/https-www.lifewire.comhow-to-solve-a-destination-host-unreachable-error-4686734-01-fa84222b6fc84b0ba8feffc65aeca960.jpg "destination host unreachable")
What is your topology? why do you have such high ping times on a machine on the sameĪfter the first packet got sent, the IP address was correctly resolved to the MAC address and the ping went through. Try running a netstat -s and see if your got lots of re-transmits.Īlso ifconfig and see if your interfaces are error free! (that's a both ends)Ĭheck the network device your plugged into, does it have interface errors? They appear to be generated by the outgoing interface and I only receive the message for certain hosts. I have what I think are proper routes in the routing table, so I'm completely stumped as to why I'm getting Destination unreachable messages. Check your network health and see whats going on. I'm having this problem where I'm unable to access certain IP addresses that are local to my LAN. Since the host does not exist, the sending station is reporting to you that the destination host is unreachable because the ARP request was not completed. LAN ping times should always be <1ms :-).Ĭongestion leads to packet loss, packet loss leads degraded performance, degraded performance leads to the dark side. Off hand, it looks like it could be a flapping route. When pinging a host on your own subnet the sender will first send an ARP request for the MAC address of the associated IP address. Looks like you network is quite busy as 96ms (is that your lan) means you lan is congested, or you or you remote host (or both) is under a great deal of load. Disabled firewalls and restarted network interface settings on both. Maybe an Arp timeout, if you don't have the machine mac address in your arp table, then your machine will send out a arp request. 133 could be the address of the gateway, where it says the same thing.
The funny thing is when I authorize on this machine with the domain accounts. The rest of the machines configured on the same scheme indicated above work correctly and able to get access to any external web-resources unlike WC1.
But in this situation your computer didnt. When I ping any of the external-web sites from WC1 machine I get an error: Destination host unreachable. If it is your machine it means that the sender and receiver of the packet are on the same physical network, and since your machine could not resolve the sender's IP address to its MAC, your machine(.133) says "Destination host unreachable") If the sender and the receiver are on two different networks, then. If there is routing to the destination then you will have response from web address about ping TTL and packet size. THe first IP address you see, actually is your machine or it could be your gateway. ARP is used to resolve an IP address to Mac address.
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