Pinging, Say i have 3 routers connected in Serial and 1 computer on each end..
e.g.
[PC1]- - -(X)www(X)www(X) - - -[PC2]
If PC1 pings PC2, with the networks set up correctly... and eigrp routing protocols in place.... only 1 in 10 packets seems to get a response!
You noticed this ?