Hi Suresh,
The AV product for *NIX is called SAV for Linux. It can be found on your SEP DVD/downloaded from fileconnect the same as SEP components.
There is no need to anually install license on these SAv for Linux client machies: just ensure that your SEP seat count covers the total number of all Windows, Macs and Linux machines.
Here is an excellent, illustrated guide to installing SAV for Linux (SAVFL):
How to Install SAV for Linux (SAVFL) and Update It Using LUA 2.x (2.3.0.71)
https://www-secure.symantec.com/connect/articles/how-install-sav-linux-savfl-and-update-it-using-lua-2x-23071
You will also find this useful:
SAV for Linux Scanning Best Practices: A (Somewhat) Illustrated Guide
https://www-secure.symantec.com/connect/articles/sav-linux-scanning-best-practices-somewhat-illustrated-guide
The SAVFL client can forward logs to the SEPM for inclusion in alerts, notifications, reports, etc. Chck out the "SAVFL Reporter" functionality referenced above!
Please do keep this thread up-to-date with your progress. Thewre are a couple very good Linux admins here in the forums whose experiences can be of great benefit.
With thanks and best regards