I have utstarcom ut-300r2 adsl router.
Currently my router is directly connected to switch
which is also connected to lan containing more than 100 users and also connected to my two computers (pc1 & pc2).

Router Info
Telnet menus -http://img221.imageshack.us/img221/9320/telnetwb4.jpg
Telnet Firewall menu - http://img221.imageshack.us/img221/4263/telnet7gn8.jpg
Telnet Mac Filtering - http://img220.imageshack.us/img220/8...lteringcd2.jpg
Telnet Mac Filtering -2 ADD option - http://img220.imageshack.us/img220/6...ringaddhe3.jpg

WAN Info

Wan config -
VPI: 0
VCI: 33
Connection Type: MAC Encapsulation Routing (MER)
Encapsulation Mode: LLC/SNAP-BRIDGING
Use the following IP address:
WAN IP Addressxx.xxx.xxx.xxx - static wan ip
WAN Subnet Mask:
Use the following DNS server addresses:
Primary DNS server: 2xx.xxx.xxx.xxx
Secondary DNS server: 2xx.xxx.xxx.xxx
Enable NAT
Enable Firewall
Enable IGMP Multicast
Enable WAN Service

i want to increase the security.. in which only pc1 & pc2 are allow to access router or internet via router.
how to enable qos ? - http://img233.imageshack.us/img233/7...optionslr2.jpg

Please guide me with Ip filtering & mac filtering process..

Thanks in advance