block web sites

we can block web sites using the following methods.

You can block web sites like facebook.com , orkut.com youtube.com etc using this way.

1. Using Anti-virus (Kaspersky)

     Step:1 Login to Parental Control
     Step:2 Seetings > Web=browsing


2. Using your Cisco Router

      ajeesh@tech3:~$ ping youtube.com
      PING youtube.com (74.125.236.38) 56(84) bytes of data.
      64 bytes from maa03s04-in-f6.1e100.net (74.125.236.38): icmp_req=1 ttl=52   time=160 ms

     ajeesh@tech3:~$ whois 74.125.236.38 | grep -E "NetRange|CIDR"
           NetRange:       74.125.0.0 - 74.125.255.255
           CIDR:           74.125.0.0/16


     Step1  : Router> enable
     Step2  : Router# configure terminal
   Step3  : Router(config)#
     Step4  :Router(config)# Ip route 74.125.0.0 255.255.0.0 Null0