Network Packet Info With Syslog

Dear Friends ,
I have to configure rsyslog server with few clients . But I am confused to configure rsyslog on the client end properly . From my client side I want to get the Network Packet flow information o my syslog server .
How can I do it ?

My second ques :

what is difference between 'syslog' and 'rsyslog' ?
And If I use rsyslog as server , then can I use syslog as client?

Waiting for kind reply . ..


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