barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec

Joe Maimon jmaimon at ttec.com
Mon May 7 00:27:20 UTC 2007



Lincoln Dale wrote:

>>traceroute/tcptraceroute show packet loss and MUCH higher rtt than the
>>corresponding direct pings on the reported hop entries.
>>
>>Is this some sort of massaging or plain just "faking it"? Or is such
>>things merely net-urban myth?
> 
> 
> the vast majority of routers on the internet respond very differently to
> traffic 'directed at them' as opposed to traffic 'routed through them'.

Thanks for your reply.

I did include icmp echo directly to each hop as a comparison.





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