) Networking - Echo Request (ICMPv4-In) (technical name ...
Gregory MOUSSAT's user avatar
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1 answer
251 views

Ping: "Destination Host Unreachable" even though ARP request succeeds

I have a wired interface with a static IP configured. Pinging the gateway results in "Destination Host Unreachable". PING 10.3.3.246 (10.3.3.246) 56(84) bytes of data. From 10.3.3.8 icmp_seq=...
StackedCrooked's user avatar
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1 answer
155 views

Linux Server offline briefly every 30 minutes and 10 seconds

I have a very odd situation with a Linux Server (Fedora 38) that goes offline exactly every 30 minutes and 10 seconds. Nothing can ping it and it can't ping anything for a second or two, then it's ...
Milonic's user avatar
2 votes
1 answer
2k views

Unable to connect to remote using ipv6: ping6: UDP connect: No route to host

thought I'd try asking here since I don't know where else to turn to. Simply, I am trying to ping/SSH my remote server from my local machine using ipv6 but it keeps failing. Executing ping6 for my ...
TeemuK's user avatar
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1 vote
1 answer
677 views

Why can't I ping local IPv6 address?

OS: almalinux9 2610:150:c002::1:a563 is the IPv6 address of my local network card eno2. [root@alpha ~]# ip addr show eno2 3: eno2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state ...
Joshua Shaw's user avatar
0 votes
1 answer
1k views

Ping and mDNS over WireGuard not working

When running through WireGuard VPN tunnel from outside the network, I can access machines inside directly via IP. For example, hitting IP of PiHole box in a browser returns the PiHole UI. I can also ...
Overflowed's user avatar
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1 answer
88 views

"Destination Port Unreachable" only on secondary IP of VM

An vmware VM is assigned two IPs. We can only ping one of the two IPs from VMs on the same network. 2: ens160: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen ...
Vladimir's user avatar
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1 answer
345 views

Find LAN's IPv6 multicast address (or else all currently responsive LAN members)

Is there a way to see which devices (IP numbers) are active on the LAN over IPv6? With IPv4 I'd ping the broadcast address, which is usually not hard to determine. With IPv6 I understand there are no ...
RJVB's user avatar
  • 111
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1 answer
628 views

How can I determine which network adapter a device is using for packet emission when attempting to reach a specific IP address using ping?

I have been trying to reach a particular IP and I have not been able to check on which Network Adapter it is using for publishing. Is there any way to check on a particular device to verify whether it ...
Asier_Rodriguez's user avatar
-2 votes
2 answers
37 views

Lowering latency to distant endpoint

I need the lowest possible latency from Bulgaria to Korea. From what I understand, as an individual there is not much I can do to choose which physical cable my internet traffic travels on across ...
angularchobo's user avatar
-3 votes
1 answer
570 views

Why is ping from New Jersey faster than from Tokyo to binance (in Tokyo)?

I am thinking of using vultr as VPS. When I do a ping to binance api.binance.com which have their servers in Japan on the site https://hnd-jp-ping.vultr.com I get much worse ping from Japan than if I ...
Xtreme's user avatar
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3 votes
1 answer
2k views

Why is Linux policy-based routing (PBR) not working for ping?

First of all, it seems as if this question is about Linux, but it seems to me that it is about basic routing concepts. I happen to have the following configuration: What I am trying to do is to ...
Tedpac's user avatar
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124 views

Network Skip Pinging Every 3 minutes periodically for 2 sec

I have an application runs in UP Board | UP-CHT01, which will do an operation and send the data to NATS Messaging Server. ( Which is running on another PC i.e, not in the same board) While testing the ...
ekafe's user avatar
  • 1
0 votes
1 answer
159 views

Low cost TCP listener for Azure

We've been going through the process of migrating VMs from our data centres into Azure. When migrating, one of the gotchas is networking rules; i.e. there are NSGs, hardware firewalls, OS firewalls, ...
JohnLBevan's user avatar
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285 views

Ping performance improves during iPerf3 network congestion test

I am beginning to learn about networking and testing network performance (specifically on containers). I am trying to learn how to perform good network tests to see networking capabilities of docker ...
akastack's user avatar
-1 votes
1 answer
3k views

ping 100% packet loss - can't ping to server

when I try to ping my newly created server it shows: vasanth@vasanth-client:~$ ping -c 4 server.ip.name PING server.ip.name (server.ip.address ) 56(84) bytes of data. --- server.ip.name ping ...
Vasanth Vel's user avatar
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1 answer
313 views

Does frequent ping affect local network speed?

(Sorry for my english) Hi, I am about to set up a monitoring server and wanted to know if pinging the network devices could significantly affect the speed of the local network. I want to ping every ...
Kuroro's user avatar
  • 3
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2 answers
357 views

debian wheezy has packet loss on ping

There is an old debian wheezy server in my office. Any network operations involving this server are very slow, whether ssh, scp, or using its Apache web server. Pinging from inside this wheezy server ...
Cheetaiean's user avatar
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107 views

Setup new router with SQM - Buffer Bloating solution

Scenario. I'm in Tbilisi, Georgia. I have very high ping to EU servers(100ms+) plus a huge buffer bloating problem, this test gave me the F rank: https://www.waveform.com/tools/bufferbloat I use an ...
MrVerde's user avatar
1 vote
0 answers
17 views

Host ID's on Network not in succession of 'active' or established devices?

Disclaimer: I am new to networking. I ran a arp -a command on Terminal to establish what devices are currently active on the network. I was returned a number of devices with Host ID's that were not in ...
BuiltByDan's user avatar
0 votes
2 answers
1k views

Why do I see more than one IP address for my site when I PING it from CMD? [closed]

I have a website (cimahouse.co). Every time I wanted to reach my site, I got a different IP address. Sometimes domain cimahouse.co opens normally, and sometimes it should write it with www. I tried to ...
Ahmed Atef's user avatar
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1 answer
424 views

PC/Switch (in one subnet) connect to Switch (in another subnet), but not to PC connected to the switch

[UPDATE] The problem/behavior described below was caused by the public network connection on the system -which had a default gateway. The unusual behavior was a result of the private network sending ...
vasikan's user avatar
  • 15
-1 votes
1 answer
298 views

List all active devices in different subnets?

My company has a class A network that contains various subnets. I need to automate a way to produce a list of all online devices (in all the subnets). To start, just a list of responsive private IPs ...
Andrew Campi's user avatar
0 votes
1 answer
806 views

How can I make my nginx web server reachable from outside its local network?

I am trying to reach a subdomain of my website from outside its local network. I can successfully ping it (ping my.subdomain.com): PING my.subdomain.com (ser.ver.ip.add) 56(84) bytes of data. 64 bytes ...
naraghi's user avatar
  • 111
2 votes
1 answer
129 views

Ping device connected to host having LAN access

I've been playing back and forth routing games for a couple of days. As it is quite hard to describe with words I made a diagram below: What I want to achieve is being able to ping Rpi 4B from Rpi 3B ...
Ogy89's user avatar
  • 21
0 votes
0 answers
371 views

pinging over interface fails, pinging over ip address of interface succeeds

I often use the ping -I option to test if an interface forwards packets correctly. A Raspberry Pi 3 has an interface named eth1. It is a USB to female ethernet connector. I manually configured this ...
kzpm's user avatar
  • 99
0 votes
0 answers
56 views

I can't PING to my Cisco router when I try to access the domain server

I have this network image I tried to connect the pc1 to the domain (in Windows Server 2012). To do that I tried to PING from pc1 to the server and that works. After that I go the pc1(Windows 7) and I ...
user84999's user avatar
  • 109
0 votes
1 answer
329 views

How is it possible that I'm getting a 13ms ping RTT from London to a New York IP?

I have created a Digital Ocean - App Platform app in the New York region. When I ping my domain, I get this IP address: 172.67.143.96 and this RTT 13.501ms If this IP address is actually in New York ...
andrerpena's user avatar
0 votes
3 answers
2k views

Cant ping between 2 machines in same subnet

I have machine A ubuntu with IP address 192.168.1.70 and machine B windows 10 with ip address 192.168.1.45. When i try to connect them using a lan cable i can ping between 2 machines successfully .....
Midhun Raj's user avatar
0 votes
1 answer
852 views

Unable to ping between two devices in two subnets connected via router

I have two systems running on Windows, the first one S1 in subnet 192.168.3.0 and the second one S2 in subnet 192.168.2.0. Both are connected to my Linux box, say R1, which I want to act as router for ...
Parvathy J.R's user avatar
1 vote
1 answer
3k views

Cannot ping EC2 instance from AWS CloudShell

I cannot ping the private IP either from the AWS CloudShell or another EC2 instance: [cloudshell-user@ip-10-0-161-171 ~]$ ping 10.1.0.10 ping: socket: Operation not permitted Ping is enabled on the ...
CPI's user avatar
  • 11
0 votes
1 answer
164 views

How to ping backup interface?

this is my network configuration: bond interface 192.168.101.50/24 has two salaves: eth1 (192.168.101.1) that is connected to 192.168.101.2 and eth2 (192.168.101.10) that is connected to 192.168.101....
raffaeledp's user avatar
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0 answers
3k views

Oracle Linux 8 can't resolve host names using DNS

EDIT: FIXED -- My Egress Rules were blocking TCP/UDP 53. I have a stock Oracle Linux 8 server running on Oracle cloud (OCI) with Postfix installed that stopped resolving names through DNS after a ...
andreluis77's user avatar
0 votes
4 answers
2k views

Why is ping time much higher using wifi than Ethernet connection?

I have struggled with API of https://api.materialsproject.org recently. Because it is so slow and unstable when fetching data. I thought it was just the problem of this site. However, I found it is ...
user15964's user avatar
  • 121
0 votes
0 answers
1k views

BGP: I cannot ping an address even though it exists in the routing table

I have the topology from the attached image with I-BGP neighborship between 192.168.21.1 and 192.168.21.2 and E-BGP neighborship between 192.168.6.1 and 192.168.6.2. I have advertised network 2.2.2.2/...
Alex Dobre's user avatar
0 votes
1 answer
147 views

Access mysql from another computer connected with crossover cable

I have two computers, and i am trying to access mysql via network on port 3322 (mysql listens on this port) Computer A Server: Windows 10 home Added firewall exception to port 3322 (mysql installed ...
Smith's user avatar
  • 133
0 votes
0 answers
194 views

The packet goes through the other router

I want to connect two hosts in parallel with two different models of virtual routers. These are made redundant by VRRP. Originally, packets are sent through only one of the routers. However, when the ...
rei's user avatar
  • 1
0 votes
1 answer
178 views

How can I get an alert me if ping is not sent from windows service I created?

Let me explain the problem. I created a windows service that should run a method every minute, but it seems to fail at random times for an unknown reason. The application doesn't crash but some how a ...
user1605822's user avatar

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