Questions tagged [ping]
Ping is a mechanism to see if a remote host is reachable via an IP network
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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....
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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 (...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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193
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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=...
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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 ...
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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 ...
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465
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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 ...
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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 ...
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"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 ...
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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 ...
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ping reports not receiving any package while tcpdump logs echo replies
INTRO:
There's an IPIP tunnel (call it megatun0) to a machine connected to a private network. The megatun0 tunnel is bound with the address 192.168.15.1. One of the network interface on the machine ...
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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 ...
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Why is it not possible to establish a connection between these servers?
I have the problem that my two servers (master, worker) can not connect to each other. However, connections outside e.g. "google.com" are possible. I have already tried to allow all ICMP ...
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Ping request generates response but sender doesn't see response
I have an embedded linux system with an ethernet PHY that is connected to a switch and then directly to my PC. After setting static IP addresses I found I could not get a working ping in either ...
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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 ...
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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 ...
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ping fails when bond0 switches slaves, ip stays the same
setup is fresh debian 11
Bonded connection (bond0) is created using all nmcli commands
sudo nmcli con add type bond con-name bondcon ifname bond0 mode active-backup +bond.options "primary=eth0,...
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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 ...
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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 ...
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1
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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, ...
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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 ...
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1
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2k
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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1
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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 ...
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251
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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 ...
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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 ...
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1
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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 ...
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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 .....
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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 ...
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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 ...
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1
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152
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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....
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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 ...
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4
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2k
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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 ...
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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/...
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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 ...
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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 ...
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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 ...
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Can not connect to Linux instance using SSH through Putty
Just signed up for GCP account and created a Linux VM on GCP (SUSE) and having issues to connect via SSH through Putty.
Also tried through CMD prompt on Windows 10 and get the same issue. Followed up ...