[smokeping-users] Re: fping issue?

Dez Cadena dez at otenet.gr
Thu Jan 26 13:22:29 MET 2006

Dez Cadena wrote:

>I had some non-responsive fping targets in my config so I tried both 
>ping and fping from the command line.
>Same target, same options (5 packets, 64bytes size, 1sec between packets):
>fping produced 100% packet loss (as expected)
>ping produced 0% packet loss (!)
>AFAIK, both fping and ping send ICMP echo requests so how come the same 
>target is responsive through
>ping and non-responsive through fping? Any ideas? The target is a cisco 
>26xx router.
Updating myself here...

I've realised that fping only succeeds if I set the packet size to 
something really small (e.g. 20bytes)
whereas ping has no problem with the default packet size (56). The 
mystery remains.

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