[Click] help regd click

[asw ini]

sir,

 i tried to compile a simple router conf in click as per your paper in 
click in ACM transactions given as,

src::FromDevice(eth0);

ctr::Counter;

sink::Discard;

src->ctr;

ctr->sink;

i have saved it in click/confmytest.click.while i gave click-install 
mytest.click the following message appeared,

"while configuring 'src::FromDevice;'

warning:device'etho' is down.please help me where is my mistake?

regards,

aswini

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