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if in a LAN , a ping from a computer called A to a router connected between computer B and computer C fails, does it tell us something about that router: that is, can we assume that the router has something wrong with it..............

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As the previous post said, most routers now-a-days silently ignore the ping and don't respond, makig it look like the router isn't there. If you get an ICMP error back, you might be able to assume there is an issue with the router, but again, some other routers will send an ICMP response to indicate an error and this is very normal.

If there are any TCP services enabled on the router, in which it listens, like a web interface or telnet/ssh, you can probably use a TCP ping (which is actually just a TCP SYN request) and get a much more reliable response. If it is working, it ACKs, if something happens you either get no response or an ICMP error, but this too is not 100% reliable.

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This topic is 3487 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

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