I have a file with multiple IP addresses for different websites, however I only want to print out the websites associated with a specific IP and display the website. For example,

    128.125.21.1,/www.extra.com/home.html,2323,oiehfoioi,wopwpwp
    124.15.21.1,/www.yahoo.com/9998,wjeoiwjo,bbdjksbk

All I need is the websites associated with 128.125.21.1 and I've gotten results using awk to print the entire web address and the IP but I would like to remove the IP
How can I combine awk and sed to accomplish this?